v2.1.2 核心优化与多架构发布 (#561)

* feat: v2.1.0 核心重构与功能增强

## 架构重构
- 全局变量消除,迁移至 Config/State 对象
- SMB 插件融合(smb/smb2/smbghost/smbinfo)
- 服务探测重构,实现 Nmap 风格 fallback 机制
- 输出系统重构,TXT 实时刷盘 + 双写机制
- i18n 框架升级至 go-i18n

## 性能优化
- 正则表达式预编译
- 内存优化 map[string]struct{}
- 并发指纹匹配
- SOCKS5 连接复用
- 滑动窗口调度 + 自适应线程池

## 新功能
- Web 管理界面
- 多格式 POC 适配(xray/afrog)
- 增强指纹库(3139条)
- Favicon hash 指纹识别
- 插件选择性编译(Build Tags)
- fscan-lab 靶场环境
- 默认端口扩展(62→133)

## 构建系统
- 添加 no_local tag 支持排除本地插件
- 多版本构建:fscan/fscan-nolocal/fscan-web
- CI 添加 snapshot 模式支持仅测试构建

## Bug 修复
- 修复 120+ 个问题,包括 RDP panic、批量扫描漏报、
  JSON 输出格式、Redis 检测、Context 超时等

## 测试增强
- 单元测试覆盖率 74-100%
- 并发安全测试
- 集成测试(Web/端口/服务/SSH/ICMP)

* fix(ci): 移除 PR 对 Project 自动化的触发

* fix: Elasticsearch未授权检测优先于爆破 (#554)

* fix: 修复RDP爆破高误报率问题 (#555)

- 移除 screen.go 中错误的认证结果覆盖逻辑
- 启用 NLA 协议的 ErrorCode 字段检测
- 添加 PubKeyAuth 验证确保认证真正成功
- 修复 io.go 中错误被静默忽略的问题
- 修复 socket.go/io.go 中可能导致 panic 的代码
- 修复 screen.go 中文件句柄泄漏和 log.Panic

* fix: 修复-user/-pwd凭据参数不生效的问题

问题原因:
- Parse()解析凭据后更新globalConfig
- 但BuildConfigFromFlags()创建新Config时使用默认字典
- 导致解析的UserPassPairs等凭据信息被丢弃

修复内容:
1. initialize.go: 将Parse解析的凭据结果应用到新Config
2. credential.go: 单用户密码对时创建UserPassPairs
3. rdp.go: 单凭据测试时跳过指纹识别,减少连接次数

* feat: RDP使用NLA仅验证模式,避免挤掉已登录用户

- 添加ErrNLAAuthSuccess标志用于NLA验证成功信号
- tpkt层支持nlaAuthOnly模式,验证成功后不建立完整会话
- x224层正确传播NLA验证结果
- rdpCrack改用NlaAuth进行凭据验证

* fix: 修复进度条在Windows终端满屏重复输出的问题

- 添加终端宽度检测,动态调整进度条长度
- 使用空格覆盖清除旧内容,避免残留
- 简化进度条格式,确保不超过终端宽度

* feat: 优化日志颜色方案,区分漏洞和普通信息

- 新增 LogVuln 级别(红色),用于漏洞和重要发现
- 密码爆破成功、未授权访问、POC漏洞等改用红色显示
- 普通信息(扫描统计等)改为白色
- Web指纹保持绿色

* refactor: 精简化输出,移除冗余启动信息

- 移除showParseSummary开局配置输出
- 移除LogPluginInfo/LogPluginInfoWithPort插件信息输出
- 移除alive_scanner冗余统计输出
- 移除port_scan_start扫描开始提示
- 移除handleUDPPorts SNMP死代码
- 移除相关i18n条目

* chore: 版本号更新为2.1.1

* fix: 降级依赖版本以保持Go 1.20兼容性

* feat(ldap): 添加NTLM Hash认证支持 (#433)

* chore: 清理无用的 replace 指令

* fix(ping): 修复 TTL expired 导致主机误判为存活的问题

在 ExecCommandPing 中增加错误关键词检测,当 ping 输出包含
TTL expired、Destination unreachable 等错误信息时,不再将
目标主机标记为存活。

Fixes #454

* fix(proxy): 修复透明代理导致输出全端口的问题

在代理初始化时主动探测代理行为,通过连接 RFC 5737 保留的
测试地址来检测是否存在"全回显"问题。如果探测到代理不可靠,
则在端口扫描时跳过所有端口,避免误报。

- 新增 proxyReliable 标志位标记代理可靠性
- 新增 ProbeProxyBehavior 函数探测代理行为
- 端口扫描前检查代理可靠性并输出警告

Fixes #495

* refactor: 移动debug模块到common/debug子包

* fix(web): 修复-u模式下Web插件未执行的问题

* fix: 优化输出格式和颜色显示

- 网段统计格式改为 10.253.0.0/16 网段存活: 26
- WebTitle基础信息改为白色,指纹识别单独绿色输出
- 移除重复的端口数量输出

* fix: URL解析自动补全协议头

-uf 文件中 192.168.1.1:8080 自动转为 http://192.168.1.1:8080

* fix: 修复-u/-uf模式下URLs丢失导致0目标扫描的问题

Parse阶段将URLs设置到全局状态,但Initialize随后创建新状态
并覆盖了全局状态,导致URLs数据丢失。现在在创建新状态前
先保存并迁移Parse阶段设置的URLs和HostPorts数据。

* fix: 智能检测HTTP/HTTPS协议并优化URL显示

- 修复-u/-uf模式URLs丢失导致0目标扫描问题
- detectProtocol改为主动TLS握手检测,不依赖服务名
- WebTitle输出显示完整协议(http/https)
- 隐藏标准端口(80/443)使输出更简洁

* refactor: 精简parsers包,统一配置构建入口

- 删除冗余的中间层(XXXInput、XXXParser类)
- 新增 config_builder.go 统一配置构建
- parsers包从3000+行精简至~540行
- 保留核心函数:ParseIP、ParsePort、文件读取、凭据解析

* test: 扩展parsers单元测试覆盖边缘情况

- 新增内网简写解析测试(192/172/10)
- 新增完整IP范围和无效CIDR测试
- 新增Windows行尾(CRLF)处理测试
- 新增凭据和哈希文件解析测试
- 新增端口解析边缘情况测试
- 测试覆盖率达到94.2%

* refactor: 优化控制台输出格式

- 去掉时间戳,保留[*][+]前缀
- Web输出合并WebTitle和WebFinger为一行
- 有指纹显示绿色[+],无指纹显示白色[*]
- 格式: code:xxx len:xxx title:xxx server:xxx [指纹]
- 服务探测格式: [Product:xxx ||Version:xxx] Banner:(xxx)
- 字段对齐,输出更清爽

* feat: 添加凭据测试未发现弱密码的提示

- credential_tester.go: 失败时设置 Type=ResultTypeCredential
- scanner.go: 根据结果类型在 error 级别输出'未发现弱密码'提示
- 新增 i18n 翻译 brute_no_weak_pass

使用 -log all 或 -log error 可看到此提示

* refactor(logging): 重构日志级别为层级过滤设计

- LogLevel 从 string 改为 int 类型,支持层级比较
- 层级设计:Debug(0) < Base(1) < Info(2) < Success(3) < Vuln(4) < Error(5)
- 设置一个级别后,显示该级别及以上的日志
- Error 级别始终显示,不会被配置过滤掉
- 保留向后兼容别名(LevelAll, LevelInfoSuccess 等)
- 更新测试以匹配新的层级过滤行为

* style(logging): Error级别日志改为黄色显示

* style(findnet): NetInfo输出改为每行一个IP

* refactor(ms17010): 优化错误提示,明确指出SMBv1不支持等情况

* fix(credential): 修复凭据测试结果不一致的问题

问题原因:
1. 未知错误类型不重试,导致服务端限流时跳过正确密码
2. SSH 错误分类不够准确,某些临时错误未被识别

修复内容:
1. 未知错误改为可重试(可能是临时问题)
2. 增加 SSH 特有的网络错误识别(handshake failed, disconnect 等)

* fix(portfinger): 修复SMB2服务指纹识别和NetInfo输出问题

- 添加SMB2ProgNeg探针支持现代Windows的SMB2协议
- 修复Go regexp对高位字节的UTF-8兼容问题,使用Latin-1转换
- 修复探针失败后连接重建逻辑
- 修复vendor_product字段名不匹配问题
- 修复NetInfo多行输出被其他日志打断的问题

* fix(config): 从默认端口移除9100,避免触发打印机打印 (#517)

* feat(proxy): 增强代理端口扫描的深度验证机制

- 新增4阶段深度验证:Banner读取→探测发送→响应等待→最终判定
- 新增SOCKS5错误码和代理错误文本检测
- 优化ProbeProxyBehavior探测逻辑,发送数据验证连接可达性
- 解决透明代理/全回显代理导致的假阳性问题

* fix(proxy): 修复代理深度验证的若干问题

- detector.go: 修复 AutoConfigureProxy 覆盖探测结果的问题
  只有未探测过时才设置默认 proxyReliable 值

- port_scan.go: 改进深度验证机制
  - 使用带 Host header 的 HTTP GET 请求替代 OPTIONS
  - 延长响应等待超时至 2s 以适配慢速服务器
  - 正确重置连接 deadline 避免影响后续操作

* refactor: 统一 common 包文件命名风格

Flag.go -> flag.go

* refactor(proxy): 删除自定义 contains() 函数,改用标准库

- 用 strings.Contains() 替代手写的 contains()
- 删除过时的注释

* fix(parsers): 修复带横杠域名被误识别为IP范围的问题

如 111-555.sss.com 这类域名因包含 - 被错误解析为 IP 范围,
添加 looksLikeIPRange() 检查,只有 - 前是有效 IP 才走范围解析

* fix(proxy): 修复代理模式下服务识别错误和端口漏扫问题

- port_scan.go: 验证通过后重建干净连接,避免HTTP GET探测污染服务识别
- port_scan.go: 优化验证策略,用轻量CRLF探测替代HTTP GET,超时从2.2s降至0.6s
- manager.go: 修正ProbeProxyBehavior判断逻辑,超时应视为代理正常转发

* fix(pool): 移除线程池预分配,优化大规模扫描内存占用

WithPreAlloc(true) 会预先创建所有 worker goroutine,
在大规模扫描(如 25域名×65535端口)时可能导致内存问题

* refactor(logging): 统一日志前缀,删除废弃的 LogBase

- 删除 LogBase 函数,所有调用迁移到 LogInfo/LogError
- 新增 PrefixDebug ([.]) 前缀,所有日志级别现在都有前缀
- 修复日志输出缩进不一致的问题
- 删除未使用的 PrefixDefault 常量

* perf(icmp): 实现自适应等待算法优化存活检测性能

- 新增 waitAdaptive 函数,监控响应增量实现智能提前结束
- 算法保守原则:最小等待1s + 连续500ms无新响应才提前结束
- 添加100ms检查间隔避免CPU空转
- 保留原有最大等待时间(3s/6s)作为兜底
- 添加完整单元测试覆盖各种场景

优化效果:
- 全部响应:~100ms (原3s)
- 无响应:~1s (原3s)
- 部分响应后稳定:~1.5s (原3s)

* perf(scan): 实现启发式优化提升扫描体验

1. 端口优先级排序:高价值端口(80,443,22,3389等)优先扫描
   - 用户能更快看到有意义的结果
   - 不影响端口喷洒策略

2. TCP 补充探测:ICMP 响应率<10%时自动启用
   - 对未响应主机用 TCP 80/443/22/445 补充探测
   - 解决防火墙过滤 ICMP 导致漏检的问题

* refactor(grdp): 精简RDP库,删除认证检测不需要的代码

- 删除 VNC 协议支持 (protocol/rfb, client/rfb.go)
- 删除完整客户端框架 (client/)
- 删除 RemoteApp 等插件 (plugin/)
- 删除 RLE 图形解压 (core/rle.go)
- 删除绘图指令处理 (pdu/orders.go, pdu/gdi.go)
- 精简 screen.go,移除截图和完整会话功能
- 移除未使用的 RGB 转换函数

grdp 代码从 13,044 行精简至 7,581 行,削减 42%

* refactor(common): 删除死代码,优化代码风格

- 删除未使用的 joinStrings/joinInts 函数
- 删除未使用的 memStats 字段和 getMemoryInfo 方法
- 简化 parsePasswords 中的循环为 append(...) 形式

* refactor(services): 统一数据库插件的DBWrapper

4个数据库插件(MySQL、PostgreSQL、MSSQL、Oracle)都有相同的sql.DB包装代码,
合并为通用的SQLDBWrapper,减少重复。

* refactor(core,grdp): 删除未使用的死代码

- 移除 BaseScanStrategy.LogPluginInfoWithPort 方法(无调用者)
- 移除 mcs.go 中被注释的旧 connect 函数实现

* refactor: 删除 deadcode 检测出的未使用函数

- proxy/detector.go: 删除 IsSOCKS5Standard, IsProxyInitialized
- findnet.go: 删除 NetworkInfo.OneLine, TreeFormat 方法
- port_scan.go: 删除 estimateScanTime 函数
- web_scanner.go: 删除 GetFingerprints 函数
- 清理相关测试代码

* refactor: 删除更多未使用的死代码

- parse.go: 删除 RemoveDuplicate 函数及其测试
- parsers.go: 删除 excludeHosts, removeDuplicates 别名函数
- 更新测试使用真正的函数名

* fix(test): 修复 TestParseIP_InvalidIPRange 测试用例

- 删除不合理的测试用例(无效IP被当作普通主机名处理是设计行为)
- 修复测试逻辑,只在真正通过时输出"正确"

* fix(scan): 移除域名预解析,保留原始域名进行扫描

域名预解析会将域名转换为IP,导致虚拟主机场景下HTTP访问失败
(Host头变成IP而非域名,无法正确路由)

* fix(scan): 修复 -hf 参数无法单独使用的问题

* fix(proxy): 修复透明代理环境下 SOCKS5 代理全端口误报问题

问题:在透明代理(TUN模式)环境下使用 SOCKS5 代理扫描时,
会出现全端口开放的误报,因为代理可靠性检测被透明代理污染。

修复方案(参考 fscanx):
1. 将探针从 CRLF 改为 HTTP GET,更有效检测真实连接状态
2. 删除 "uncertain" 状态,无响应一律判定为端口关闭
3. 调整超时时间以适应代理链路延迟

Fixes #524

* feat(telnet): 新增 telnetd RCE 命令执行验证,修复未授权访问日志级别

* fix: 修复 i18n.Tr vet 报错、Unicode 测试用例,移除过期域名

- 移除 i18n.Tr 中错误的 fmt.Sprintf fallback,消除 go vet 误报
- 修复 match_engine_test Unicode 测试用例与 Latin-1 转换逻辑不匹配
- README 移除过期的 fscan.club 域名
- 添加 .gitattributes 统一换行符为 LF

* refactor: 统一控制台输出风格,使用统一的日志函数

手动合并 PR #558 的改动,适配重构后的代码路径

* fix(ci): 修复版本注入和CI触发配置

- goreleaser ldflags 指向正确的包路径 common.version/commit/date
- version 改为 var 支持 ldflags 注入,banner 显示 commit 和构建日期
- test-build 触发分支增加 dev-* 通配

* fix(ci): 修复 Windows 产物 .exe.exe 双后缀问题

* feat(ci): 扩展构建架构支持 MIPS/ARM/FreeBSD/Solaris
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If the disclaimer of warranty and limitation of liability provided
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+30
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# Golang Remote Desktop Protocol
grdp is a pure Golang implementation of the Microsoft RDP (Remote Desktop Protocol) protocol (**client side authorization only**).
Forked from [icodeface/grdp](https://github.com/icodeface/grdp)
## Status
**The project is under development and not finished yet.**
* [x] Standard RDP Authentication
* [x] SSL Authentication
* [x] NTLMv2 Authentication
* [x] Windows Clipboard
* [ ] RDP Client(ugly)
* [ ] VNC Client(unfinished)
## Example
1. build in example dir on linux or windows
2. start example on port 8088
3. http://localhost:8088
## Take ideas from
* [rdpy](https://github.com/citronneur/rdpy)
* [node-rdpjs](https://github.com/citronneur/node-rdpjs)
* [gordp](https://github.com/Madnikulin50/gordp)
* [ncrack_rdp](https://github.com/nmap/ncrack/blob/master/modules/ncrack_rdp.cc)
* [webRDP](https://github.com/Chorder/webRDP)
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package core
import (
"encoding/binary"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"io"
)
type ReadBytesComplete func(result []byte, err error)
func StartReadBytes(len int, r io.Reader, cb ReadBytesComplete) {
glog.Debug("create len:", len)
b := make([]byte, len)
go func() {
_, err := io.ReadFull(r, b)
//glog.Debug("StartReadBytes Get", n, "Bytes:", hex.EncodeToString(b))
cb(b, err)
}()
}
func ReadBytes(len int, r io.Reader) ([]byte, error) {
b := make([]byte, len)
length, err := io.ReadFull(r, b)
return b[:length], err
}
func ReadByte(r io.Reader) (byte, error) {
b, err := ReadBytes(1, r)
if err != nil || len(b) == 0 {
return 0, err
}
return b[0], nil
}
func ReadUInt8(r io.Reader) (uint8, error) {
b, err := ReadBytes(1, r)
if err != nil {
return uint8(0), err
} else {
return uint8(b[0]), err
}
}
func ReadUint16LE(r io.Reader) (uint16, error) {
b := make([]byte, 2)
_, err := io.ReadFull(r, b)
if err != nil {
return 0, err
}
return binary.LittleEndian.Uint16(b), nil
}
func ReadUint16BE(r io.Reader) (uint16, error) {
b := make([]byte, 2)
_, err := io.ReadFull(r, b)
if err != nil {
return 0, err
}
return binary.BigEndian.Uint16(b), nil
}
func ReadUInt32LE(r io.Reader) (uint32, error) {
b := make([]byte, 4)
_, err := io.ReadFull(r, b)
if err != nil {
return 0, err
}
return binary.LittleEndian.Uint32(b), nil
}
func ReadUInt32BE(r io.Reader) (uint32, error) {
b := make([]byte, 4)
_, err := io.ReadFull(r, b)
if err != nil {
return 0, err
}
return binary.BigEndian.Uint32(b), nil
}
func WriteByte(data byte, w io.Writer) (int, error) {
b := make([]byte, 1)
b[0] = byte(data)
return w.Write(b)
}
func WriteBytes(data []byte, w io.Writer) (int, error) {
return w.Write(data)
}
func WriteUInt8(data uint8, w io.Writer) (int, error) {
b := make([]byte, 1)
b[0] = byte(data)
return w.Write(b)
}
func WriteUInt16BE(data uint16, w io.Writer) (int, error) {
b := make([]byte, 2)
binary.BigEndian.PutUint16(b, data)
return w.Write(b)
}
func WriteUInt16LE(data uint16, w io.Writer) (int, error) {
b := make([]byte, 2)
binary.LittleEndian.PutUint16(b, data)
return w.Write(b)
}
func WriteUInt32LE(data uint32, w io.Writer) (int, error) {
b := make([]byte, 4)
binary.LittleEndian.PutUint32(b, data)
return w.Write(b)
}
func WriteUInt32BE(data uint32, w io.Writer) (int, error) {
b := make([]byte, 4)
binary.BigEndian.PutUint32(b, data)
return w.Write(b)
}
func PutUint16BE(data uint16) (uint8, uint8) {
b := make([]byte, 2)
binary.BigEndian.PutUint16(b, data)
return uint8(b[0]), uint8(b[1])
}
func Uint16BE(d0, d1 uint8) uint16 {
b := make([]byte, 2)
b[0] = d0
b[1] = d1
return binary.BigEndian.Uint16(b)
}
+81
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package core
import (
"crypto/rsa"
"math/big"
"github.com/huin/asn1ber"
//"crypto/tls"
"errors"
"github.com/icodeface/tls"
"net"
)
type SocketLayer struct {
conn net.Conn
tlsConn *tls.Conn
}
func NewSocketLayer(conn net.Conn) *SocketLayer {
l := &SocketLayer{
conn: conn,
tlsConn: nil,
}
return l
}
func (s *SocketLayer) Read(b []byte) (n int, err error) {
if s.tlsConn != nil {
return s.tlsConn.Read(b)
}
return s.conn.Read(b)
}
func (s *SocketLayer) Write(b []byte) (n int, err error) {
if s.tlsConn != nil {
return s.tlsConn.Write(b)
}
return s.conn.Write(b)
}
func (s *SocketLayer) Close() error {
if s.tlsConn != nil {
err := s.tlsConn.Close()
if err != nil {
return err
}
}
return s.conn.Close()
}
func (s *SocketLayer) StartTLS() error {
config := &tls.Config{
InsecureSkipVerify: true,
MinVersion: tls.VersionTLS10,
MaxVersion: tls.VersionTLS13,
PreferServerCipherSuites: true,
}
s.tlsConn = tls.Client(s.conn, config)
return s.tlsConn.Handshake()
}
type PublicKey struct {
N *big.Int `asn1:"explicit,tag:0"` // modulus
E int `asn1:"explicit,tag:1"` // public exponent
}
func (s *SocketLayer) TlsPubKey() ([]byte, error) {
if s.tlsConn == nil {
return nil, errors.New("TLS conn does not exist")
}
certs := s.tlsConn.ConnectionState().PeerCertificates
if len(certs) == 0 {
return nil, errors.New("no peer certificates")
}
pub, ok := certs[0].PublicKey.(*rsa.PublicKey)
if !ok {
return nil, errors.New("invalid public key type")
}
return asn1ber.Marshal(*pub)
}
+25
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package core
import "github.com/shadow1ng/fscan/mylib/grdp/emission"
type Transport interface {
Read(b []byte) (n int, err error)
Write(b []byte) (n int, err error)
Close() error
On(event, listener interface{}) *emission.Emitter
Once(event, listener interface{}) *emission.Emitter
Emit(event interface{}, arguments ...interface{}) *emission.Emitter
}
type FastPathListener interface {
RecvFastPath(secFlag byte, s []byte)
}
type FastPathSender interface {
SendFastPath(secFlag byte, s []byte) (int, error)
}
type ChannelSender interface {
SendToChannel(channel string, s []byte) (int, error)
}
+67
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@@ -0,0 +1,67 @@
package core
import (
"bytes"
"crypto/rand"
"encoding/binary"
"unicode/utf16"
)
func Reverse(s []byte) []byte {
for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
s[i], s[j] = s[j], s[i]
}
return s
}
func Random(n int) []byte {
const alpha = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
var bytes = make([]byte, n)
rand.Read(bytes)
for i, b := range bytes {
bytes[i] = alpha[b%byte(len(alpha))]
}
return bytes
}
func UTF16ToLittleEndianBytes(u []uint16) []byte {
b := make([]byte, 2*len(u))
for index, value := range u {
binary.LittleEndian.PutUint16(b[index*2:], value)
}
return b
}
func LittleEndianBytesToUTF16(u []byte) []uint16 {
b := make([]uint16, 0, len(u)/2)
n := make([]byte, 2)
for i, v := range u {
if i%2 == 0 {
n[0] = v
} else {
n[1] = v
b = append(b, binary.LittleEndian.Uint16(n))
}
}
return b
}
// s.encode('utf-16le')
func UnicodeEncode(p string) []byte {
return UTF16ToLittleEndianBytes(utf16.Encode([]rune(p)))
}
func UnicodeDecode(p []byte) string {
r := bytes.NewReader(p)
n := make([]uint16, 0, 100)
for r.Len() > 0 {
a, _ := ReadUint16LE(r)
n = append(n, a)
}
//n := LittleEndianBytesToUTF16(p)
return string(utf16.Decode(n))
}
func BytesToUint64(b []byte) uint64 {
return binary.LittleEndian.Uint64(b)
}
+290
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// Package emission provides an event emitter.
// copy form https://raw.githubusercontent.com/chuckpreslar/emission/master/emitter.go
// fix issue with nest once
package emission
import (
"errors"
"fmt"
"os"
"reflect"
"sync"
)
// Default number of maximum listeners for an event.
const DefaultMaxListeners = 10
// Error presented when an invalid argument is provided as a listener function
var ErrNoneFunction = errors.New("Kind of Value for listener is not Func.")
// RecoveryListener ...
type RecoveryListener func(interface{}, interface{}, error)
// Emitter ...
type Emitter struct {
// Mutex to prevent race conditions within the Emitter.
*sync.Mutex
// Map of event to a slice of listener function's reflect Values.
events map[interface{}][]reflect.Value
// Optional RecoveryListener to call when a panic occurs.
recoverer RecoveryListener
// Maximum listeners for debugging potential memory leaks.
maxListeners int
// Map of event to a slice of listener function's reflect Values.
onces map[interface{}][]reflect.Value
}
// AddListener appends the listener argument to the event arguments slice
// in the Emitter's events map. If the number of listeners for an event
// is greater than the Emitter's maximum listeners then a warning is printed.
// If the relect Value of the listener does not have a Kind of Func then
// AddListener panics. If a RecoveryListener has been set then it is called
// recovering from the panic.
func (emitter *Emitter) AddListener(event, listener interface{}) *Emitter {
emitter.Lock()
defer emitter.Unlock()
fn := reflect.ValueOf(listener)
if reflect.Func != fn.Kind() {
if nil == emitter.recoverer {
panic(ErrNoneFunction)
} else {
emitter.recoverer(event, listener, ErrNoneFunction)
}
}
if emitter.maxListeners != -1 && emitter.maxListeners < len(emitter.events[event])+1 {
fmt.Fprintf(os.Stdout, "Warning: event `%v` has exceeded the maximum "+
"number of listeners of %d.\n", event, emitter.maxListeners)
}
emitter.events[event] = append(emitter.events[event], fn)
return emitter
}
// On is an alias for AddListener.
func (emitter *Emitter) On(event, listener interface{}) *Emitter {
return emitter.AddListener(event, listener)
}
// RemoveListener removes the listener argument from the event arguments slice
// in the Emitter's events map. If the reflect Value of the listener does not
// have a Kind of Func then RemoveListener panics. If a RecoveryListener has
// been set then it is called after recovering from the panic.
func (emitter *Emitter) RemoveListener(event, listener interface{}) *Emitter {
emitter.Lock()
defer emitter.Unlock()
fn := reflect.ValueOf(listener)
if reflect.Func != fn.Kind() {
if nil == emitter.recoverer {
panic(ErrNoneFunction)
} else {
emitter.recoverer(event, listener, ErrNoneFunction)
}
}
if events, ok := emitter.events[event]; ok {
newEvents := []reflect.Value{}
for _, listener := range events {
if fn.Pointer() != listener.Pointer() {
newEvents = append(newEvents, listener)
}
}
emitter.events[event] = newEvents
}
if events, ok := emitter.onces[event]; ok {
newEvents := []reflect.Value{}
for _, listener := range events {
if fn.Pointer() != listener.Pointer() {
newEvents = append(newEvents, listener)
}
}
emitter.onces[event] = newEvents
}
return emitter
}
// Off is an alias for RemoveListener.
func (emitter *Emitter) Off(event, listener interface{}) *Emitter {
return emitter.RemoveListener(event, listener)
}
// Once generates a new function which invokes the supplied listener
// only once before removing itself from the event's listener slice
// in the Emitter's events map. If the reflect Value of the listener
// does not have a Kind of Func then Once panics. If a RecoveryListener
// has been set then it is called after recovering from the panic.
func (emitter *Emitter) Once(event, listener interface{}) *Emitter {
emitter.Lock()
defer emitter.Unlock()
fn := reflect.ValueOf(listener)
if reflect.Func != fn.Kind() {
if nil == emitter.recoverer {
panic(ErrNoneFunction)
} else {
emitter.recoverer(event, listener, ErrNoneFunction)
}
}
if emitter.maxListeners != -1 && emitter.maxListeners < len(emitter.onces[event])+1 {
fmt.Fprintf(os.Stdout, "Warning: event `%v` has exceeded the maximum "+
"number of listeners of %d.\n", event, emitter.maxListeners)
}
emitter.onces[event] = append(emitter.onces[event], fn)
return emitter
}
// Emit attempts to use the reflect package to Call each listener stored
// in the Emitter's events map with the supplied arguments. Each listener
// is called within its own go routine. The reflect package will panic if
// the agruments supplied do not align the parameters of a listener function.
// If a RecoveryListener has been set then it is called after recovering from
// the panic.
func (emitter *Emitter) Emit(event interface{}, arguments ...interface{}) *Emitter {
var (
listeners []reflect.Value
ok bool
)
// Lock the mutex when reading from the Emitter's
// events map.
emitter.Lock()
if listeners, ok = emitter.events[event]; !ok {
// If the Emitter does not include the event in its
// event map, it has no listeners to Call yet.
emitter.Unlock()
goto ONCES
}
// Unlock the mutex immediately following the read
// instead of deferring so that listeners registered
// with Once can aquire the mutex for removal.
emitter.Unlock()
emitter.callListeners(listeners, event, arguments...)
ONCES:
// execute onces
emitter.Lock()
if listeners, ok = emitter.onces[event]; !ok {
emitter.Unlock()
return emitter
}
emitter.Unlock()
emitter.callListeners(listeners, event, arguments...)
// clear executed listeners
emitter.onces[event] = emitter.onces[event][len(listeners):]
return emitter
}
func (emitter *Emitter) callListeners(listeners []reflect.Value, event interface{}, arguments ...interface{}) {
var wg sync.WaitGroup
wg.Add(len(listeners))
for _, fn := range listeners {
go func(fn reflect.Value) {
defer wg.Done()
// Recover from potential panics, supplying them to a
// RecoveryListener if one has been set, else allowing
// the panic to occur.
if nil != emitter.recoverer {
defer func() {
if r := recover(); nil != r {
err := fmt.Errorf("%v", r)
emitter.recoverer(event, fn.Interface(), err)
}
}()
}
var values []reflect.Value
for i := 0; i < len(arguments); i++ {
if arguments[i] == nil {
values = append(values, reflect.New(fn.Type().In(i)).Elem())
} else {
argValue := reflect.ValueOf(arguments[i])
expectedType := fn.Type().In(i)
// 检查是否需要转换类型
if argValue.Type().ConvertibleTo(expectedType) {
// 如果可以转换,则转换类型
//fmt.Printf("将参数 %v(类型 %v)转换为所需类型 %v\n", arguments[i], argValue.Type(), expectedType)
argValue = argValue.Convert(expectedType)
} else {
// 打印错误信息,类型不匹配
fmt.Printf("无法将参数 %v(类型 %v)转换为所需类型 %v\n", arguments[i], argValue.Type(), expectedType)
continue
}
//values = append(values, reflect.ValueOf(arguments[i]))
values = append(values, argValue)
}
}
fn.Call(values)
}(fn)
}
wg.Wait()
}
// RecoverWith sets the listener to call when a panic occurs, recovering from
// panics and attempting to keep the application from crashing.
func (emitter *Emitter) RecoverWith(listener RecoveryListener) *Emitter {
emitter.recoverer = listener
return emitter
}
// SetMaxListeners sets the maximum number of listeners per
// event for the Emitter. If -1 is passed as the maximum,
// all events may have unlimited listeners. By default, each
// event can have a maximum number of 10 listeners which is
// useful for finding memory leaks.
func (emitter *Emitter) SetMaxListeners(max int) *Emitter {
emitter.Lock()
defer emitter.Unlock()
emitter.maxListeners = max
return emitter
}
// GetListenerCount gets count of listeners for a given event.
func (emitter *Emitter) GetListenerCount(event interface{}) (count int) {
emitter.Lock()
if listeners, ok := emitter.events[event]; ok {
count = len(listeners)
}
emitter.Unlock()
return
}
// NewEmitter returns a new Emitter object, defaulting the
// number of maximum listeners per event to the DefaultMaxListeners
// constant and initializing its events map.
func NewEmitter() (emitter *Emitter) {
emitter = new(Emitter)
emitter.Mutex = new(sync.Mutex)
emitter.events = make(map[interface{}][]reflect.Value)
emitter.maxListeners = DefaultMaxListeners
emitter.onces = make(map[interface{}][]reflect.Value)
return
}
+129
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package glog
import (
"fmt"
"log"
"sync"
)
var (
logger *log.Logger
level LEVEL
mu sync.Mutex
)
type LEVEL int
const (
TRACE LEVEL = iota
DEBUG
INFO
WARN
ERROR
NONE
)
func SetLogger(l *log.Logger) {
l.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)
logger = l
}
func SetLevel(l LEVEL) {
level = l
}
func checkLogger() {
if logger == nil && level != NONE {
panic("logger not inited")
}
}
func Trace(v ...interface{}) {
checkLogger()
if level <= TRACE {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[TRACE]")
logger.Output(2, fmt.Sprintln(v...))
}
}
func Tracef(f string, v ...interface{}) {
checkLogger()
if level <= TRACE {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[TRACE]")
logger.Output(2, fmt.Sprintln(fmt.Sprintf(f, v...)))
}
}
func Debug(v ...interface{}) {
checkLogger()
if level <= DEBUG {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[DEBUG]")
logger.Output(2, fmt.Sprintln(v...))
}
}
func Debugf(f string, v ...interface{}) {
checkLogger()
if level <= DEBUG {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[DEBUG]")
logger.Output(2, fmt.Sprintln(fmt.Sprintf(f, v...)))
}
}
func Info(v ...interface{}) {
checkLogger()
if level <= INFO {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[INFO]")
logger.Output(2, fmt.Sprintln(v...))
}
}
func Infof(f string, v ...interface{}) {
checkLogger()
if level <= INFO {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[INFO]")
logger.Output(2, fmt.Sprintln(fmt.Sprintf(f, v...)))
}
}
func Warn(v ...interface{}) {
checkLogger()
if level <= WARN {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[WARN]")
logger.Output(2, fmt.Sprintln(v...))
}
}
func Warnf(f string, v ...interface{}) {
checkLogger()
if level <= WARN {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[WARN]")
logger.Output(2, fmt.Sprintln(fmt.Sprintf(f, v...)))
}
}
func Error(v ...interface{}) {
checkLogger()
if level <= ERROR {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[ERROR]")
logger.Output(2, fmt.Sprintln(v...))
}
}
func Errorf(f string, v ...interface{}) {
checkLogger()
if level <= ERROR {
mu.Lock()
defer mu.Unlock()
logger.SetPrefix("[ERROR]")
logger.Output(2, fmt.Sprintln(fmt.Sprintf(f, v...)))
}
}
+269
View File
@@ -0,0 +1,269 @@
package login
import (
"errors"
"fmt"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/nla"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/pdu"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/sec"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/tpkt"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/x224"
"golang.org/x/net/context"
"golang.org/x/net/proxy"
"log"
"net"
"net/url"
"os"
"strings"
"time"
)
var (
Socks5Proxy string = ""
LogLever glog.LEVEL = glog.NONE
OutputDir string
)
// NlaAuth 仅进行NLA认证验证,不建立RDP会话,不会挤掉已登录用户
// 返回: (认证成功, 错误信息)
func NlaAuth(host, domain, user, password string, timeout int64) (bool, error) {
g := NewClient(host, LogLever)
return g.NlaAuthOnly(domain, user, password, timeout)
}
type Client struct {
Host string // ip:port
tpkt *tpkt.TPKT
x224 *x224.X224
mcs *t125.MCSClient
sec *sec.Client
pdu *pdu.Client
}
func NewClient(host string, logLevel glog.LEVEL) *Client {
glog.SetLevel(logLevel)
logger := log.New(os.Stdout, "", 0)
glog.SetLogger(logger)
return &Client{
Host: host,
}
}
func WrapperTcpWithTimeout(network, address string, timeout time.Duration) (net.Conn, error) {
local_ip := "0.0.0.0"
net_ip := net.ParseIP(local_ip)
if net_ip == nil {
net_ip = net.ParseIP("0.0.0.0")
}
local_addr := &net.TCPAddr{
IP: net_ip,
}
d := &net.Dialer{Timeout: timeout, LocalAddr: local_addr}
return WrapperTCP(network, address, d)
}
func WrapperTCP(network, address string, forward *net.Dialer) (net.Conn, error) {
var conn net.Conn
if Socks5Proxy == "" {
var err error
conn, err = forward.Dial(network, address)
if err != nil {
return nil, err
}
} else {
dailer, err := Socks5Dailer(forward)
if err != nil {
return nil, err
}
conn, err = dailer.Dial(network, address)
if err != nil {
return nil, err
}
}
timeout := forward.Timeout
if err := conn.SetWriteDeadline(time.Now().Add(timeout * 6)); err != nil {
return nil, err
}
if err := conn.SetReadDeadline(time.Now().Add(timeout * 6)); err != nil {
return nil, err
}
return conn, nil
}
func Socks5Dailer(forward *net.Dialer) (proxy.Dialer, error) {
u, err := url.Parse(Socks5Proxy)
if err != nil {
return nil, err
}
if strings.ToLower(u.Scheme) != "socks5" {
return nil, errors.New("Only support socks5")
}
address := u.Host
var auth proxy.Auth
var dailer proxy.Dialer
if u.User.String() != "" {
auth = proxy.Auth{}
auth.User = u.User.Username()
password, _ := u.User.Password()
auth.Password = password
dailer, err = proxy.SOCKS5("tcp", address, &auth, forward)
} else {
dailer, err = proxy.SOCKS5("tcp", address, nil, forward)
}
if err != nil {
return nil, err
}
return dailer, nil
}
// NlaAuthOnly 仅进行NLA认证验证凭据,不建立RDP会话
// 这样不会挤掉已登录的用户
func (g *Client) NlaAuthOnly(domain, user, pwd string, timeout int64) (bool, error) {
conn, err := WrapperTcpWithTimeout("tcp", g.Host, time.Duration(timeout)*time.Second)
if err != nil {
return false, fmt.Errorf("[dial err] %v", err)
}
defer conn.Close()
g.tpkt = tpkt.New(core.NewSocketLayer(conn), nla.NewNTLMv2(domain, user, pwd))
g.x224 = x224.New(g.tpkt)
// 设置NLA仅验证模式
g.tpkt.SetNLAAuthOnly(true)
// 使用 PROTOCOL_HYBRID (NLA) 协议
g.x224.SetRequestedProtocol(x224.PROTOCOL_HYBRID)
// 用于接收结果的通道
resultChan := make(chan error, 1)
// 监听错误事件(包括 ErrNLAAuthSuccess
g.x224.On("error", func(err error) {
resultChan <- err
})
// 监听连接事件(不应该发生在 auth-only 模式)
g.x224.On("connect", func(protocol uint32) {
resultChan <- fmt.Errorf("unexpected connect in auth-only mode")
})
// 发起连接
err = g.x224.Connect()
if err != nil {
return false, err
}
// 等待结果或超时
select {
case err := <-resultChan:
if err == tpkt.ErrNLAAuthSuccess {
return true, nil
}
return false, err
case <-time.After(time.Duration(timeout*3) * time.Second):
return false, fmt.Errorf("NLA auth timeout")
}
}
func (g *Client) ProbeOSInfo(host, domain, user, pwd string, timeout int64, rdpProtocol uint32) (info map[string]any) {
start := time.Now()
exitFlag := make(chan bool)
info = make(map[string]any)
targetSlice := strings.Split(g.Host, ":")
ip := targetSlice[0]
conn, err := WrapperTcpWithTimeout("tcp", g.Host, time.Duration(timeout)*time.Second)
if err != nil {
return
}
defer conn.Close()
glog.Info(conn.LocalAddr().String())
g.tpkt = tpkt.New(core.NewSocketLayer(conn), nla.NewNTLMv2(domain, user, pwd))
g.x224 = x224.New(g.tpkt)
g.mcs = t125.NewMCSClient(g.x224)
g.sec = sec.NewClient(g.mcs)
g.pdu = pdu.NewClient(g.sec)
g.sec.SetUser(user)
g.sec.SetPwd(pwd)
g.sec.SetDomain(domain)
g.tpkt.SetFastPathListener(g.sec)
g.sec.SetFastPathListener(g.pdu)
g.pdu.SetFastPathSender(g.tpkt)
g.sec.SetChannelSender(g.mcs)
g.tpkt.On("os_info", func(infoMap map[string]any) {
glog.Debug("[+] callback, get os info ........................")
for k, v := range infoMap {
glog.Debugf("%s: %s\n", k, v)
}
info = infoMap
g.pdu.Emit("done")
})
g.x224.SetRequestedProtocol(rdpProtocol)
g.x224.On("reconnect", func(protocol uint32) {
info["reconn"] = protocol
g.pdu.Emit("close")
exitFlag <- true
})
err = g.x224.Connect()
if err != nil {
info["err"] = err.Error()
return
}
glog.Info("wait connect ok")
g.pdu.On("error", func(e error) {
err = e
glog.Error("error", e)
g.pdu.Emit("done")
})
g.pdu.On("close", func() {
err = errors.New("close")
glog.Info("on close")
g.pdu.Emit("done")
})
g.pdu.On("success", func() {
glog.Debugf("===============login success %s===============", ip)
err = nil
g.pdu.Emit("done")
})
g.pdu.On("ready", func() {
err = nil
glog.Debug("on ready")
})
g.pdu.On("bitmap", func(rectangles []pdu.BitmapData) {
})
g.pdu.On("done", func() {
glog.Debug("done信号触发")
exitFlag <- true
})
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeout*3)*time.Second)
defer cancel()
loop:
for {
select {
case <-time.After(time.Second * time.Duration(timeout)):
break loop
case <-exitFlag:
break loop
case <-ctx.Done():
glog.Debug("总超时已达到,退出")
break loop
}
}
glog.Debug("循环结束,总时间过去了:", time.Since(start))
return info
}
+183
View File
@@ -0,0 +1,183 @@
package lic
import (
"io"
"github.com/shadow1ng/fscan/mylib/grdp/core"
)
const (
LICENSE_REQUEST = 0x01
PLATFORM_CHALLENGE = 0x02
NEW_LICENSE = 0x03
UPGRADE_LICENSE = 0x04
LICENSE_INFO = 0x12
NEW_LICENSE_REQUEST = 0x13
PLATFORM_CHALLENGE_RESPONSE = 0x15
ERROR_ALERT = 0xFF
)
// error code
const (
ERR_INVALID_SERVER_CERTIFICATE = 0x00000001
ERR_NO_LICENSE = 0x00000002
ERR_INVALID_SCOPE = 0x00000004
ERR_NO_LICENSE_SERVER = 0x00000006
STATUS_VALID_CLIENT = 0x00000007
ERR_INVALID_CLIENT = 0x00000008
ERR_INVALID_PRODUCTID = 0x0000000B
ERR_INVALID_MESSAGE_LEN = 0x0000000C
ERR_INVALID_MAC = 0x00000003
)
// state transition
const (
ST_TOTAL_ABORT = 0x00000001
ST_NO_TRANSITION = 0x00000002
ST_RESET_PHASE_TO_START = 0x00000003
ST_RESEND_LAST_MESSAGE = 0x00000004
)
/*
"""
@summary: Binary blob data type
@see: http://msdn.microsoft.com/en-us/library/cc240481.aspx
"""
*/
type BinaryBlobType uint16
const (
BB_ANY_BLOB = 0x0000
BB_DATA_BLOB = 0x0001
BB_RANDOM_BLOB = 0x0002
BB_CERTIFICATE_BLOB = 0x0003
BB_ERROR_BLOB = 0x0004
BB_ENCRYPTED_DATA_BLOB = 0x0009
BB_KEY_EXCHG_ALG_BLOB = 0x000D
BB_SCOPE_BLOB = 0x000E
BB_CLIENT_USER_NAME_BLOB = 0x000F
BB_CLIENT_MACHINE_NAME_BLOB = 0x0010
)
type ErrorMessage struct {
DwErrorCode uint32
DwStateTransaction uint32
Blob []byte
}
func readErrorMessage(r io.Reader) *ErrorMessage {
m := &ErrorMessage{}
m.DwErrorCode, _ = core.ReadUInt32LE(r)
m.DwStateTransaction, _ = core.ReadUInt32LE(r)
return m
}
type LicensePacket struct {
BMsgtype uint8
Flag uint8
WMsgSize uint16
LicensingMessage interface{}
}
func ReadLicensePacket(r io.Reader) *LicensePacket {
l := &LicensePacket{}
l.BMsgtype, _ = core.ReadUInt8(r)
l.Flag, _ = core.ReadUInt8(r)
l.WMsgSize, _ = core.ReadUint16LE(r)
switch l.BMsgtype {
case ERROR_ALERT:
l.LicensingMessage = readErrorMessage(r)
default:
l.LicensingMessage, _ = core.ReadBytes(int(l.WMsgSize-4), r)
}
return l
}
/*
"""
@summary: Blob use by license manager to exchange security data
@see: http://msdn.microsoft.com/en-us/library/cc240481.aspx
"""
*/
type LicenseBinaryBlob struct {
WBlobType uint16 `struc:"little"`
WBlobLen uint16 `struc:"little"`
BlobData []byte `struc:"sizefrom=WBlobLen"`
}
func NewLicenseBinaryBlob(WBlobType uint16) *LicenseBinaryBlob {
return &LicenseBinaryBlob{}
}
/*
"""
@summary: License server product information
@see: http://msdn.microsoft.com/en-us/library/cc241915.aspx
"""
*/
type ProductInformation struct {
DwVersion uint32 `struc:"little"`
CbCompanyName uint32 `struc:"little"`
//may contain "Microsoft Corporation" from server microsoft
PbCompanyName []byte `struc:"sizefrom=CbCompanyName"`
CbProductId uint32 `struc:"little"`
//may contain "A02" from microsoft license server
PbProductId []byte `struc:"sizefrom=CbProductId"`
}
/*
@summary: Send by server to signal license request
server -> client
@see: http://msdn.microsoft.com/en-us/library/cc241914.aspx
*/
type ServerLicenseRequest struct {
ServerRandom []byte `struc:"[32]byte"`
ProductInfo ProductInformation `struc:"little"`
KeyExchangeList LicenseBinaryBlob `struc:"little"`
ServerCertificate LicenseBinaryBlob `struc:"little"`
//ScopeList ScopeList
}
/*
@summary: Send by client to ask new license for client.
RDPY doesn'support license reuse, need it in futur version
@see: http://msdn.microsoft.com/en-us/library/cc241918.aspx
#RSA and must be only RSA
#pure microsoft client ;-)
#http://msdn.microsoft.com/en-us/library/1040af38-c733-4fb3-acd1-8db8cc979eda#id10
*/
type ClientNewLicenseRequest struct {
PreferredKeyExchangeAlg uint32 `struc:"little"`
PlatformId uint32 `struc:"little"`
ClientRandom []byte `struc:"[32]byte"`
EncryptedPreMasterSecret LicenseBinaryBlob `struc:"little"`
ClientUserName LicenseBinaryBlob `struc:"little"`
ClientMachineName LicenseBinaryBlob `struc:"little"`
}
/*
@summary: challenge send from server to client
@see: http://msdn.microsoft.com/en-us/library/cc241921.aspx
*/
type ServerPlatformChallenge struct {
ConnectFlags uint32
EncryptedPlatformChallenge LicenseBinaryBlob
MACData [16]byte
}
/*
"""
@summary: client challenge response
@see: http://msdn.microsoft.com/en-us/library/cc241922.aspx
"""
*/
type ClientPLatformChallengeResponse struct {
EncryptedPlatformChallengeResponse LicenseBinaryBlob
EncryptedHWID LicenseBinaryBlob
MACData []byte //[16]byte
}
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package nla
import (
"encoding/asn1"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
)
type NegoToken struct {
Data []byte `asn1:"explicit,tag:0"`
}
type TSRequest struct {
Version int `asn1:"explicit,tag:0"`
NegoTokens []NegoToken `asn1:"optional,explicit,tag:1"`
AuthInfo []byte `asn1:"optional,explicit,tag:2"`
PubKeyAuth []byte `asn1:"optional,explicit,tag:3"`
ErrorCode int `asn1:"optional,explicit,tag:4"`
}
type TSCredentials struct {
CredType int `asn1:"explicit,tag:0"`
Credentials []byte `asn1:"explicit,tag:1"`
}
type TSPasswordCreds struct {
DomainName []byte `asn1:"explicit,tag:0"`
UserName []byte `asn1:"explicit,tag:1"`
Password []byte `asn1:"explicit,tag:2"`
}
type TSCspDataDetail struct {
KeySpec int `asn1:"explicit,tag:0"`
CardName string `asn1:"explicit,tag:1"`
ReaderName string `asn1:"explicit,tag:2"`
ContainerName string `asn1:"explicit,tag:3"`
CspName string `asn1:"explicit,tag:4"`
}
type TSSmartCardCreds struct {
Pin string `asn1:"explicit,tag:0"`
CspData []TSCspDataDetail `asn1:"explicit,tag:1"`
UserHint string `asn1:"explicit,tag:2"`
DomainHint string `asn1:"explicit,tag:3"`
}
func EncodeDERTRequest(msgs []Message, authInfo []byte, pubKeyAuth []byte) []byte {
req := TSRequest{
Version: 2,
}
if len(msgs) > 0 {
req.NegoTokens = make([]NegoToken, 0, len(msgs))
}
for _, msg := range msgs {
token := NegoToken{msg.Serialize()}
req.NegoTokens = append(req.NegoTokens, token)
}
if len(authInfo) > 0 {
req.AuthInfo = authInfo
}
if len(pubKeyAuth) > 0 {
req.PubKeyAuth = pubKeyAuth
}
result, err := asn1.Marshal(req)
if err != nil {
glog.Error(err)
}
return result
}
func DecodeDERTRequest(s []byte) (*TSRequest, error) {
treq := &TSRequest{}
_, err := asn1.Unmarshal(s, treq)
return treq, err
}
func EncodeDERTCredentials(domain, username, password []byte) []byte {
tpas := TSPasswordCreds{domain, username, password}
result, err := asn1.Marshal(tpas)
if err != nil {
glog.Error(err)
}
tcre := TSCredentials{1, result}
result, err = asn1.Marshal(tcre)
if err != nil {
glog.Error(err)
}
return result
}
func DecodeDERTCredentials(s []byte) (*TSCredentials, error) {
tcre := &TSCredentials{}
_, err := asn1.Unmarshal(s, tcre)
return tcre, err
}
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package nla
import (
"crypto/hmac"
"crypto/md5"
"crypto/rc4"
"strings"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"golang.org/x/crypto/md4"
)
func MD4(data []byte) []byte {
h := md4.New()
h.Write(data)
return h.Sum(nil)
}
func MD5(data []byte) []byte {
h := md5.New()
h.Write(data)
return h.Sum(nil)
}
func HMAC_MD5(key, data []byte) []byte {
h := hmac.New(md5.New, key)
h.Write(data)
return h.Sum(nil)
}
// Version 2 of NTLM hash function
func NTOWFv2(password, user, domain string) []byte {
return HMAC_MD5(MD4(core.UnicodeEncode(password)), core.UnicodeEncode(strings.ToUpper(user)+domain))
}
// Same as NTOWFv2
func LMOWFv2(password, user, domain string) []byte {
return NTOWFv2(password, user, domain)
}
func RC4K(key, src []byte) []byte {
result := make([]byte, len(src))
rc4obj, _ := rc4.NewCipher(key)
rc4obj.XORKeyStream(result, src)
return result
}
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package nla
import (
"bytes"
"crypto/md5"
"crypto/rc4"
"encoding/binary"
"encoding/hex"
"time"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
)
const (
WINDOWS_MINOR_VERSION_0 = 0x00
WINDOWS_MINOR_VERSION_1 = 0x01
WINDOWS_MINOR_VERSION_2 = 0x02
WINDOWS_MINOR_VERSION_3 = 0x03
WINDOWS_MAJOR_VERSION_5 = 0x05
WINDOWS_MAJOR_VERSION_6 = 0x06
NTLMSSP_REVISION_W2K3 = 0x0F
)
const (
MsvAvEOL = 0x0000
MsvAvNbComputerName = 0x0001
MsvAvNbDomainName = 0x0002
MsvAvDnsComputerName = 0x0003
MsvAvDnsDomainName = 0x0004
MsvAvDnsTreeName = 0x0005
MsvAvFlags = 0x0006
MsvAvTimestamp = 0x0007
MsvAvSingleHost = 0x0008
MsvAvTargetName = 0x0009
MsvChannelBindings = 0x000A
)
type AVPair struct {
Id uint16 `struc:"little"`
Len uint16 `struc:"little,sizeof=Value"`
Value []byte `struc:"little"`
}
const (
NTLMSSP_NEGOTIATE_56 = 0x80000000
NTLMSSP_NEGOTIATE_KEY_EXCH = 0x40000000
NTLMSSP_NEGOTIATE_128 = 0x20000000
NTLMSSP_NEGOTIATE_VERSION = 0x02000000
NTLMSSP_NEGOTIATE_TARGET_INFO = 0x00800000
NTLMSSP_REQUEST_NON_NT_SESSION_KEY = 0x00400000
NTLMSSP_NEGOTIATE_IDENTIFY = 0x00100000
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY = 0x00080000
NTLMSSP_TARGET_TYPE_SERVER = 0x00020000
NTLMSSP_TARGET_TYPE_DOMAIN = 0x00010000
NTLMSSP_NEGOTIATE_ALWAYS_SIGN = 0x00008000
NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED = 0x00002000
NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED = 0x00001000
NTLMSSP_NEGOTIATE_NTLM = 0x00000200
NTLMSSP_NEGOTIATE_LM_KEY = 0x00000080
NTLMSSP_NEGOTIATE_DATAGRAM = 0x00000040
NTLMSSP_NEGOTIATE_SEAL = 0x00000020
NTLMSSP_NEGOTIATE_SIGN = 0x00000010
NTLMSSP_REQUEST_TARGET = 0x00000004
NTLM_NEGOTIATE_OEM = 0x00000002
NTLMSSP_NEGOTIATE_UNICODE = 0x00000001
)
type NVersion struct {
ProductMajorVersion uint8 `struc:"little"`
ProductMinorVersion uint8 `struc:"little"`
ProductBuild uint16 `struc:"little"`
Reserved [3]byte `struc:"little"`
NTLMRevisionCurrent uint8 `struc:"little"`
}
func NewNVersion() NVersion {
return NVersion{
ProductMajorVersion: WINDOWS_MAJOR_VERSION_6,
ProductMinorVersion: WINDOWS_MINOR_VERSION_0,
ProductBuild: 6002,
NTLMRevisionCurrent: NTLMSSP_REVISION_W2K3,
}
}
type Message interface {
Serialize() []byte
}
type NegotiateMessage struct {
Signature [8]byte `struc:"little"`
MessageType uint32 `struc:"little"`
NegotiateFlags uint32 `struc:"little"`
DomainNameLen uint16 `struc:"little"`
DomainNameMaxLen uint16 `struc:"little"`
DomainNameBufferOffset uint32 `struc:"little"`
WorkstationLen uint16 `struc:"little"`
WorkstationMaxLen uint16 `struc:"little"`
WorkstationBufferOffset uint32 `struc:"little"`
Version NVersion `struc:"little"`
Payload [32]byte `struc:"skip"`
}
func NewNegotiateMessage() *NegotiateMessage {
return &NegotiateMessage{
Signature: [8]byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0x00},
MessageType: 0x00000001,
}
}
func (m *NegotiateMessage) Serialize() []byte {
if (m.NegotiateFlags & NTLMSSP_NEGOTIATE_VERSION) != 0 {
m.Version = NewNVersion()
}
buff := &bytes.Buffer{}
struc.Pack(buff, m)
return buff.Bytes()
}
type ChallengeMessage struct {
Signature []byte `struc:"[8]byte"`
MessageType uint32 `struc:"little"`
TargetNameLen uint16 `struc:"little"`
TargetNameMaxLen uint16 `struc:"little"`
TargetNameBufferOffset uint32 `struc:"little"`
NegotiateFlags uint32 `struc:"little"`
ServerChallenge [8]byte `struc:"little"`
Reserved [8]byte `struc:"little"`
TargetInfoLen uint16 `struc:"little"`
TargetInfoMaxLen uint16 `struc:"little"`
TargetInfoBufferOffset uint32 `struc:"little"`
Version NVersion `struc:"skip"`
Payload []byte `struc:"skip"`
}
func (m *ChallengeMessage) Serialize() []byte {
buff := &bytes.Buffer{}
struc.Pack(buff, m)
if (m.NegotiateFlags & NTLMSSP_NEGOTIATE_VERSION) != 0 {
struc.Pack(buff, m.Version)
}
buff.Write(m.Payload)
return buff.Bytes()
}
func NewChallengeMessage() *ChallengeMessage {
return &ChallengeMessage{
Signature: []byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0x00},
MessageType: 0x00000002,
}
}
// total len - payload len
func (m *ChallengeMessage) BaseLen() uint32 {
return 56
}
func (m *ChallengeMessage) getTargetInfo() []byte {
if m.TargetInfoLen == 0 {
return make([]byte, 0)
}
offset := m.BaseLen()
start := m.TargetInfoBufferOffset - offset
return m.Payload[start : start+uint32(m.TargetInfoLen)]
}
func (m *ChallengeMessage) getTargetName() []byte {
if m.TargetNameLen == 0 {
return make([]byte, 0)
}
offset := m.BaseLen()
start := m.TargetNameBufferOffset - offset
return m.Payload[start : start+uint32(m.TargetNameLen)]
}
func (m *ChallengeMessage) getTargetInfoTimestamp(data []byte) []byte {
r := bytes.NewReader(data)
for r.Len() > 0 {
avPair := &AVPair{}
struc.Unpack(r, avPair)
if avPair.Id == MsvAvTimestamp {
return avPair.Value
}
if avPair.Id == MsvAvEOL {
break
}
}
return nil
}
type AuthenticateMessage struct {
Signature [8]byte
MessageType uint32 `struc:"little"`
LmChallengeResponseLen uint16 `struc:"little"`
LmChallengeResponseMaxLen uint16 `struc:"little"`
LmChallengeResponseBufferOffset uint32 `struc:"little"`
NtChallengeResponseLen uint16 `struc:"little"`
NtChallengeResponseMaxLen uint16 `struc:"little"`
NtChallengeResponseBufferOffset uint32 `struc:"little"`
DomainNameLen uint16 `struc:"little"`
DomainNameMaxLen uint16 `struc:"little"`
DomainNameBufferOffset uint32 `struc:"little"`
UserNameLen uint16 `struc:"little"`
UserNameMaxLen uint16 `struc:"little"`
UserNameBufferOffset uint32 `struc:"little"`
WorkstationLen uint16 `struc:"little"`
WorkstationMaxLen uint16 `struc:"little"`
WorkstationBufferOffset uint32 `struc:"little"`
EncryptedRandomSessionLen uint16 `struc:"little"`
EncryptedRandomSessionMaxLen uint16 `struc:"little"`
EncryptedRandomSessionBufferOffset uint32 `struc:"little"`
NegotiateFlags uint32 `struc:"little"`
Version NVersion `struc:"little"`
MIC [16]byte `struc:"little"`
Payload []byte `struc:"skip"`
}
func (m *AuthenticateMessage) BaseLen() uint32 {
return 88
}
func NewAuthenticateMessage(negFlag uint32, domain, user, workstation []byte,
lmchallResp, ntchallResp, enRandomSessKey []byte) *AuthenticateMessage {
msg := &AuthenticateMessage{
Signature: [8]byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0x00},
MessageType: 0x00000003,
NegotiateFlags: negFlag,
}
payloadBuff := &bytes.Buffer{}
msg.LmChallengeResponseLen = uint16(len(lmchallResp))
msg.LmChallengeResponseMaxLen = msg.LmChallengeResponseLen
msg.LmChallengeResponseBufferOffset = msg.BaseLen()
payloadBuff.Write(lmchallResp)
msg.NtChallengeResponseLen = uint16(len(ntchallResp))
msg.NtChallengeResponseMaxLen = msg.NtChallengeResponseLen
msg.NtChallengeResponseBufferOffset = msg.LmChallengeResponseBufferOffset + uint32(msg.LmChallengeResponseLen)
payloadBuff.Write(ntchallResp)
msg.DomainNameLen = uint16(len(domain))
msg.DomainNameMaxLen = msg.DomainNameLen
msg.DomainNameBufferOffset = msg.NtChallengeResponseBufferOffset + uint32(msg.NtChallengeResponseLen)
payloadBuff.Write(domain)
msg.UserNameLen = uint16(len(user))
msg.UserNameMaxLen = msg.UserNameLen
msg.UserNameBufferOffset = msg.DomainNameBufferOffset + uint32(msg.DomainNameLen)
payloadBuff.Write(user)
msg.WorkstationLen = uint16(len(workstation))
msg.WorkstationMaxLen = msg.WorkstationLen
msg.WorkstationBufferOffset = msg.UserNameBufferOffset + uint32(msg.UserNameLen)
payloadBuff.Write(workstation)
msg.EncryptedRandomSessionLen = uint16(len(enRandomSessKey))
msg.EncryptedRandomSessionMaxLen = msg.EncryptedRandomSessionLen
msg.EncryptedRandomSessionBufferOffset = msg.WorkstationBufferOffset + uint32(msg.WorkstationLen)
payloadBuff.Write(enRandomSessKey)
if (msg.NegotiateFlags & NTLMSSP_NEGOTIATE_VERSION) != 0 {
msg.Version = NewNVersion()
}
msg.Payload = payloadBuff.Bytes()
return msg
}
func (m *AuthenticateMessage) Serialize() []byte {
buff := &bytes.Buffer{}
struc.Pack(buff, m)
buff.Write(m.Payload)
return buff.Bytes()
}
type NTLMv2 struct {
domain string
user string
password string
respKeyNT []byte
respKeyLM []byte
negotiateMessage *NegotiateMessage
challengeMessage *ChallengeMessage
authenticateMessage *AuthenticateMessage
enableUnicode bool
}
func NewNTLMv2(domain, user, password string) *NTLMv2 {
return &NTLMv2{
domain: domain,
user: user,
password: password,
respKeyNT: NTOWFv2(password, user, domain),
respKeyLM: LMOWFv2(password, user, domain),
}
}
// generate first handshake messgae
func (n *NTLMv2) GetNegotiateMessage() *NegotiateMessage {
negoMsg := NewNegotiateMessage()
negoMsg.NegotiateFlags = NTLMSSP_NEGOTIATE_KEY_EXCH |
NTLMSSP_NEGOTIATE_128 |
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY |
NTLMSSP_NEGOTIATE_ALWAYS_SIGN |
NTLMSSP_NEGOTIATE_NTLM |
NTLMSSP_NEGOTIATE_SEAL |
NTLMSSP_NEGOTIATE_SIGN |
NTLMSSP_REQUEST_TARGET |
NTLMSSP_NEGOTIATE_UNICODE
n.negotiateMessage = negoMsg
return n.negotiateMessage
}
// process NTLMv2 Authenticate hash
func (n *NTLMv2) ComputeResponseV2(respKeyNT, respKeyLM, serverChallenge, clientChallenge,
timestamp, serverInfo []byte) (ntChallResp, lmChallResp, SessBaseKey []byte) {
tempBuff := &bytes.Buffer{}
tempBuff.Write([]byte{0x01, 0x01}) // Responser version, HiResponser version
tempBuff.Write([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
tempBuff.Write(timestamp)
tempBuff.Write(clientChallenge)
tempBuff.Write([]byte{0x00, 0x00, 0x00, 0x00})
tempBuff.Write(serverInfo)
tempBuff.Write([]byte{0x00, 0x00, 0x00, 0x00})
ntBuf := bytes.NewBuffer(serverChallenge)
ntBuf.Write(tempBuff.Bytes())
ntProof := HMAC_MD5(respKeyNT, ntBuf.Bytes())
ntChallResp = make([]byte, 0, len(ntProof)+tempBuff.Len())
ntChallResp = append(ntChallResp, ntProof...)
ntChallResp = append(ntChallResp, tempBuff.Bytes()...)
lmBuf := bytes.NewBuffer(serverChallenge)
lmBuf.Write(clientChallenge)
lmChallResp = HMAC_MD5(respKeyLM, lmBuf.Bytes())
lmChallResp = append(lmChallResp, clientChallenge...)
SessBaseKey = HMAC_MD5(respKeyNT, ntProof)
return
}
func MIC(exportedSessionKey []byte, negotiateMessage, challengeMessage, authenticateMessage Message) []byte {
buff := bytes.Buffer{}
buff.Write(negotiateMessage.Serialize())
buff.Write(challengeMessage.Serialize())
buff.Write(authenticateMessage.Serialize())
return HMAC_MD5(exportedSessionKey, buff.Bytes())
}
func concat(bs ...[]byte) []byte {
return bytes.Join(bs, nil)
}
var (
clientSigning = concat([]byte("session key to client-to-server signing key magic constant"), []byte{0x00})
serverSigning = concat([]byte("session key to server-to-client signing key magic constant"), []byte{0x00})
clientSealing = concat([]byte("session key to client-to-server sealing key magic constant"), []byte{0x00})
serverSealing = concat([]byte("session key to server-to-client sealing key magic constant"), []byte{0x00})
)
func (n *NTLMv2) GetAuthenticateMessage(s []byte) (*AuthenticateMessage, *NTLMv2Security) {
challengeMsg := &ChallengeMessage{}
r := bytes.NewReader(s)
err := struc.Unpack(r, challengeMsg)
if err != nil {
glog.Error("read challengeMsg", err)
return nil, nil
}
if challengeMsg.NegotiateFlags&NTLMSSP_NEGOTIATE_VERSION != 0 {
version := NVersion{}
err := struc.Unpack(r, &version)
if err != nil {
glog.Error("read version", err)
return nil, nil
}
challengeMsg.Version = version
}
challengeMsg.Payload, _ = core.ReadBytes(r.Len(), r)
n.challengeMessage = challengeMsg
glog.Debugf("challengeMsg:%+v", challengeMsg)
serverName := challengeMsg.getTargetName()
serverInfo := challengeMsg.getTargetInfo()
timestamp := challengeMsg.getTargetInfoTimestamp(serverInfo)
computeMIC := false
if timestamp == nil {
ft := uint64(time.Now().UnixNano()) / 100
ft += 116444736000000000 // add time between unix & windows offset
timestamp = make([]byte, 8)
binary.LittleEndian.PutUint64(timestamp, ft)
} else {
computeMIC = true
}
glog.Infof("serverName=%+v", core.UnicodeDecode(serverName))
serverChallenge := challengeMsg.ServerChallenge[:]
clientChallenge := core.Random(8)
ntChallengeResponse, lmChallengeResponse, SessionBaseKey := n.ComputeResponseV2(
n.respKeyNT, n.respKeyLM, serverChallenge, clientChallenge, timestamp, serverInfo)
exchangeKey := SessionBaseKey
exportedSessionKey := core.Random(16)
EncryptedRandomSessionKey := make([]byte, len(exportedSessionKey))
rc, _ := rc4.NewCipher(exchangeKey)
rc.XORKeyStream(EncryptedRandomSessionKey, exportedSessionKey)
if challengeMsg.NegotiateFlags&NTLMSSP_NEGOTIATE_UNICODE != 0 {
n.enableUnicode = true
}
glog.Infof("user: %s, passwd:%s", n.user, n.password)
domain, user, _ := n.GetEncodedCredentials()
n.authenticateMessage = NewAuthenticateMessage(challengeMsg.NegotiateFlags,
domain, user, []byte(""), lmChallengeResponse, ntChallengeResponse, EncryptedRandomSessionKey)
if computeMIC {
copy(n.authenticateMessage.MIC[:], MIC(exportedSessionKey, n.negotiateMessage, n.challengeMessage, n.authenticateMessage)[:16])
}
md := md5.New()
//ClientSigningKey
a := concat(exportedSessionKey, clientSigning)
md.Write(a)
ClientSigningKey := md.Sum(nil)
//ServerSigningKey
md.Reset()
a = concat(exportedSessionKey, serverSigning)
md.Write(a)
ServerSigningKey := md.Sum(nil)
//ClientSealingKey
md.Reset()
a = concat(exportedSessionKey, clientSealing)
md.Write(a)
ClientSealingKey := md.Sum(nil)
//ServerSealingKey
md.Reset()
a = concat(exportedSessionKey, serverSealing)
md.Write(a)
ServerSealingKey := md.Sum(nil)
glog.Debugf("ClientSigningKey:%s", hex.EncodeToString(ClientSigningKey))
glog.Debugf("ServerSigningKey:%s", hex.EncodeToString(ServerSigningKey))
glog.Debugf("ClientSealingKey:%s", hex.EncodeToString(ClientSealingKey))
glog.Debugf("ServerSealingKey:%s", hex.EncodeToString(ServerSealingKey))
encryptRC4, _ := rc4.NewCipher(ClientSealingKey)
decryptRC4, _ := rc4.NewCipher(ServerSealingKey)
ntlmSec := &NTLMv2Security{encryptRC4, decryptRC4, ClientSigningKey, ServerSigningKey, 0}
return n.authenticateMessage, ntlmSec
}
func (n *NTLMv2) GetEncodedCredentials() ([]byte, []byte, []byte) {
if n.enableUnicode {
return core.UnicodeEncode(n.domain), core.UnicodeEncode(n.user), core.UnicodeEncode(n.password)
}
return []byte(n.domain), []byte(n.user), []byte(n.password)
}
type NTLMv2Security struct {
EncryptRC4 *rc4.Cipher
DecryptRC4 *rc4.Cipher
SigningKey []byte
VerifyKey []byte
SeqNum uint32
}
func (n *NTLMv2Security) GssEncrypt(s []byte) []byte {
p := make([]byte, len(s))
n.EncryptRC4.XORKeyStream(p, s)
b := &bytes.Buffer{}
//signature
core.WriteUInt32LE(n.SeqNum, b)
core.WriteBytes(s, b)
s1 := HMAC_MD5(n.SigningKey, b.Bytes())[:8]
checksum := make([]byte, 8)
n.EncryptRC4.XORKeyStream(checksum, s1)
b.Reset()
core.WriteUInt32LE(0x00000001, b)
core.WriteBytes(checksum, b)
core.WriteUInt32LE(n.SeqNum, b)
core.WriteBytes(p, b)
n.SeqNum++
return b.Bytes()
}
func (n *NTLMv2Security) GssDecrypt(s []byte) []byte {
r := bytes.NewReader(s)
core.ReadUInt32LE(r) //version
checksum, _ := core.ReadBytes(8, r)
seqNum, _ := core.ReadUInt32LE(r)
data, _ := core.ReadBytes(r.Len(), r)
p := make([]byte, len(data))
n.DecryptRC4.XORKeyStream(p, data)
check := make([]byte, len(checksum))
n.DecryptRC4.XORKeyStream(check, checksum)
b := &bytes.Buffer{}
core.WriteUInt32LE(seqNum, b)
core.WriteBytes(p, b)
verify := HMAC_MD5(n.VerifyKey, b.Bytes())
if string(verify) != string(check) {
return nil
}
return p
}
+760
View File
@@ -0,0 +1,760 @@
package pdu
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"io"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
)
type CapsType uint16
const (
CAPSTYPE_GENERAL CapsType = 0x0001
CAPSTYPE_BITMAP = 0x0002
CAPSTYPE_ORDER = 0x0003
CAPSTYPE_BITMAPCACHE = 0x0004
CAPSTYPE_CONTROL = 0x0005
CAPSTYPE_ACTIVATION = 0x0007
CAPSTYPE_POINTER = 0x0008
CAPSTYPE_SHARE = 0x0009
CAPSTYPE_COLORCACHE = 0x000A
CAPSTYPE_SOUND = 0x000C
CAPSTYPE_INPUT = 0x000D
CAPSTYPE_FONT = 0x000E
CAPSTYPE_BRUSH = 0x000F
CAPSTYPE_GLYPHCACHE = 0x0010
CAPSTYPE_OFFSCREENCACHE = 0x0011
CAPSTYPE_BITMAPCACHE_HOSTSUPPORT = 0x0012
CAPSTYPE_BITMAPCACHE_REV2 = 0x0013
CAPSTYPE_VIRTUALCHANNEL = 0x0014
CAPSTYPE_DRAWNINEGRIDCACHE = 0x0015
CAPSTYPE_DRAWGDIPLUS = 0x0016
CAPSTYPE_RAIL = 0x0017
CAPSTYPE_WINDOW = 0x0018
CAPSETTYPE_COMPDESK = 0x0019
CAPSETTYPE_MULTIFRAGMENTUPDATE = 0x001A
CAPSETTYPE_LARGE_POINTER = 0x001B
CAPSETTYPE_SURFACE_COMMANDS = 0x001C
CAPSETTYPE_BITMAP_CODECS = 0x001D
CAPSSETTYPE_FRAME_ACKNOWLEDGE = 0x001E
)
func (c CapsType) String() string {
switch c {
case CAPSTYPE_GENERAL:
return "CAPSTYPE_GENERAL"
case CAPSTYPE_BITMAP:
return "CAPSTYPE_BITMAP"
case CAPSTYPE_ORDER:
return "CAPSTYPE_ORDER"
case CAPSTYPE_BITMAPCACHE:
return "CAPSTYPE_BITMAPCACHE"
case CAPSTYPE_CONTROL:
return "CAPSTYPE_CONTROL"
case CAPSTYPE_ACTIVATION:
return "CAPSTYPE_ACTIVATION"
case CAPSTYPE_POINTER:
return "CAPSTYPE_POINTER"
case CAPSTYPE_SHARE:
return "CAPSTYPE_SHARE"
case CAPSTYPE_COLORCACHE:
return "CAPSTYPE_COLORCACHE"
case CAPSTYPE_SOUND:
return "CAPSTYPE_SOUND"
case CAPSTYPE_INPUT:
return "CAPSTYPE_INPUT"
case CAPSTYPE_FONT:
return "CAPSTYPE_FONT"
case CAPSTYPE_BRUSH:
return "CAPSTYPE_BRUSH"
case CAPSTYPE_GLYPHCACHE:
return "CAPSTYPE_GLYPHCACHE"
case CAPSTYPE_OFFSCREENCACHE:
return "CAPSTYPE_OFFSCREENCACHE"
case CAPSTYPE_BITMAPCACHE_HOSTSUPPORT:
return "CAPSTYPE_BITMAPCACHE_HOSTSUPPORT"
case CAPSTYPE_BITMAPCACHE_REV2:
return "CAPSTYPE_BITMAPCACHE_REV2"
case CAPSTYPE_VIRTUALCHANNEL:
return "CAPSTYPE_VIRTUALCHANNEL"
case CAPSTYPE_DRAWNINEGRIDCACHE:
return "CAPSTYPE_DRAWNINEGRIDCACHE"
case CAPSTYPE_DRAWGDIPLUS:
return "CAPSTYPE_DRAWGDIPLUS"
case CAPSTYPE_RAIL:
return "CAPSTYPE_RAIL"
case CAPSTYPE_WINDOW:
return "CAPSTYPE_WINDOW"
case CAPSETTYPE_COMPDESK:
return "CAPSETTYPE_COMPDESK"
case CAPSETTYPE_MULTIFRAGMENTUPDATE:
return "CAPSETTYPE_MULTIFRAGMENTUPDATE"
case CAPSETTYPE_LARGE_POINTER:
return "CAPSETTYPE_LARGE_POINTER"
case CAPSETTYPE_SURFACE_COMMANDS:
return "CAPSETTYPE_SURFACE_COMMANDS"
case CAPSETTYPE_BITMAP_CODECS:
return "CAPSETTYPE_BITMAP_CODECS"
case CAPSSETTYPE_FRAME_ACKNOWLEDGE:
return "CAPSSETTYPE_FRAME_ACKNOWLEDGE"
}
return "Unknown"
}
type MajorType uint16
const (
OSMAJORTYPE_UNSPECIFIED MajorType = 0x0000
OSMAJORTYPE_WINDOWS = 0x0001
OSMAJORTYPE_OS2 = 0x0002
OSMAJORTYPE_MACINTOSH = 0x0003
OSMAJORTYPE_UNIX = 0x0004
OSMAJORTYPE_IOS = 0x0005
OSMAJORTYPE_OSX = 0x0006
OSMAJORTYPE_ANDROID = 0x0007
)
type MinorType uint16
const (
OSMINORTYPE_UNSPECIFIED MinorType = 0x0000
OSMINORTYPE_WINDOWS_31X = 0x0001
OSMINORTYPE_WINDOWS_95 = 0x0002
OSMINORTYPE_WINDOWS_NT = 0x0003
OSMINORTYPE_OS2_V21 = 0x0004
OSMINORTYPE_POWER_PC = 0x0005
OSMINORTYPE_MACINTOSH = 0x0006
OSMINORTYPE_NATIVE_XSERVER = 0x0007
OSMINORTYPE_PSEUDO_XSERVER = 0x0008
OSMINORTYPE_WINDOWS_RT = 0x0009
)
const (
FASTPATH_OUTPUT_SUPPORTED uint16 = 0x0001
NO_BITMAP_COMPRESSION_HDR = 0x0400
LONG_CREDENTIALS_SUPPORTED = 0x0004
AUTORECONNECT_SUPPORTED = 0x0008
ENC_SALTED_CHECKSUM = 0x0010
)
type OrderFlag uint16
const (
NEGOTIATEORDERSUPPORT OrderFlag = 0x0002
ZEROBOUNDSDELTASSUPPORT = 0x0008
COLORINDEXSUPPORT = 0x0020
SOLIDPATTERNBRUSHONLY = 0x0040
ORDERFLAGS_EXTRA_FLAGS = 0x0080
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240556.aspx
*/
type Order uint8
const (
TS_NEG_DSTBLT_INDEX Order = 0x00
TS_NEG_PATBLT_INDEX = 0x01
TS_NEG_SCRBLT_INDEX = 0x02
TS_NEG_MEMBLT_INDEX = 0x03
TS_NEG_MEM3BLT_INDEX = 0x04
TS_NEG_DRAWNINEGRID_INDEX = 0x07
TS_NEG_LINETO_INDEX = 0x08
TS_NEG_MULTI_DRAWNINEGRID_INDEX = 0x09
TS_NEG_SAVEBITMAP_INDEX = 0x0B
TS_NEG_MULTIDSTBLT_INDEX = 0x0F
TS_NEG_MULTIPATBLT_INDEX = 0x10
TS_NEG_MULTISCRBLT_INDEX = 0x11
TS_NEG_MULTIOPAQUERECT_INDEX = 0x12
TS_NEG_FAST_INDEX_INDEX = 0x13
TS_NEG_POLYGON_SC_INDEX = 0x14
TS_NEG_POLYGON_CB_INDEX = 0x15
TS_NEG_POLYLINE_INDEX = 0x16
TS_NEG_FAST_GLYPH_INDEX = 0x18
TS_NEG_ELLIPSE_SC_INDEX = 0x19
TS_NEG_ELLIPSE_CB_INDEX = 0x1A
TS_NEG_GLYPH_INDEX_INDEX = 0x1B
)
type OrderEx uint16
const (
ORDERFLAGS_EX_CACHE_BITMAP_REV3_SUPPORT OrderEx = 0x0002
ORDERFLAGS_EX_ALTSEC_FRAME_MARKER_SUPPORT = 0x0004
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240563.aspx
*/
const (
INPUT_FLAG_SCANCODES uint16 = 0x0001
INPUT_FLAG_MOUSEX = 0x0004
INPUT_FLAG_FASTPATH_INPUT = 0x0008
INPUT_FLAG_UNICODE = 0x0010
INPUT_FLAG_FASTPATH_INPUT2 = 0x0020
INPUT_FLAG_UNUSED1 = 0x0040
INPUT_FLAG_UNUSED2 = 0x0080
INPUT_FLAG_MOUSE_HWHEEL = 0x0100
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240564.aspx
*/
type BrushSupport uint32
const (
BRUSH_DEFAULT BrushSupport = 0x00000000
BRUSH_COLOR_8x8 = 0x00000001
BRUSH_COLOR_FULL = 0x00000002
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240565.aspx
*/
type GlyphSupport uint16
const (
GLYPH_SUPPORT_NONE GlyphSupport = 0x0000
GLYPH_SUPPORT_PARTIAL = 0x0001
GLYPH_SUPPORT_FULL = 0x0002
GLYPH_SUPPORT_ENCODE = 0x0003
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240550.aspx
*/
type OffscreenSupportLevel uint32
const (
OSL_FALSE OffscreenSupportLevel = 0x00000000
OSL_TRUE = 0x00000001
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240551.aspx
*/
type VirtualChannelCompressionFlag uint32
const (
VCCAPS_NO_COMPR VirtualChannelCompressionFlag = 0x00000000
VCCAPS_COMPR_SC = 0x00000001
VCCAPS_COMPR_CS_8K = 0x00000002
)
type SoundFlag uint16
const (
SOUND_NONE SoundFlag = 0x0000
SOUND_BEEPS_FLAG = 0x0001
)
type RailsupportLevel uint32
const (
RAIL_LEVEL_SUPPORTED = 0x00000001
RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED = 0x00000002
RAIL_LEVEL_SHELL_INTEGRATION_SUPPORTED = 0x00000004
RAIL_LEVEL_LANGUAGE_IME_SYNC_SUPPORTED = 0x00000008
RAIL_LEVEL_SERVER_TO_CLIENT_IME_SYNC_SUPPORTED = 0x00000010
RAIL_LEVEL_HIDE_MINIMIZED_APPS_SUPPORTED = 0x00000020
RAIL_LEVEL_WINDOW_CLOAKING_SUPPORTED = 0x00000040
RAIL_LEVEL_HANDSHAKE_EX_SUPPORTED = 0x00000080
)
const (
INPUT_EVENT_SYNC = 0x0000
INPUT_EVENT_UNUSED = 0x0002
INPUT_EVENT_SCANCODE = 0x0004
INPUT_EVENT_UNICODE = 0x0005
INPUT_EVENT_MOUSE = 0x8001
INPUT_EVENT_MOUSEX = 0x8002
)
const (
PTRFLAGS_HWHEEL = 0x0400
PTRFLAGS_WHEEL = 0x0200
PTRFLAGS_WHEEL_NEGATIVE = 0x0100
WheelRotationMask = 0x01FF
PTRFLAGS_MOVE = 0x0800
PTRFLAGS_DOWN = 0x8000
PTRFLAGS_BUTTON1 = 0x1000
PTRFLAGS_BUTTON2 = 0x2000
PTRFLAGS_BUTTON3 = 0x4000
)
const (
KBDFLAGS_EXTENDED = 0x0100
KBDFLAGS_DOWN = 0x4000
KBDFLAGS_RELEASE = 0x8000
)
type SurfaceCmdFlags uint32
const (
SURFCMDS_SET_SURFACE_BITS = 0x00000002
SURFCMDS_FRAME_MARKER = 0x00000010
SURFCMDS_STREAM_SURFACE_BITS = 0x00000040
)
type Capability interface {
Type() CapsType
}
type GeneralCapability struct {
// 010018000100030000020000000015040000000000000000
OSMajorType MajorType `struc:"little"`
OSMinorType MinorType `struc:"little"`
ProtocolVersion uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
GeneralCompressionTypes uint16 `struc:"little"`
ExtraFlags uint16 `struc:"little"`
UpdateCapabilityFlag uint16 `struc:"little"`
RemoteUnshareFlag uint16 `struc:"little"`
GeneralCompressionLevel uint16 `struc:"little"`
RefreshRectSupport uint8 `struc:"little"`
SuppressOutputSupport uint8 `struc:"little"`
}
func (*GeneralCapability) Type() CapsType {
return CAPSTYPE_GENERAL
}
type BitmapCapability struct {
// 02001c00180001000100010000052003000000000100000001000000
PreferredBitsPerPixel gcc.HighColor `struc:"little"`
Receive1BitPerPixel uint16 `struc:"little"`
Receive4BitsPerPixel uint16 `struc:"little"`
Receive8BitsPerPixel uint16 `struc:"little"`
DesktopWidth uint16 `struc:"little"`
DesktopHeight uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
DesktopResizeFlag uint16 `struc:"little"`
BitmapCompressionFlag uint16 `struc:"little"`
HighColorFlags uint8 `struc:"little"`
DrawingFlags uint8 `struc:"little"`
MultipleRectangleSupport uint16 `struc:"little"`
Pad2octetsB uint16 `struc:"little"`
}
func (*BitmapCapability) Type() CapsType {
return CAPSTYPE_BITMAP
}
type BitmapCacheCapability struct {
// 04002800000000000000000000000000000000000000000000000000000000000000000000000000
Pad1 uint32 `struc:"little"`
Pad2 uint32 `struc:"little"`
Pad3 uint32 `struc:"little"`
Pad4 uint32 `struc:"little"`
Pad5 uint32 `struc:"little"`
Pad6 uint32 `struc:"little"`
Cache0Entries uint16 `struc:"little"`
Cache0MaximumCellSize uint16 `struc:"little"`
Cache1Entries uint16 `struc:"little"`
Cache1MaximumCellSize uint16 `struc:"little"`
Cache2Entries uint16 `struc:"little"`
Cache2MaximumCellSize uint16 `struc:"little"`
}
func (*BitmapCacheCapability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE
}
type OrderCapability struct {
// 030058000000000000000000000000000000000000000000010014000000010000000a0000000000000000000000000000000000000000000000000000000000000000000000000000000000008403000000000000000000
TerminalDescriptor [16]byte
Pad4octetsA uint32 `struc:"little"`
DesktopSaveXGranularity uint16 `struc:"little"`
DesktopSaveYGranularity uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
MaximumOrderLevel uint16 `struc:"little"`
NumberFonts uint16 `struc:"little"`
OrderFlags OrderFlag `struc:"little"`
OrderSupport [32]byte
TextFlags uint16 `struc:"little"`
OrderSupportExFlags uint16 `struc:"little"`
Pad4octetsB uint32 `struc:"little"`
DesktopSaveSize uint32 `struc:"little"`
Pad2octetsC uint16 `struc:"little"`
Pad2octetsD uint16 `struc:"little"`
TextANSICodePage uint16 `struc:"little"`
Pad2octetsE uint16 `struc:"little"`
}
func (*OrderCapability) Type() CapsType {
return CAPSTYPE_ORDER
}
type PointerCapability struct {
ColorPointerFlag uint16 `struc:"little"`
ColorPointerCacheSize uint16 `struc:"little"`
// old version of rdp doesn't support ...
PointerCacheSize uint16 `struc:"little"` // only server need
}
func (*PointerCapability) Type() CapsType {
return CAPSTYPE_POINTER
}
type InputCapability struct {
// 0d005c001500000009040000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c000000
Flags uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
// same value as gcc.ClientCoreSettings.kbdLayout
KeyboardLayout gcc.KeyboardLayout `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardType
KeyboardType uint32 `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardSubType
KeyboardSubType uint32 `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardFnKeys
KeyboardFunctionKey uint32 `struc:"little"`
// same value as gcc.ClientCoreSettingrrs.imeFileName
ImeFileName [64]byte
//need add 0c000000 in the end
}
func (*InputCapability) Type() CapsType {
return CAPSTYPE_INPUT
}
type BrushCapability struct {
// 0f00080000000000
SupportLevel BrushSupport `struc:"little"`
}
func (*BrushCapability) Type() CapsType {
return CAPSTYPE_BRUSH
}
type cacheEntry struct {
Entries uint16 `struc:"little"`
MaximumCellSize uint16 `struc:"little"`
}
type GlyphCapability struct {
// 10003400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
GlyphCache [10]cacheEntry `struc:"little"`
FragCache uint32 `struc:"little"`
SupportLevel GlyphSupport `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*GlyphCapability) Type() CapsType {
return CAPSTYPE_GLYPHCACHE
}
type OffscreenBitmapCacheCapability struct {
// 11000c000000000000000000
SupportLevel OffscreenSupportLevel `struc:"little"`
CacheSize uint16 `struc:"little"`
CacheEntries uint16 `struc:"little"`
}
func (*OffscreenBitmapCacheCapability) Type() CapsType {
return CAPSTYPE_OFFSCREENCACHE
}
type BitmapCache2Capability struct {
BitmapCachePersist uint16 `struc:"little"`
Pad2octets uint8 `struc:"little"`
CachesNum uint8 `struc:"little"`
BmpC0Cells uint32 `struc:"little"`
BmpC1Cells uint32 `struc:"little"`
BmpC2Cells uint32 `struc:"little"`
BmpC3Cells uint32 `struc:"little"`
BmpC4Cells uint32 `struc:"little"`
Pad2octets1 [12]byte `struc:"little"`
}
func (*BitmapCache2Capability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE_REV2
}
type VirtualChannelCapability struct {
// 14000c000000000000000000
Flags VirtualChannelCompressionFlag `struc:"little"`
VCChunkSize uint32 `struc:"little"` // optional
}
func (*VirtualChannelCapability) Type() CapsType {
return CAPSTYPE_VIRTUALCHANNEL
}
type SoundCapability struct {
// 0c00080000000000
Flags SoundFlag `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*SoundCapability) Type() CapsType {
return CAPSTYPE_SOUND
}
type ControlCapability struct {
ControlFlags uint16 `struc:"little"`
RemoteDetachFlag uint16 `struc:"little"`
ControlInterest uint16 `struc:"little"`
DetachInterest uint16 `struc:"little"`
}
func (*ControlCapability) Type() CapsType {
return CAPSTYPE_CONTROL
}
type WindowActivationCapability struct {
HelpKeyFlag uint16 `struc:"little"`
HelpKeyIndexFlag uint16 `struc:"little"`
HelpExtendedKeyFlag uint16 `struc:"little"`
WindowManagerKeyFlag uint16 `struc:"little"`
}
func (*WindowActivationCapability) Type() CapsType {
return CAPSTYPE_ACTIVATION
}
type FontCapability struct {
SupportFlags uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*FontCapability) Type() CapsType {
return CAPSTYPE_FONT
}
type ColorCacheCapability struct {
CacheSize uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*ColorCacheCapability) Type() CapsType {
return CAPSTYPE_COLORCACHE
}
type ShareCapability struct {
NodeId uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*ShareCapability) Type() CapsType {
return CAPSTYPE_SHARE
}
type MultiFragmentUpdate struct {
// 1a00080000000000
MaxRequestSize uint32 `struc:"little"`
}
func (*MultiFragmentUpdate) Type() CapsType {
return CAPSETTYPE_MULTIFRAGMENTUPDATE
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpegdi/52635737-d144-4f47-9c88-b48ceaf3efb4
type DrawGDIPlusCapability struct {
SupportLevel uint32
GdipVersion uint32
CacheLevel uint32
GdipCacheEntries [10]byte
GdipCacheChunkSize [8]byte
GdipImageCacheProperties [6]byte
}
func (*DrawGDIPlusCapability) Type() CapsType {
return CAPSTYPE_DRAWGDIPLUS
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/86507fed-a0ee-4242-b802-237534a8f65e
type BitmapCodec struct {
GUID [16]byte
ID uint8
PropertiesLength uint16 `struc:"little,sizeof=Properties"`
Properties []byte
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/408b1878-9f6e-4106-8329-1af42219ba6a
type BitmapCodecS struct {
Count uint8 `struc:"sizeof=Array"`
Array []BitmapCodec
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/17e80f50-d163-49de-a23b-fd6456aa472f
type BitmapCodecsCapability struct {
SupportedBitmapCodecs BitmapCodecS // A variable-length field containing a TS_BITMAPCODECS structure (section 2.2.7.2.10.1).
}
func (*BitmapCodecsCapability) Type() CapsType {
return CAPSETTYPE_BITMAP_CODECS
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/fc05c385-46c3-42cb-9ed2-c475a3990e0b
type BitmapCacheHostSupportCapability struct {
CacheVersion uint8
Pad1 uint8
Pad2 uint16
}
func (*BitmapCacheHostSupportCapability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE_HOSTSUPPORT
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/41323437-c753-460e-8108-495a6fdd68a8
type LargePointerCapability struct {
SupportFlags uint16 `struc:"little"`
}
func (*LargePointerCapability) Type() CapsType {
return CAPSETTYPE_LARGE_POINTER
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdperp/36a25e21-25e1-4954-aae8-09aaf6715c79
type RemoteProgramsCapability struct {
RailSupportLevel uint32 `struc:"little"`
}
func (*RemoteProgramsCapability) Type() CapsType {
return CAPSTYPE_RAIL
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdperp/82ec7a69-f7e3-4294-830d-666178b35d15
type WindowListCapability struct {
WndSupportLevel uint32 `struc:"little"`
NumIconCaches uint8
NumIconCacheEntries uint16 `struc:"little"`
}
func (*WindowListCapability) Type() CapsType {
return CAPSTYPE_WINDOW
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/9132002f-f133-4a0f-ba2f-2dc48f1e7f93
type DesktopCompositionCapability struct {
CompDeskSupportLevel uint16 `struc:"little"`
}
func (*DesktopCompositionCapability) Type() CapsType {
return CAPSETTYPE_COMPDESK
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/aa953018-c0a8-4761-bb12-86586c2cd56a
type SurfaceCommandsCapability struct {
CmdFlags uint32 `struc:"little"`
Reserved uint32 `struc:"little"`
}
func (*SurfaceCommandsCapability) Type() CapsType {
return CAPSETTYPE_SURFACE_COMMANDS
}
type FrameAcknowledgeCapability struct {
FrameCount uint32 `struc:"little"`
}
func (*FrameAcknowledgeCapability) Type() CapsType {
return CAPSSETTYPE_FRAME_ACKNOWLEDGE
}
type DrawNineGridCapability struct {
SupportLevel uint32 `struc:"little"`
CacheSize uint16 `struc:"little"`
CacheEntries uint16 `struc:"little"`
}
func (*DrawNineGridCapability) Type() CapsType {
return CAPSTYPE_DRAWNINEGRIDCACHE
}
func readCapability(r io.Reader) (Capability, error) {
capType, err := core.ReadUint16LE(r)
if err != nil {
return nil, err
}
capLen, err := core.ReadUint16LE(r)
if err != nil {
return nil, err
}
if int(capLen)-4 <= 0 {
return nil, errors.New(fmt.Sprintf("Capability length expected %d", capLen))
}
capBytes, err := core.ReadBytes(int(capLen)-4, r)
if err != nil {
return nil, err
}
capReader := bytes.NewReader(capBytes)
var c Capability
glog.Debugf("Capability type 0x%04x", capType)
switch CapsType(capType) {
case CAPSTYPE_GENERAL:
c = &GeneralCapability{}
case CAPSTYPE_BITMAP:
c = &BitmapCapability{}
case CAPSTYPE_ORDER:
c = &OrderCapability{}
case CAPSTYPE_BITMAPCACHE:
c = &BitmapCacheCapability{}
case CAPSTYPE_POINTER:
c = &PointerCapability{}
case CAPSTYPE_INPUT:
c = &InputCapability{}
case CAPSTYPE_BRUSH:
c = &BrushCapability{}
case CAPSTYPE_GLYPHCACHE:
c = &GlyphCapability{}
case CAPSTYPE_OFFSCREENCACHE:
c = &OffscreenBitmapCacheCapability{}
case CAPSTYPE_VIRTUALCHANNEL:
c = &VirtualChannelCapability{}
case CAPSTYPE_SOUND:
c = &SoundCapability{}
case CAPSTYPE_CONTROL:
c = &ControlCapability{}
case CAPSTYPE_ACTIVATION:
c = &WindowActivationCapability{}
case CAPSTYPE_FONT:
c = &FontCapability{}
case CAPSTYPE_COLORCACHE:
c = &ColorCacheCapability{}
case CAPSTYPE_SHARE:
c = &ShareCapability{}
case CAPSETTYPE_MULTIFRAGMENTUPDATE:
c = &MultiFragmentUpdate{}
case CAPSTYPE_DRAWGDIPLUS:
c = &DrawGDIPlusCapability{}
case CAPSETTYPE_BITMAP_CODECS:
c = &BitmapCodecsCapability{}
case CAPSTYPE_BITMAPCACHE_HOSTSUPPORT:
c = &BitmapCacheHostSupportCapability{}
case CAPSETTYPE_LARGE_POINTER:
c = &LargePointerCapability{}
case CAPSTYPE_RAIL:
c = &RemoteProgramsCapability{}
case CAPSTYPE_WINDOW:
c = &WindowListCapability{}
case CAPSETTYPE_COMPDESK:
c = &DesktopCompositionCapability{}
case CAPSETTYPE_SURFACE_COMMANDS:
c = &SurfaceCommandsCapability{}
case CAPSSETTYPE_FRAME_ACKNOWLEDGE:
c = &FrameAcknowledgeCapability{}
default:
err := errors.New(fmt.Sprintf("unsupported Capability type 0x%04x", capType))
glog.Error(err)
return nil, err
}
if err := struc.Unpack(capReader, c); err != nil {
glog.Error("Capability unpack error", err, fmt.Sprintf("0x%04x", capType), hex.EncodeToString(capBytes))
return nil, err
}
glog.Debugf("Capability<%s>: %+v", c.Type(), c)
return c, nil
}
File diff suppressed because it is too large Load Diff
+465
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@@ -0,0 +1,465 @@
package pdu
import (
"bytes"
"encoding/hex"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
)
type PDULayer struct {
emission.Emitter
transport core.Transport
sharedId uint32
userId uint16
channelId uint16
serverCapabilities map[CapsType]Capability
clientCapabilities map[CapsType]Capability
fastPathSender core.FastPathSender
demandActivePDU *DemandActivePDU
}
func NewPDULayer(t core.Transport) *PDULayer {
p := &PDULayer{
Emitter: *emission.NewEmitter(),
transport: t,
sharedId: 0x103EA,
serverCapabilities: map[CapsType]Capability{
CAPSTYPE_GENERAL: &GeneralCapability{
ProtocolVersion: 0x0200,
},
CAPSTYPE_BITMAP: &BitmapCapability{
Receive1BitPerPixel: 0x0001,
Receive4BitsPerPixel: 0x0001,
Receive8BitsPerPixel: 0x0001,
BitmapCompressionFlag: 0x0001,
MultipleRectangleSupport: 0x0001,
},
CAPSTYPE_ORDER: &OrderCapability{
DesktopSaveXGranularity: 1,
DesktopSaveYGranularity: 20,
MaximumOrderLevel: 1,
OrderFlags: NEGOTIATEORDERSUPPORT,
DesktopSaveSize: 480 * 480,
},
CAPSTYPE_POINTER: &PointerCapability{ColorPointerCacheSize: 20},
CAPSTYPE_INPUT: &InputCapability{},
CAPSTYPE_VIRTUALCHANNEL: &VirtualChannelCapability{},
CAPSTYPE_FONT: &FontCapability{SupportFlags: 0x0001},
CAPSTYPE_COLORCACHE: &ColorCacheCapability{CacheSize: 0x0006},
CAPSTYPE_SHARE: &ShareCapability{},
},
clientCapabilities: map[CapsType]Capability{
CAPSTYPE_GENERAL: &GeneralCapability{
ProtocolVersion: 0x0200,
},
CAPSTYPE_BITMAP: &BitmapCapability{
Receive1BitPerPixel: 0x0001,
Receive4BitsPerPixel: 0x0001,
Receive8BitsPerPixel: 0x0001,
BitmapCompressionFlag: 0x0001,
MultipleRectangleSupport: 0x0001,
},
CAPSTYPE_ORDER: &OrderCapability{
DesktopSaveXGranularity: 1,
DesktopSaveYGranularity: 20,
MaximumOrderLevel: 1,
OrderFlags: NEGOTIATEORDERSUPPORT,
DesktopSaveSize: 480 * 480,
TextANSICodePage: 0x4e4,
},
CAPSTYPE_CONTROL: &ControlCapability{0, 0, 2, 2},
CAPSTYPE_ACTIVATION: &WindowActivationCapability{},
CAPSTYPE_POINTER: &PointerCapability{1, 20, 20},
CAPSTYPE_SHARE: &ShareCapability{},
CAPSTYPE_COLORCACHE: &ColorCacheCapability{6, 0},
CAPSTYPE_SOUND: &SoundCapability{0x0001, 0},
CAPSTYPE_INPUT: &InputCapability{},
CAPSTYPE_FONT: &FontCapability{0x0001, 0},
CAPSTYPE_BRUSH: &BrushCapability{BRUSH_COLOR_8x8},
CAPSTYPE_GLYPHCACHE: &GlyphCapability{},
CAPSETTYPE_BITMAP_CODECS: &BitmapCodecsCapability{},
CAPSTYPE_BITMAPCACHE_REV2: &BitmapCache2Capability{
BitmapCachePersist: 2,
CachesNum: 5,
BmpC0Cells: 0x258,
BmpC1Cells: 0x258,
BmpC2Cells: 0x800,
BmpC3Cells: 0x1000,
BmpC4Cells: 0x800,
},
CAPSTYPE_VIRTUALCHANNEL: &VirtualChannelCapability{0, 1600},
CAPSETTYPE_MULTIFRAGMENTUPDATE: &MultiFragmentUpdate{65535},
CAPSTYPE_RAIL: &RemoteProgramsCapability{
RailSupportLevel: RAIL_LEVEL_SUPPORTED |
RAIL_LEVEL_SHELL_INTEGRATION_SUPPORTED |
RAIL_LEVEL_LANGUAGE_IME_SYNC_SUPPORTED |
RAIL_LEVEL_SERVER_TO_CLIENT_IME_SYNC_SUPPORTED |
RAIL_LEVEL_HIDE_MINIMIZED_APPS_SUPPORTED |
RAIL_LEVEL_WINDOW_CLOAKING_SUPPORTED |
RAIL_LEVEL_HANDSHAKE_EX_SUPPORTED |
RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED,
},
CAPSETTYPE_LARGE_POINTER: &LargePointerCapability{1},
CAPSETTYPE_SURFACE_COMMANDS: &SurfaceCommandsCapability{
CmdFlags: SURFCMDS_SET_SURFACE_BITS | SURFCMDS_STREAM_SURFACE_BITS | SURFCMDS_FRAME_MARKER,
},
CAPSSETTYPE_FRAME_ACKNOWLEDGE: &FrameAcknowledgeCapability{2},
},
}
t.On("close", func() {
p.Emit("close")
}).On("error", func(err error) {
p.Emit("error", err)
})
return p
}
func (p *PDULayer) sendPDU(message PDUMessage) {
pdu := NewPDU(p.userId, message)
p.transport.Write(pdu.serialize())
}
func (p *PDULayer) sendDataPDU(message DataPDUData) {
dataPdu := NewDataPDU(message, p.sharedId)
p.sendPDU(dataPdu)
}
func (p *PDULayer) SetFastPathSender(f core.FastPathSender) {
p.fastPathSender = f
}
type Client struct {
*PDULayer
clientCoreData *gcc.ClientCoreData
buff *bytes.Buffer
}
func NewClient(t core.Transport) *Client {
c := &Client{
PDULayer: NewPDULayer(t),
buff: &bytes.Buffer{},
}
c.transport.Once("connect", c.connect)
return c
}
func (c *Client) connect(data *gcc.ClientCoreData, userId uint16, channelId uint16) {
glog.Debug("pdu connect:", userId, ",", channelId)
c.clientCoreData = data
c.userId = userId
c.channelId = channelId
c.transport.Once("data", c.recvDemandActivePDU)
}
func (c *Client) recvDemandActivePDU(s []byte) {
glog.Trace("PDU recvDemandActivePDU", hex.EncodeToString(s))
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
if pdu.ShareCtrlHeader.PDUType != PDUTYPE_DEMANDACTIVEPDU {
glog.Info("PDU ignore message during connection sequence, type is", pdu.ShareCtrlHeader.PDUType)
c.transport.Once("data", c.recvDemandActivePDU)
return
}
c.sharedId = pdu.Message.(*DemandActivePDU).SharedId
c.demandActivePDU = pdu.Message.(*DemandActivePDU)
for _, caps := range c.demandActivePDU.CapabilitySets {
glog.Debugf("serverCapabilities<%s>: %+v", caps.Type(), caps)
c.serverCapabilities[caps.Type()] = caps
}
c.sendConfirmActivePDU()
c.sendClientFinalizeSynchronizePDU()
c.transport.Once("data", c.recvServerSynchronizePDU)
}
func (c *Client) sendConfirmActivePDU() {
glog.Debug("PDU start sendConfirmActivePDU")
pdu := NewConfirmActivePDU()
generalCapa := c.clientCapabilities[CAPSTYPE_GENERAL].(*GeneralCapability)
generalCapa.OSMajorType = OSMAJORTYPE_WINDOWS
generalCapa.OSMinorType = OSMINORTYPE_WINDOWS_NT
generalCapa.ExtraFlags = LONG_CREDENTIALS_SUPPORTED | NO_BITMAP_COMPRESSION_HDR |
FASTPATH_OUTPUT_SUPPORTED | AUTORECONNECT_SUPPORTED
generalCapa.RefreshRectSupport = 0
generalCapa.SuppressOutputSupport = 0
bitmapCapa := c.clientCapabilities[CAPSTYPE_BITMAP].(*BitmapCapability)
bitmapCapa.PreferredBitsPerPixel = c.clientCoreData.HighColorDepth
bitmapCapa.DesktopWidth = c.clientCoreData.DesktopWidth
bitmapCapa.DesktopHeight = c.clientCoreData.DesktopHeight
bitmapCapa.DesktopResizeFlag = 0x0001
orderCapa := c.clientCapabilities[CAPSTYPE_ORDER].(*OrderCapability)
orderCapa.OrderFlags = NEGOTIATEORDERSUPPORT | ZEROBOUNDSDELTASSUPPORT | COLORINDEXSUPPORT | ORDERFLAGS_EXTRA_FLAGS
orderCapa.OrderSupportExFlags |= ORDERFLAGS_EX_ALTSEC_FRAME_MARKER_SUPPORT
orderCapa.OrderSupport[TS_NEG_DSTBLT_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_PATBLT_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_SCRBLT_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_LINETO_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_MEMBLT_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_MEM3BLT_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_POLYLINE_INDEX] = 1
/*orderCapa.OrderSupport[TS_NEG_MULTIOPAQUERECT_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_GLYPH_INDEX_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_DRAWNINEGRID_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_SAVEBITMAP_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_POLYGON_SC_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_POLYGON_CB_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_ELLIPSE_SC_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_ELLIPSE_CB_INDEX] = 1*/
orderCapa.OrderSupport[TS_NEG_FAST_GLYPH_INDEX] = 1
inputCapa := c.clientCapabilities[CAPSTYPE_INPUT].(*InputCapability)
inputCapa.Flags = INPUT_FLAG_SCANCODES | INPUT_FLAG_MOUSEX | INPUT_FLAG_UNICODE
inputCapa.KeyboardLayout = c.clientCoreData.KbdLayout
inputCapa.KeyboardType = c.clientCoreData.KeyboardType
inputCapa.KeyboardSubType = c.clientCoreData.KeyboardSubType
inputCapa.KeyboardFunctionKey = c.clientCoreData.KeyboardFnKeys
inputCapa.ImeFileName = c.clientCoreData.ImeFileName
glyphCapa := c.clientCapabilities[CAPSTYPE_GLYPHCACHE].(*GlyphCapability)
/*glyphCapa.GlyphCache[0] = cacheEntry{254, 4}
glyphCapa.GlyphCache[1] = cacheEntry{254, 4}
glyphCapa.GlyphCache[2] = cacheEntry{254, 8}
glyphCapa.GlyphCache[3] = cacheEntry{254, 8}
glyphCapa.GlyphCache[4] = cacheEntry{254, 16}
glyphCapa.GlyphCache[5] = cacheEntry{254, 32}
glyphCapa.GlyphCache[6] = cacheEntry{254, 64}
glyphCapa.GlyphCache[7] = cacheEntry{254, 128}
glyphCapa.GlyphCache[8] = cacheEntry{254, 256}
glyphCapa.GlyphCache[9] = cacheEntry{64, 2048}
glyphCapa.FragCache = 0x01000100*/
glyphCapa.SupportLevel = GLYPH_SUPPORT_NONE
pdu.SharedId = c.sharedId
for _, v := range c.clientCapabilities {
glog.Debugf("clientCapabilities<%s>: %+v", v.Type(), v)
pdu.CapabilitySets = append(pdu.CapabilitySets, v)
}
pdu.NumberCapabilities = uint16(len(pdu.CapabilitySets))
pdu.LengthSourceDescriptor = c.demandActivePDU.LengthSourceDescriptor
pdu.SourceDescriptor = c.demandActivePDU.SourceDescriptor
pdu.LengthCombinedCapabilities = c.demandActivePDU.LengthCombinedCapabilities
c.sendPDU(pdu)
}
func (c *Client) sendClientFinalizeSynchronizePDU() {
glog.Debug("PDU start sendClientFinalizeSynchronizePDU")
c.sendDataPDU(NewSynchronizeDataPDU(c.channelId))
c.sendDataPDU(&ControlDataPDU{Action: CTRLACTION_COOPERATE})
c.sendDataPDU(&ControlDataPDU{Action: CTRLACTION_REQUEST_CONTROL})
//c.sendDataPDU(&PersistKeyPDU{BBitMask: 0x03})
c.sendDataPDU(&FontListDataPDU{ListFlags: 0x0003, EntrySize: 0x0032})
}
func (c *Client) recvServerSynchronizePDU(s []byte) {
glog.Debug("PDU recvServerSynchronizePDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_SYNCHRONIZE {
if ok {
glog.Error("recvServerSynchronizePDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerSynchronizePDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
glog.Infof("%+v", dataPdu)
c.transport.Once("data", c.recvServerSynchronizePDU)
return
}
c.transport.Once("data", c.recvServerControlCooperatePDU)
}
func (c *Client) recvServerControlCooperatePDU(s []byte) {
glog.Debug("PDU recvServerControlCooperatePDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_CONTROL {
if ok {
glog.Error("recvServerControlCooperatePDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerControlCooperatePDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
c.transport.Once("data", c.recvServerControlCooperatePDU)
return
}
glog.Debugf("-------------PDUType2 = %02x\n", dataPdu.Header.PDUType2)
if dataPdu.Header.PDUType2 == PDUTYPE2_SAVE_SESSION_INFO {
c.Emit("success")
}
if dataPdu.Data.(*ControlDataPDU).Action != CTRLACTION_COOPERATE {
glog.Error("recvServerControlCooperatePDU ignore action", dataPdu.Data.(*ControlDataPDU).Action)
c.transport.Once("data", c.recvServerControlCooperatePDU)
return
}
c.transport.Once("data", c.recvServerControlGrantedPDU)
}
func (c *Client) recvServerControlGrantedPDU(s []byte) {
glog.Debug("PDU recvServerControlGrantedPDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_CONTROL {
if ok {
glog.Error("recvServerControlGrantedPDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerControlGrantedPDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
c.transport.Once("data", c.recvServerControlGrantedPDU)
return
}
if dataPdu.Data.(*ControlDataPDU).Action != CTRLACTION_GRANTED_CONTROL {
glog.Error("recvServerControlGrantedPDU ignore action", dataPdu.Data.(*ControlDataPDU).Action)
c.transport.Once("data", c.recvServerControlGrantedPDU)
return
}
c.transport.Once("data", c.recvServerFontMapPDU)
}
func (c *Client) recvServerFontMapPDU(s []byte) {
glog.Debug("PDU recvServerFontMapPDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_FONTMAP {
if ok {
glog.Error("recvServerFontMapPDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerFontMapPDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
return
}
c.transport.On("data", c.recvPDU)
c.Emit("ready")
}
func (c *Client) recvPDU(s []byte) {
glog.Trace("PDU recvPDU", hex.EncodeToString(s))
r := bytes.NewReader(s)
if r.Len() > 0 {
p, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
if p.ShareCtrlHeader.PDUType == PDUTYPE_DEACTIVATEALLPDU {
c.transport.Once("data", c.recvDemandActivePDU)
} else if p.ShareCtrlHeader.PDUType == PDUTYPE_DATAPDU {
d := p.Message.(*DataPDU)
if d.Header.PDUType2 == PDUTYPE2_UPDATE {
up := d.Data.(*UpdateDataPDU)
p := up.Udata
if up.UpdateType == FASTPATH_UPDATETYPE_BITMAP {
c.Emit("bitmap", p.(*BitmapUpdateDataPDU).Rectangles)
}
}
if d.Header.PDUType2 == PDUTYPE2_SAVE_SESSION_INFO {
c.Emit("success")
}
}
}
}
func (c *Client) RecvFastPath(secFlag byte, s []byte) {
glog.Trace("PDU RecvFastPath", hex.EncodeToString(s))
r := bytes.NewReader(s)
for r.Len() > 0 {
updateHeader, err := core.ReadUInt8(r)
if err != nil {
return
}
updateCode := updateHeader & 0x0f
fragmentation := updateHeader & 0x30
compression := updateHeader & 0xC0
var compressionFlags uint8 = 0
if compression == FASTPATH_OUTPUT_COMPRESSION_USED {
compressionFlags, err = core.ReadUInt8(r)
}
size, err := core.ReadUint16LE(r)
if err != nil {
return
}
glog.Trace("Code:", FastPathUpdateType(updateCode),
"compressionFlags:", compressionFlags,
"fragmentation:", fragmentation,
"size:", size, "len:", r.Len())
if compressionFlags&RDP_MPPC_COMPRESSED != 0 {
glog.Info("RDP_MPPC_COMPRESSED")
}
if fragmentation != FASTPATH_FRAGMENT_SINGLE {
if fragmentation == FASTPATH_FRAGMENT_FIRST {
c.buff.Reset()
}
b, _ := core.ReadBytes(r.Len(), r)
c.buff.Write(b)
if fragmentation != FASTPATH_FRAGMENT_LAST {
return
}
r = bytes.NewReader(c.buff.Bytes())
}
p, err := readFastPathUpdatePDU(r, updateCode)
if err != nil || p == nil || p.Data == nil {
glog.Debug("readFastPathUpdatePDU:", err)
return
}
if updateCode == FASTPATH_UPDATETYPE_BITMAP {
c.Emit("bitmap", p.Data.(*FastPathBitmapUpdateDataPDU).Rectangles)
} else if updateCode == FASTPATH_UPDATETYPE_COLOR {
c.Emit("color", p.Data.(*FastPathColorPdu))
}
}
}
type InputEventsInterface interface {
Serialize() []byte
}
func (c *Client) SendInputEvents(msgType uint16, events []InputEventsInterface) {
p := &ClientInputEventPDU{}
p.NumEvents = uint16(len(events))
p.SlowPathInputEvents = make([]SlowPathInputEvent, 0, p.NumEvents)
for _, in := range events {
seria := in.Serialize()
s := SlowPathInputEvent{0, msgType, len(seria), seria}
p.SlowPathInputEvents = append(p.SlowPathInputEvents, s)
}
c.sendDataPDU(p)
}
+913
View File
@@ -0,0 +1,913 @@
package sec
import (
"bytes"
"crypto/md5"
"crypto/rand"
"crypto/rc4"
"crypto/rsa"
"crypto/sha1"
"encoding/hex"
"errors"
"io"
"unicode/utf16"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/nla"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/lic"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
)
/**
* SecurityFlag
* @see http://msdn.microsoft.com/en-us/library/cc240579.aspx
*/
const (
EXCHANGE_PKT uint16 = 0x0001
TRANSPORT_REQ = 0x0002
TRANSPORT_RSP = 0x0004
ENCRYPT = 0x0008
RESET_SEQNO = 0x0010
IGNORE_SEQNO = 0x0020
INFO_PKT = 0x0040
LICENSE_PKT = 0x0080
LICENSE_ENCRYPT_CS = 0x0200
LICENSE_ENCRYPT_SC = 0x0200
REDIRECTION_PKT = 0x0400
SECURE_CHECKSUM = 0x0800
AUTODETECT_REQ = 0x1000
AUTODETECT_RSP = 0x2000
HEARTBEAT = 0x4000
FLAGSHI_VALID = 0x8000
)
const (
INFO_MOUSE uint32 = 0x00000001
INFO_DISABLECTRLALTDEL = 0x00000002
INFO_AUTOLOGON = 0x00000008
INFO_UNICODE = 0x00000010
INFO_MAXIMIZESHELL = 0x00000020
INFO_LOGONNOTIFY = 0x00000040
INFO_COMPRESSION = 0x00000080
INFO_ENABLEWINDOWSKEY = 0x00000100
INFO_REMOTECONSOLEAUDIO = 0x00002000
INFO_FORCE_ENCRYPTED_CS_PDU = 0x00004000
INFO_RAIL = 0x00008000
INFO_LOGONERRORS = 0x00010000
INFO_MOUSE_HAS_WHEEL = 0x00020000
INFO_PASSWORD_IS_SC_PIN = 0x00040000
INFO_NOAUDIOPLAYBACK = 0x00080000
INFO_USING_SAVED_CREDS = 0x00100000
INFO_AUDIOCAPTURE = 0x00200000
INFO_VIDEO_DISABLE = 0x00400000
INFO_CompressionTypeMask = 0x00001E00
)
const (
AF_INET uint16 = 0x00002
AF_INET6 = 0x0017
)
const (
PERF_DISABLE_WALLPAPER uint32 = 0x00000001
PERF_DISABLE_FULLWINDOWDRAG = 0x00000002
PERF_DISABLE_MENUANIMATIONS = 0x00000004
PERF_DISABLE_THEMING = 0x00000008
PERF_DISABLE_CURSOR_SHADOW = 0x00000020
PERF_DISABLE_CURSORSETTINGS = 0x00000040
PERF_ENABLE_FONT_SMOOTHING = 0x00000080
PERF_ENABLE_DESKTOP_COMPOSITION = 0x00000100
)
const (
FASTPATH_OUTPUT_SECURE_CHECKSUM = 0x1
FASTPATH_OUTPUT_ENCRYPTED = 0x2
)
type ClientAutoReconnect struct {
CbAutoReconnectLen uint16
CbLen uint32
Version uint32
LogonId uint32
SecVerifier []byte
}
func NewClientAutoReconnect(id uint32, random []byte) *ClientAutoReconnect {
return &ClientAutoReconnect{
CbAutoReconnectLen: 28,
CbLen: 28,
Version: 1,
LogonId: id,
SecVerifier: nla.HMAC_MD5(random, random),
}
}
type RDPExtendedInfo struct {
ClientAddressFamily uint16 `struc:"little"`
CbClientAddress uint16 `struc:"little,sizeof=ClientAddress"`
ClientAddress []byte `struc:"[]byte"`
CbClientDir uint16 `struc:"little,sizeof=ClientDir"`
ClientDir []byte `struc:"[]byte"`
ClientTimeZone []byte `struc:"[172]byte"`
ClientSessionId uint32 `struc:"litttle"`
PerformanceFlags uint32 `struc:"little"`
AutoReconnect *ClientAutoReconnect
}
func NewExtendedInfo(auto *ClientAutoReconnect) *RDPExtendedInfo {
return &RDPExtendedInfo{
ClientAddressFamily: AF_INET,
ClientAddress: []byte{0, 0},
ClientDir: []byte{0, 0},
ClientTimeZone: make([]byte, 172),
ClientSessionId: 0,
AutoReconnect: auto,
}
}
func (o *RDPExtendedInfo) Serialize() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(o.ClientAddressFamily, buff)
core.WriteUInt16LE(uint16(len(o.ClientAddress)), buff)
core.WriteBytes(o.ClientAddress, buff)
core.WriteUInt16LE(uint16(len(o.ClientDir)), buff)
core.WriteBytes(o.ClientDir, buff)
core.WriteBytes(o.ClientTimeZone, buff)
core.WriteUInt32LE(o.ClientSessionId, buff)
core.WriteUInt32LE(o.PerformanceFlags, buff)
if o.AutoReconnect != nil {
core.WriteUInt16LE(o.AutoReconnect.CbAutoReconnectLen, buff)
core.WriteUInt32LE(o.AutoReconnect.CbLen, buff)
core.WriteUInt32LE(o.AutoReconnect.Version, buff)
core.WriteUInt32LE(o.AutoReconnect.LogonId, buff)
core.WriteBytes(o.AutoReconnect.SecVerifier, buff)
}
return buff.Bytes()
}
type RDPInfo struct {
CodePage uint32
Flag uint32
CbDomain uint16
CbUserName uint16
CbPassword uint16
CbAlternateShell uint16
CbWorkingDir uint16
Domain []byte
UserName []byte
Password []byte
AlternateShell []byte
WorkingDir []byte
ExtendedInfo *RDPExtendedInfo
}
func NewRDPInfo() *RDPInfo {
info := &RDPInfo{
Flag: INFO_MOUSE | INFO_UNICODE | INFO_MAXIMIZESHELL |
INFO_ENABLEWINDOWSKEY | INFO_DISABLECTRLALTDEL | INFO_MOUSE_HAS_WHEEL |
INFO_FORCE_ENCRYPTED_CS_PDU | INFO_AUTOLOGON,
Domain: []byte{0, 0},
UserName: []byte{0, 0},
Password: []byte{0, 0},
AlternateShell: []byte{0, 0},
WorkingDir: []byte{0, 0},
ExtendedInfo: NewExtendedInfo(nil),
}
return info
}
func (o *RDPInfo) SetClientAutoReconnect(auto *ClientAutoReconnect) {
o.ExtendedInfo.AutoReconnect = auto
}
func (o *RDPInfo) SetClientInfo() {
o.Flag |= INFO_LOGONNOTIFY | INFO_LOGONERRORS
}
func (o *RDPInfo) Serialize(hasExtended bool) []byte {
buff := &bytes.Buffer{}
core.WriteUInt32LE(o.CodePage, buff) // 0000000
core.WriteUInt32LE(o.Flag, buff) // 0530101
core.WriteUInt16LE(uint16(len(o.Domain)-2), buff) // 001c
core.WriteUInt16LE(uint16(len(o.UserName)-2), buff) // 0008
core.WriteUInt16LE(uint16(len(o.Password)-2), buff) //000c
core.WriteUInt16LE(uint16(len(o.AlternateShell)-2), buff) //0000
core.WriteUInt16LE(uint16(len(o.WorkingDir)-2), buff) //0000
core.WriteBytes(o.Domain, buff)
core.WriteBytes(o.UserName, buff)
core.WriteBytes(o.Password, buff)
core.WriteBytes(o.AlternateShell, buff)
core.WriteBytes(o.WorkingDir, buff)
if hasExtended {
core.WriteBytes(o.ExtendedInfo.Serialize(), buff)
}
return buff.Bytes()
}
type SecurityHeader struct {
securityFlag uint16
securityFlagHi uint16
}
func readSecurityHeader(r io.Reader) *SecurityHeader {
s := &SecurityHeader{}
s.securityFlag, _ = core.ReadUint16LE(r)
s.securityFlagHi, _ = core.ReadUint16LE(r)
return s
}
type SEC struct {
emission.Emitter
transport core.Transport
info *RDPInfo
machineName string
clientData []interface{}
serverData []interface{}
enableEncryption bool
//Enable Secure Mac generation
enableSecureCheckSum bool
//counter before update
nbEncryptedPacket int
nbDecryptedPacket int
currentDecrytKey []byte
currentEncryptKey []byte
//current rc4 tab
decryptRc4 *rc4.Cipher
encryptRc4 *rc4.Cipher
macKey []byte
macSalt []byte
}
func NewSEC(t core.Transport) *SEC {
sec := &SEC{
*emission.NewEmitter(),
t,
NewRDPInfo(),
"",
nil,
nil,
false,
false,
0,
0,
nil,
nil,
nil,
nil,
nil,
nil,
}
t.On("close", func() {
sec.Emit("close")
}).On("error", func(err error) {
sec.Emit("error", err)
})
return sec
}
func (s *SEC) Read(data []byte) (n int, err error) {
return s.transport.Read(data)
}
func (s *SEC) Write(b []byte) (n int, err error) {
if !s.enableEncryption {
return s.transport.Write(b)
}
data := s.encrytData(b)
return s.transport.Write(data)
}
func (s *SEC) Close() error {
return s.transport.Close()
}
func (s *SEC) sendFlagged(flag uint16, data []byte) (n int, err error) {
glog.Trace("sendFlagged:", hex.EncodeToString(data))
b := s.encryt(flag, data)
return s.transport.Write(b)
}
/*
@see: http://msdn.microsoft.com/en-us/library/cc241995.aspx
@param macSaltKey: {str} mac key
@param data: {str} data to sign
@return: {str} signature
*/
func macData(macSaltKey, data []byte) []byte {
sha1Digest := sha1.New()
md5Digest := md5.New()
b := &bytes.Buffer{}
core.WriteUInt32LE(uint32(len(data)), b)
sha1Digest.Write(macSaltKey)
for i := 0; i < 40; i++ {
sha1Digest.Write([]byte("\x36"))
}
sha1Digest.Write(b.Bytes())
sha1Digest.Write(data)
sha1Sig := sha1Digest.Sum(nil)
md5Digest.Write(macSaltKey)
for i := 0; i < 48; i++ {
md5Digest.Write([]byte("\x5c"))
}
md5Digest.Write(sha1Sig)
return md5Digest.Sum(nil)
}
func (s *SEC) readEncryptedPayload(data []byte, checkSum bool) []byte {
r := bytes.NewReader(data)
sign, _ := core.ReadBytes(8, r)
glog.Debug("read sign:", sign)
encryptedPayload, _ := core.ReadBytes(r.Len(), r)
if s.decryptRc4 == nil {
s.decryptRc4, _ = rc4.NewCipher(s.currentDecrytKey)
}
s.nbDecryptedPacket++
glog.Debug("nbDecryptedPacket:", s.nbDecryptedPacket)
plaintext := make([]byte, len(encryptedPayload))
s.decryptRc4.XORKeyStream(plaintext, encryptedPayload)
return plaintext
}
func (s *SEC) writeEncryptedPayload(data []byte, checkSum bool) []byte {
if s.nbEncryptedPacket == 4096 {
}
if checkSum {
glog.Debug("need checkSum")
return []byte{}
}
s.nbEncryptedPacket++
glog.Debug("nbEncryptedPacket:", s.nbEncryptedPacket)
b := &bytes.Buffer{}
sign := macData(s.macKey, data)[:8]
//sign := macData(s.macSalt, data)[:8]
if s.encryptRc4 == nil {
s.encryptRc4, _ = rc4.NewCipher(s.currentEncryptKey)
}
plaintext := make([]byte, len(data))
s.encryptRc4.XORKeyStream(plaintext, data)
b.Write(sign)
b.Write(plaintext)
glog.Debug("sign:", hex.EncodeToString(sign), "plaintext:", hex.EncodeToString(plaintext))
return b.Bytes()
}
func (s *SEC) encryt(flag uint16, b []byte) []byte {
data := b
if flag&ENCRYPT != 0 {
data = s.writeEncryptedPayload(b, flag&SECURE_CHECKSUM != 0)
}
buff := &bytes.Buffer{}
core.WriteUInt16LE(flag, buff)
core.WriteUInt16LE(0, buff)
core.WriteBytes(data, buff)
return buff.Bytes()
}
func (s *SEC) encrytData(b []byte) []byte {
if !s.enableEncryption {
return b
}
var flag uint16 = ENCRYPT
if s.enableSecureCheckSum {
flag |= SECURE_CHECKSUM
}
return s.encryt(flag, b)
}
func (s *SEC) decrytData(b []byte) []byte {
if !s.enableEncryption {
return b
}
r := bytes.NewReader(b)
securityFlag, _ := core.ReadUint16LE(r)
_, _ = core.ReadUint16LE(r) //securityFlagHi
data, _ := core.ReadBytes(r.Len(), r)
if securityFlag&ENCRYPT != 0 {
data = s.readEncryptedPayload(data, securityFlag&SECURE_CHECKSUM != 0)
}
return data
}
type Client struct {
*SEC
userId uint16
channelId uint16
//initialise decrypt and encrypt keys
initialDecrytKey []byte
initialEncryptKey []byte
fastPathListener core.FastPathListener
channelSender core.ChannelSender
}
func NewClient(t core.Transport) *Client {
c := &Client{
SEC: NewSEC(t),
}
t.On("connect", c.connect)
return c
}
func (c *Client) SetClientAutoReconnect(id uint32, random []byte) {
auto := NewClientAutoReconnect(id, random)
c.info.SetClientAutoReconnect(auto)
}
func (c *Client) SetAlternateShell(shell string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(shell)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.AlternateShell = buff.Bytes()
c.info.Flag |= INFO_RAIL
}
func (c *Client) SetUser(user string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(user)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.UserName = buff.Bytes()
}
func (c *Client) SetPwd(pwd string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(pwd)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.Password = buff.Bytes()
}
func (c *Client) SetDomain(domain string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(domain)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.Domain = buff.Bytes()
}
func (c *Client) connect(clientData []interface{}, serverData []interface{}, userId uint16, channels []t125.MCSChannelInfo) {
glog.Debug("sec on connect:", clientData)
glog.Debug("sec on connect:", serverData)
glog.Debug("sec on connect:", userId)
glog.Debug("sec on connect:", channels)
c.clientData = clientData
c.serverData = serverData
c.userId = userId
for _, channel := range channels {
glog.Infof("channel: %s <%d>:", channel.Name, channel.ID)
if channel.Name == t125.GLOBAL_CHANNEL_NAME {
c.channelId = channel.ID
//break
}
}
c.enableEncryption = c.ClientCoreData().ServerSelectedProtocol == 0
if c.enableEncryption {
c.sendClientRandom()
}
c.sendInfoPkt()
c.transport.Once("sec", c.recvLicenceInfo)
}
func (c *Client) ClientCoreData() *gcc.ClientCoreData {
return c.clientData[0].(*gcc.ClientCoreData)
}
func (c *Client) ClientSecurityData() *gcc.ClientSecurityData {
return c.clientData[1].(*gcc.ClientSecurityData)
}
func (c *Client) ClientNetworkData() *gcc.ClientNetworkData {
return c.clientData[2].(*gcc.ClientNetworkData)
}
func (c *Client) ServerSecurityData() *gcc.ServerSecurityData {
return c.serverData[1].(*gcc.ServerSecurityData)
}
/*
@summary: generate 40 bits data from 128 bits data
@param data: {str} 128 bits data
@return: {str} 40 bits data
@see: http://msdn.microsoft.com/en-us/library/cc240785.aspx
*/
func gen40bits(data []byte) []byte {
return append([]byte("\xd1\x26\x9e"), data[3:8]...)
}
/*
@summary: generate 56 bits data from 128 bits data
@param data: {str} 128 bits data
@return: {str} 56 bits data
@see: http://msdn.microsoft.com/en-us/library/cc240785.aspx
*/
func gen56bits(data []byte) []byte {
return append([]byte("\xd1"), data[1:8]...)
}
/*
@summary: Generate particular signature from combination of sha1 and md5
@see: http://msdn.microsoft.com/en-us/library/cc241992.aspx
@param inputData: strange input (see doc)
@param salt: salt for context call
@param salt1: another salt (ex : client random)
@param salt2: another another salt (ex: server random)
@return : MD5(Salt + SHA1(Input + Salt + Salt1 + Salt2))
*/
func saltedHash(inputData, salt, salt1, salt2 []byte) []byte {
sha1Digest := sha1.New()
md5Digest := md5.New()
sha1Digest.Write(inputData)
sha1Digest.Write(salt[:48])
sha1Digest.Write(salt1)
sha1Digest.Write(salt2)
sha1Sig := sha1Digest.Sum(nil)
md5Digest.Write(salt[:48])
md5Digest.Write(sha1Sig)
return md5Digest.Sum(nil)[:16]
}
/*
@summary: MD5(in0[:16] + in1[:32] + in2[:32])
@param key: in 16
@param random1: in 32
@param random2: in 32
@return MD5(in0[:16] + in1[:32] + in2[:32])
*/
func finalHash(key, random1, random2 []byte) []byte {
md5Digest := md5.New()
md5Digest.Write(key)
md5Digest.Write(random1)
md5Digest.Write(random2)
return md5Digest.Sum(nil)
}
/*
@summary: Generate master secret
@param secret: {str} secret
@param clientRandom : {str} client random
@param serverRandom : {str} server random
@see: http://msdn.microsoft.com/en-us/library/cc241992.aspx
*/
func masterSecret(secret, random1, random2 []byte) []byte {
sh1 := saltedHash([]byte("A"), secret, random1, random2)
sh2 := saltedHash([]byte("BB"), secret, random1, random2)
sh3 := saltedHash([]byte("CCC"), secret, random1, random2)
ms := bytes.NewBuffer(nil)
ms.Write(sh1)
ms.Write(sh2)
ms.Write(sh3)
return ms.Bytes()
}
/*
@summary: Generate master secret
@param secret: secret
@param clientRandom : client random
@param serverRandom : server random
*/
func sessionKeyBlob(secret, random1, random2 []byte) []byte {
sh1 := saltedHash([]byte("X"), secret, random1, random2)
sh2 := saltedHash([]byte("YY"), secret, random1, random2)
sh3 := saltedHash([]byte("ZZZ"), secret, random1, random2)
ms := bytes.NewBuffer(nil)
ms.Write(sh1)
ms.Write(sh2)
ms.Write(sh3)
return ms.Bytes()
}
func generateKeys(clientRandom, serverRandom []byte, method uint32) ([]byte, []byte, []byte) {
b := &bytes.Buffer{}
b.Write(clientRandom[:24])
b.Write(serverRandom[:24])
preMasterHash := b.Bytes()
glog.Debug("preMasterHash:", hex.EncodeToString(preMasterHash))
masterHash := masterSecret(preMasterHash, clientRandom, serverRandom)
glog.Debug("masterHash:", hex.EncodeToString(masterHash))
sessionKey := sessionKeyBlob(masterHash, clientRandom, serverRandom)
glog.Debug("sessionKey:", hex.EncodeToString(sessionKey))
macKey128 := sessionKey[:16]
initialFirstKey128 := finalHash(sessionKey[16:32], clientRandom, serverRandom)
initialSecondKey128 := finalHash(sessionKey[32:48], clientRandom, serverRandom)
glog.Debug("macKey128:", hex.EncodeToString(macKey128))
glog.Debug("FirstKey128:", hex.EncodeToString(initialFirstKey128))
glog.Debug("SecondKey128:", hex.EncodeToString(initialSecondKey128))
//generate valid key
if method == gcc.ENCRYPTION_FLAG_40BIT {
return gen40bits(macKey128), gen40bits(initialFirstKey128), gen40bits(initialSecondKey128)
} else if method == gcc.ENCRYPTION_FLAG_56BIT {
return gen56bits(macKey128), gen56bits(initialFirstKey128), gen56bits(initialSecondKey128)
}
// method == gcc.ENCRYPTION_FLAG_128BIT
return macKey128, initialFirstKey128, initialSecondKey128
}
type ClientSecurityExchangePDU struct {
Length uint32 `struc:"little"`
EncryptedClientRandom []byte `struc:"little"`
Padding []byte `struc:"[8]byte"`
}
func (e *ClientSecurityExchangePDU) serialize() []byte {
buff := &bytes.Buffer{}
core.WriteUInt32LE(e.Length, buff)
core.WriteBytes(e.EncryptedClientRandom, buff)
core.WriteBytes(e.Padding, buff)
return buff.Bytes()
}
func (c *Client) sendClientRandom() {
glog.Debug("send Client Random")
clientRandom := core.Random(32)
glog.Debug("clientRandom:", hex.EncodeToString(clientRandom))
serverRandom := c.ServerSecurityData().ServerRandom
glog.Debug("ServerRandom:", hex.EncodeToString(serverRandom))
c.macKey, c.initialDecrytKey, c.initialEncryptKey = generateKeys(clientRandom,
serverRandom, c.ServerSecurityData().EncryptionMethod)
//initialize keys
c.currentDecrytKey = c.initialDecrytKey
c.currentEncryptKey = c.initialEncryptKey
//verify certificate
if !c.ServerSecurityData().ServerCertificate.CertData.Verify() {
glog.Warn("Cannot verify server identity")
}
serverPubKey, err := c.ServerSecurityData().ServerCertificate.CertData.GetPublicKey()
if err != nil || serverPubKey == nil {
glog.Error("GetPublicKey failed:", err)
c.Emit("error", errors.New("failed to get server public key"))
return
}
ret, err := rsa.EncryptPKCS1v15(rand.Reader, serverPubKey, core.Reverse(clientRandom))
if err != nil {
glog.Error("EncryptPKCS1v15 err:", err)
c.Emit("error", err)
return
}
message := ClientSecurityExchangePDU{}
message.EncryptedClientRandom = core.Reverse(ret)
message.Length = uint32(len(message.EncryptedClientRandom) + 8)
message.Padding = make([]byte, 8)
glog.Debug("message:", message)
c.sendFlagged(EXCHANGE_PKT, message.serialize())
}
func (c *Client) sendInfoPkt() {
var secFlag uint16 = INFO_PKT
if c.enableEncryption {
secFlag |= ENCRYPT
}
glog.Debug("RdpVersion:", c.ClientCoreData().RdpVersion, ":", gcc.RDP_VERSION_5_PLUS)
c.sendFlagged(secFlag, c.info.Serialize(c.ClientCoreData().RdpVersion == gcc.RDP_VERSION_5_PLUS))
}
func (c *Client) recvLicenceInfo(channel string, s []byte) {
glog.Debug("sec recvLicenceInfo", hex.EncodeToString(s))
r := bytes.NewReader(s)
h := readSecurityHeader(r)
if (h.securityFlag & LICENSE_PKT) == 0 {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_PDU_SEC_BAD_LICENSE_HEADER"))
return
}
p := lic.ReadLicensePacket(r)
switch p.BMsgtype {
case lic.NEW_LICENSE:
glog.Info("sec NEW_LICENSE")
c.Emit("success")
goto connect
case lic.ERROR_ALERT:
message := p.LicensingMessage.(*lic.ErrorMessage)
glog.Info("sec ERROR_ALERT and ErrorCode:", message.DwErrorCode)
if message.DwErrorCode == lic.STATUS_VALID_CLIENT && message.DwStateTransaction == lic.ST_NO_TRANSITION {
goto connect
}
goto retry
case lic.LICENSE_REQUEST:
glog.Info("sec LICENSE_REQUEST")
c.sendClientNewLicenseRequest(p.LicensingMessage.([]byte))
goto retry
case lic.PLATFORM_CHALLENGE:
glog.Info("sec PLATFORM_CHALLENGE")
c.sendClientChallengeResponse(p.LicensingMessage.([]byte))
goto retry
default:
glog.Error("Not a valid license packet")
c.Emit("error", errors.New("Not a valid license packet"))
return
}
connect:
c.transport.On("sec", c.recvData)
c.Emit("connect", c.clientData[0].(*gcc.ClientCoreData), c.userId, c.channelId)
return
retry:
c.transport.Once("sec", c.recvLicenceInfo)
return
}
func (c *Client) sendClientNewLicenseRequest(data []byte) {
var req lic.ServerLicenseRequest
struc.Unpack(bytes.NewReader(data), &req)
var sc gcc.ServerCertificate
if c.ServerSecurityData().ServerCertificate.DwVersion != 0 {
sc = c.ServerSecurityData().ServerCertificate
} else {
rd := bytes.NewReader(req.ServerCertificate.BlobData)
err := sc.Unpack(rd)
if err != nil {
glog.Error("read serverCertificate err:", err)
return
}
}
serverRandom := req.ServerRandom
clientRandom := core.Random(32)
preMasterSecret := core.Random(48)
masSecret := masterSecret(preMasterSecret, clientRandom, serverRandom)
sessionKeyBlob := masterSecret(masSecret, serverRandom, clientRandom)
//c.macKey = sessionKeyBlob[:16]
c.macSalt = sessionKeyBlob[:16]
c.initialDecrytKey = finalHash(sessionKeyBlob[16:32], clientRandom, serverRandom)
//format message
message := &lic.ClientNewLicenseRequest{}
message.PreferredKeyExchangeAlg = 0x00000001
message.PlatformId = 0x04000000 | 0x00010000
message.ClientRandom = clientRandom
buff := &bytes.Buffer{}
serverPubKey, err := sc.CertData.GetPublicKey()
if err != nil {
glog.Error("GetPublicKey failed:", err)
return
}
ret, err := rsa.EncryptPKCS1v15(rand.Reader, serverPubKey, core.Reverse(preMasterSecret))
if err != nil {
glog.Error("EncryptPKCS1v15 failed:", err)
return
}
buff.Write(core.Reverse(ret))
buff.Write([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
message.EncryptedPreMasterSecret.BlobData = buff.Bytes()
message.EncryptedPreMasterSecret.WBlobLen = uint16(buff.Len())
message.EncryptedPreMasterSecret.WBlobType = lic.BB_RANDOM_BLOB
buff.Reset()
buff.Write(c.info.UserName)
buff.Write([]byte{0x00})
message.ClientUserName.BlobData = buff.Bytes()
message.ClientUserName.WBlobLen = uint16(buff.Len())
message.ClientUserName.WBlobType = lic.BB_CLIENT_USER_NAME_BLOB
buff.Reset()
buff.Write(c.ClientCoreData().ClientName[:])
buff.Write([]byte{0x00})
message.ClientMachineName.BlobData = buff.Bytes()
message.ClientMachineName.WBlobLen = uint16(buff.Len())
message.ClientMachineName.WBlobType = lic.BB_CLIENT_MACHINE_NAME_BLOB
buff.Reset()
err = struc.Pack(buff, message)
if err != nil {
glog.Error("err:", err)
}
c.sendFlagged(LICENSE_PKT, buff.Bytes())
}
func (c *Client) sendClientChallengeResponse(data []byte) {
var pc lic.ServerPlatformChallenge
struc.Unpack(bytes.NewReader(data), &pc)
serverEncryptedChallenge := pc.EncryptedPlatformChallenge.BlobData
//decrypt server challenge
//it should be TEST word in unicode format
rc, _ := rc4.NewCipher(c.initialDecrytKey)
serverChallenge := make([]byte, 20)
rc.XORKeyStream(serverChallenge, serverEncryptedChallenge)
//if serverChallenge != "T\x00E\x00S\x00T\x00\x00\x00":
//raise InvalidExpectedDataException("bad license server challenge")
//generate hwid
b := &bytes.Buffer{}
b.Write(c.ClientCoreData().ClientName[:])
b.Write(c.info.UserName)
for i := 0; i < 2; i++ {
b.Write([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
}
hwid := b.Bytes()[:20]
encryptedHWID := make([]byte, 20)
rc.XORKeyStream(encryptedHWID, hwid)
b.Reset()
b.Write(serverChallenge)
b.Write(hwid)
message := &lic.ClientPLatformChallengeResponse{}
message.EncryptedPlatformChallengeResponse.BlobData = serverEncryptedChallenge
message.EncryptedHWID.BlobData = encryptedHWID
//message.MACData = macData(c.macKey, b.Bytes())[:16]
message.MACData = macData(c.macSalt, b.Bytes())[:16]
b.Reset()
struc.Pack(b, message)
c.sendFlagged(LICENSE_PKT, b.Bytes())
}
func (c *Client) recvData(channel string, s []byte) {
glog.Trace("sec recvData", hex.EncodeToString(s))
glog.Debugf("channel<%s> data len: %d", channel, len(s))
data := c.decrytData(s)
if channel != t125.GLOBAL_CHANNEL_NAME {
c.Emit("channel", channel, data)
return
}
c.Emit("data", data)
}
func (c *Client) SetFastPathListener(f core.FastPathListener) {
c.fastPathListener = f
}
func (c *Client) RecvFastPath(secFlag byte, s []byte) {
data := s
if c.enableEncryption && secFlag&FASTPATH_OUTPUT_ENCRYPTED != 0 {
data = c.readEncryptedPayload(s, secFlag&FASTPATH_OUTPUT_SECURE_CHECKSUM != 0)
}
c.fastPathListener.RecvFastPath(secFlag, data)
}
func (c *Client) SetChannelSender(f core.ChannelSender) {
c.channelSender = f
}
func (c *Client) SendToChannel(channel string, b []byte) (int, error) {
if !c.enableEncryption {
glog.Debug("Sec Client write", hex.EncodeToString(b))
return c.channelSender.SendToChannel(channel, b)
}
var flag uint16 = ENCRYPT
if c.enableSecureCheckSum {
flag |= SECURE_CHECKSUM
}
data := c.writeEncryptedPayload(b, c.enableSecureCheckSum)
buff := &bytes.Buffer{}
core.WriteUInt16LE(flag, buff)
core.WriteUInt16LE(0, buff)
core.WriteBytes(data, buff)
glog.Debug("Sec Client write", channel, hex.EncodeToString(buff.Bytes()))
return c.channelSender.SendToChannel(channel, buff.Bytes())
}
+189
View File
@@ -0,0 +1,189 @@
package ber
import (
"errors"
"fmt"
"io"
"github.com/shadow1ng/fscan/mylib/grdp/core"
)
const (
CLASS_MASK uint8 = 0xC0
CLASS_UNIV = 0x00
CLASS_APPL = 0x40
CLASS_CTXT = 0x80
CLASS_PRIV = 0xC0
)
const (
PC_MASK uint8 = 0x20
PC_PRIMITIVE = 0x00
PC_CONSTRUCT = 0x20
)
const (
TAG_MASK uint8 = 0x1F
TAG_BOOLEAN = 0x01
TAG_INTEGER = 0x02
TAG_BIT_STRING = 0x03
TAG_OCTET_STRING = 0x04
TAG_OBJECT_IDENFIER = 0x06
TAG_ENUMERATED = 0x0A
TAG_SEQUENCE = 0x10
TAG_SEQUENCE_OF = 0x10
)
func berPC(pc bool) uint8 {
if pc {
return PC_CONSTRUCT
}
return PC_PRIMITIVE
}
func ReadEnumerated(r io.Reader) (uint8, error) {
if !ReadUniversalTag(TAG_ENUMERATED, false, r) {
return 0, errors.New("invalid ber tag")
}
length, err := ReadLength(r)
if err != nil {
return 0, err
}
if length != 1 {
return 0, errors.New(fmt.Sprintf("enumerate size is wrong, get %v, expect 1", length))
}
return core.ReadUInt8(r)
}
func ReadUniversalTag(tag uint8, pc bool, r io.Reader) bool {
bb, _ := core.ReadUInt8(r)
return bb == (CLASS_UNIV|berPC(pc))|(TAG_MASK&tag)
}
func WriteUniversalTag(tag uint8, pc bool, w io.Writer) {
core.WriteUInt8((CLASS_UNIV|berPC(pc))|(TAG_MASK&tag), w)
}
func ReadLength(r io.Reader) (int, error) {
ret := 0
size, _ := core.ReadUInt8(r)
if size&0x80 > 0 {
size = size &^ 0x80
if size == 1 {
r, err := core.ReadUInt8(r)
if err != nil {
return 0, err
}
ret = int(r)
} else if size == 2 {
r, err := core.ReadUint16BE(r)
if err != nil {
return 0, err
}
ret = int(r)
} else {
return 0, errors.New("BER length may be 1 or 2")
}
} else {
ret = int(size)
}
return ret, nil
}
func WriteLength(size int, w io.Writer) {
if size > 0x7f {
core.WriteUInt8(0x82, w)
core.WriteUInt16BE(uint16(size), w)
} else {
core.WriteUInt8(uint8(size), w)
}
}
func ReadInteger(r io.Reader) (int, error) {
if !ReadUniversalTag(TAG_INTEGER, false, r) {
return 0, errors.New("Bad integer tag")
}
size, _ := ReadLength(r)
switch size {
case 1:
num, _ := core.ReadUInt8(r)
return int(num), nil
case 2:
num, _ := core.ReadUint16BE(r)
return int(num), nil
case 3:
integer1, _ := core.ReadUInt8(r)
integer2, _ := core.ReadUint16BE(r)
return int(integer2) + (int(integer1) << 16), nil
case 4:
num, _ := core.ReadUInt32BE(r)
return int(num), nil
default:
return 0, errors.New("wrong size")
}
}
func WriteInteger(n int, w io.Writer) {
WriteUniversalTag(TAG_INTEGER, false, w)
if n <= 0xff {
WriteLength(1, w)
core.WriteUInt8(uint8(n), w)
} else if n <= 0xffff {
WriteLength(2, w)
core.WriteUInt16BE(uint16(n), w)
} else {
WriteLength(4, w)
core.WriteUInt32BE(uint32(n), w)
}
}
func WriteOctetstring(str string, w io.Writer) {
WriteUniversalTag(TAG_OCTET_STRING, false, w)
WriteLength(len(str), w)
core.WriteBytes([]byte(str), w)
}
func WriteBoolean(b bool, w io.Writer) {
bb := uint8(0)
if b {
bb = uint8(0xff)
}
WriteUniversalTag(TAG_BOOLEAN, false, w)
WriteLength(1, w)
core.WriteUInt8(bb, w)
}
func ReadApplicationTag(tag uint8, r io.Reader) (int, error) {
bb, _ := core.ReadUInt8(r)
if tag > 30 {
if bb != (CLASS_APPL|PC_CONSTRUCT)|TAG_MASK {
return 0, errors.New("ReadApplicationTag invalid data")
}
bb, _ := core.ReadUInt8(r)
if bb != tag {
return 0, errors.New("ReadApplicationTag bad tag")
}
} else {
if bb != (CLASS_APPL|PC_CONSTRUCT)|(TAG_MASK&tag) {
return 0, errors.New("ReadApplicationTag invalid data2")
}
}
return ReadLength(r)
}
func WriteApplicationTag(tag uint8, size int, w io.Writer) {
if tag > 30 {
core.WriteUInt8((CLASS_APPL|PC_CONSTRUCT)|TAG_MASK, w)
core.WriteUInt8(tag, w)
WriteLength(size, w)
} else {
core.WriteUInt8((CLASS_APPL|PC_CONSTRUCT)|(TAG_MASK&tag), w)
WriteLength(size, w)
}
}
func WriteEncodedDomainParams(data []byte, w io.Writer) {
WriteUniversalTag(TAG_SEQUENCE, true, w)
WriteLength(len(data), w)
core.WriteBytes(data, w)
}
+642
View File
@@ -0,0 +1,642 @@
package gcc
import (
"bytes"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/asn1"
"errors"
"fmt"
"io"
"math/big"
"os"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/per"
)
var t124_02_98_oid = []byte{0, 0, 20, 124, 0, 1}
var h221_cs_key = "Duca"
var h221_sc_key = "McDn"
/**
* @see http://msdn.microsoft.com/en-us/library/cc240509.aspx
*/
type Message uint16
const (
//server -> client
SC_CORE Message = 0x0C01
SC_SECURITY = 0x0C02
SC_NET = 0x0C03
//client -> server
CS_CORE = 0xC001
CS_SECURITY = 0xC002
CS_NET = 0xC003
CS_CLUSTER = 0xC004
CS_MONITOR = 0xC005
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type ColorDepth uint16
const (
RNS_UD_COLOR_8BPP ColorDepth = 0xCA01
RNS_UD_COLOR_16BPP_555 = 0xCA02
RNS_UD_COLOR_16BPP_565 = 0xCA03
RNS_UD_COLOR_24BPP = 0xCA04
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type HighColor uint16
const (
HIGH_COLOR_4BPP HighColor = 0x0004
HIGH_COLOR_8BPP = 0x0008
HIGH_COLOR_15BPP = 0x000f
HIGH_COLOR_16BPP = 0x0010
HIGH_COLOR_24BPP = 0x0018
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type Support uint16
const (
RNS_UD_24BPP_SUPPORT uint16 = 0x0001
RNS_UD_16BPP_SUPPORT = 0x0002
RNS_UD_15BPP_SUPPORT = 0x0004
RNS_UD_32BPP_SUPPORT = 0x0008
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type CapabilityFlag uint16
const (
RNS_UD_CS_SUPPORT_ERRINFO_PDU uint16 = 0x0001
RNS_UD_CS_WANT_32BPP_SESSION = 0x0002
RNS_UD_CS_SUPPORT_STATUSINFO_PDU = 0x0004
RNS_UD_CS_STRONG_ASYMMETRIC_KEYS = 0x0008
RNS_UD_CS_UNUSED = 0x0010
RNS_UD_CS_VALID_CONNECTION_TYPE = 0x0020
RNS_UD_CS_SUPPORT_MONITOR_LAYOUT_PDU = 0x0040
RNS_UD_CS_SUPPORT_NETCHAR_AUTODETECT = 0x0080
RNS_UD_CS_SUPPORT_DYNVC_GFX_PROTOCOL = 0x0100
RNS_UD_CS_SUPPORT_DYNAMIC_TIME_ZONE = 0x0200
RNS_UD_CS_SUPPORT_HEARTBEAT_PDU = 0x0400
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type ConnectionType uint8
const (
CONNECTION_TYPE_MODEM ConnectionType = 0x01
CONNECTION_TYPE_BROADBAND_LOW = 0x02
CONNECTION_TYPE_SATELLITEV = 0x03
CONNECTION_TYPE_BROADBAND_HIGH = 0x04
CONNECTION_TYPE_WAN = 0x05
CONNECTION_TYPE_LAN = 0x06
CONNECTION_TYPE_AUTODETECT = 0x07
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type VERSION uint32
const (
RDP_VERSION_4 VERSION = 0x00080001
RDP_VERSION_5_PLUS = 0x00080004
)
type Sequence uint16
const (
RNS_UD_SAS_DEL Sequence = 0xAA03
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240511.aspx
*/
type EncryptionMethod uint32
const (
ENCRYPTION_FLAG_40BIT uint32 = 0x00000001
ENCRYPTION_FLAG_128BIT = 0x00000002
ENCRYPTION_FLAG_56BIT = 0x00000008
FIPS_ENCRYPTION_FLAG = 0x00000010
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240518.aspx
*/
type EncryptionLevel uint32
const (
ENCRYPTION_LEVEL_NONE EncryptionLevel = 0x00000000
ENCRYPTION_LEVEL_LOW = 0x00000001
ENCRYPTION_LEVEL_CLIENT_COMPATIBLE = 0x00000002
ENCRYPTION_LEVEL_HIGH = 0x00000003
ENCRYPTION_LEVEL_FIPS = 0x00000004
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240513.aspx
*/
type ChannelOptions uint32
const (
CHANNEL_OPTION_INITIALIZED ChannelOptions = 0x80000000
CHANNEL_OPTION_ENCRYPT_RDP = 0x40000000
CHANNEL_OPTION_ENCRYPT_SC = 0x20000000
CHANNEL_OPTION_ENCRYPT_CS = 0x10000000
CHANNEL_OPTION_PRI_HIGH = 0x08000000
CHANNEL_OPTION_PRI_MED = 0x04000000
CHANNEL_OPTION_PRI_LOW = 0x02000000
CHANNEL_OPTION_COMPRESS_RDP = 0x00800000
CHANNEL_OPTION_COMPRESS = 0x00400000
CHANNEL_OPTION_SHOW_PROTOCOL = 0x00200000
REMOTE_CONTROL_PERSISTENT = 0x00100000
)
/**
* IBM_101_102_KEYS is the most common keyboard type
*/
type KeyboardType uint32
const (
KT_IBM_PC_XT_83_KEY KeyboardType = 0x00000001
KT_OLIVETTI = 0x00000002
KT_IBM_PC_AT_84_KEY = 0x00000003
KT_IBM_101_102_KEYS = 0x00000004
KT_NOKIA_1050 = 0x00000005
KT_NOKIA_9140 = 0x00000006
KT_JAPANESE = 0x00000007
)
/**
* @see http://technet.microsoft.com/en-us/library/cc766503%28WS.10%29.aspx
*/
type KeyboardLayout uint32
const (
ARABIC KeyboardLayout = 0x00000401
BULGARIAN = 0x00000402
CHINESE_US_KEYBOARD = 0x00000404
CZECH = 0x00000405
DANISH = 0x00000406
GERMAN = 0x00000407
GREEK = 0x00000408
US = 0x00000409
SPANISH = 0x0000040a
FINNISH = 0x0000040b
FRENCH = 0x0000040c
HEBREW = 0x0000040d
HUNGARIAN = 0x0000040e
ICELANDIC = 0x0000040f
ITALIAN = 0x00000410
JAPANESE = 0x00000411
KOREAN = 0x00000412
DUTCH = 0x00000413
NORWEGIAN = 0x00000414
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240521.aspx
*/
type CertificateType uint32
const (
CERT_CHAIN_VERSION_1 CertificateType = 0x00000001
CERT_CHAIN_VERSION_2 = 0x00000002
)
type ChannelDef struct {
Name string `struc:"little"`
Options uint32 `struc:"little"`
}
type ClientCoreData struct {
RdpVersion VERSION `struc:"uint32,little"`
DesktopWidth uint16 `struc:"little"`
DesktopHeight uint16 `struc:"little"`
ColorDepth ColorDepth `struc:"little"`
SasSequence Sequence `struc:"little"`
KbdLayout KeyboardLayout `struc:"little"`
ClientBuild uint32 `struc:"little"`
ClientName [32]byte `struc:"[32]byte"`
KeyboardType uint32 `struc:"little"`
KeyboardSubType uint32 `struc:"little"`
KeyboardFnKeys uint32 `struc:"little"`
ImeFileName [64]byte `struc:"[64]byte"`
PostBeta2ColorDepth ColorDepth `struc:"little"`
ClientProductId uint16 `struc:"little"`
SerialNumber uint32 `struc:"little"`
HighColorDepth HighColor `struc:"little"`
SupportedColorDepths uint16 `struc:"little"`
EarlyCapabilityFlags uint16 `struc:"little"`
ClientDigProductId [64]byte `struc:"[64]byte"`
ConnectionType uint8 `struc:"uint8"`
Pad1octet uint8 `struc:"uint8"`
ServerSelectedProtocol uint32 `struc:"little"`
}
func NewClientCoreData() *ClientCoreData {
name, _ := os.Hostname()
var ClientName [32]byte
copy(ClientName[:], core.UnicodeEncode(name)[:])
return &ClientCoreData{
RDP_VERSION_5_PLUS, 1280, 800, RNS_UD_COLOR_8BPP,
RNS_UD_SAS_DEL, US, 3790, ClientName, KT_IBM_101_102_KEYS,
0, 12, [64]byte{}, RNS_UD_COLOR_8BPP, 1, 0, HIGH_COLOR_24BPP,
RNS_UD_15BPP_SUPPORT | RNS_UD_16BPP_SUPPORT | RNS_UD_24BPP_SUPPORT | RNS_UD_32BPP_SUPPORT,
RNS_UD_CS_SUPPORT_ERRINFO_PDU, [64]byte{}, 0, 0, 0}
}
func (data *ClientCoreData) Pack() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(CS_CORE, buff) // 01C0
core.WriteUInt16LE(0xd8, buff) // d800
struc.Pack(buff, data)
return buff.Bytes()
}
type ClientNetworkData struct {
ChannelCount uint32
ChannelDefArray []ChannelDef
}
func NewClientNetworkData() *ClientNetworkData {
n := &ClientNetworkData{ChannelDefArray: make([]ChannelDef, 0, 100)}
/*var d1 ChannelDef
d1.Name = plugin.RDPDR_SVC_CHANNEL_NAME
d1.Options = uint32(CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP |
CHANNEL_OPTION_COMPRESS_RDP)
n.ChannelDefArray = append(n.ChannelDefArray, d1)
var d2 ChannelDef
d2.Name = plugin.RDPSND_SVC_CHANNEL_NAME
d2.Options = uint32(CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP |
CHANNEL_OPTION_COMPRESS_RDP | CHANNEL_OPTION_SHOW_PROTOCOL)
n.ChannelDefArray = append(n.ChannelDefArray, d2)*/
return n
}
func (n *ClientNetworkData) AddVirtualChannel(name string, option uint32) {
var d ChannelDef
d.Name = name
d.Options = option
n.ChannelDefArray = append(n.ChannelDefArray, d)
n.ChannelCount++
}
func (n *ClientNetworkData) Pack() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(CS_NET, buff) // type
length := uint16(n.ChannelCount*12 + 8)
core.WriteUInt16LE(length, buff) // len 8
core.WriteUInt32LE(n.ChannelCount, buff)
for i := 0; i < int(n.ChannelCount); i++ {
v := n.ChannelDefArray[i]
name := make([]byte, 8)
copy(name, []byte(v.Name))
core.WriteBytes(name[:], buff)
core.WriteUInt32LE(v.Options, buff)
}
return buff.Bytes()
}
type ClientSecurityData struct {
EncryptionMethods uint32
ExtEncryptionMethods uint32
}
func NewClientSecurityData() *ClientSecurityData {
return &ClientSecurityData{
ENCRYPTION_FLAG_40BIT | ENCRYPTION_FLAG_56BIT | ENCRYPTION_FLAG_128BIT,
00}
}
func (d *ClientSecurityData) Pack() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(CS_SECURITY, buff) // type
core.WriteUInt16LE(0x0c, buff) // len 12
core.WriteUInt32LE(d.EncryptionMethods, buff)
core.WriteUInt32LE(d.ExtEncryptionMethods, buff)
return buff.Bytes()
}
type RSAPublicKey struct {
Magic uint32 `struc:"little"` //0x31415352
Keylen uint32 `struc:"little,sizeof=Modulus"`
Bitlen uint32 `struc:"little"`
Datalen uint32 `struc:"little"`
PubExp uint32 `struc:"little"`
Modulus []byte `struc:"little"`
Padding []byte `struc:"[8]byte"`
}
type ProprietaryServerCertificate struct {
DwSigAlgId uint32 `struc:"little"` //0x00000001
DwKeyAlgId uint32 `struc:"little"` //0x00000001
PublicKeyBlobType uint16 `struc:"little"` //0x0006
PublicKeyBlobLen uint16 `struc:"little,sizeof=PublicKeyBlob"`
PublicKeyBlob RSAPublicKey `struc:"little"`
SignatureBlobType uint16 `struc:"little"` //0x0008
SignatureBlobLen uint16 `struc:"little,sizeof=SignatureBlob"`
SignatureBlob []byte `struc:"little"`
//PaddingLen uint16 `struc:"little,sizeof=Padding,skip"`
Padding []byte `struc:"[8]byte"`
}
func (p *ProprietaryServerCertificate) GetPublicKey() (*rsa.PublicKey, error) {
b := new(big.Int).SetBytes(core.Reverse(p.PublicKeyBlob.Modulus))
e := new(big.Int).SetInt64(int64(p.PublicKeyBlob.PubExp))
return &rsa.PublicKey{N: b, E: int(e.Int64())}, nil
}
func (p *ProprietaryServerCertificate) Verify() bool {
return true
}
func (p *ProprietaryServerCertificate) Encrypt() []byte {
//todo
return nil
}
func (p *ProprietaryServerCertificate) Unpack(r io.Reader) error {
p.DwSigAlgId, _ = core.ReadUInt32LE(r)
p.DwKeyAlgId, _ = core.ReadUInt32LE(r)
p.PublicKeyBlobType, _ = core.ReadUint16LE(r)
p.PublicKeyBlobLen, _ = core.ReadUint16LE(r)
var b RSAPublicKey
b.Magic, _ = core.ReadUInt32LE(r)
b.Keylen, _ = core.ReadUInt32LE(r)
b.Bitlen, _ = core.ReadUInt32LE(r)
b.Datalen, _ = core.ReadUInt32LE(r)
b.PubExp, _ = core.ReadUInt32LE(r)
b.Modulus, _ = core.ReadBytes(int(b.Keylen)-8, r)
b.Padding, _ = core.ReadBytes(8, r)
p.PublicKeyBlob = b
p.SignatureBlobType, _ = core.ReadUint16LE(r)
p.SignatureBlobLen, _ = core.ReadUint16LE(r)
p.SignatureBlob, _ = core.ReadBytes(int(p.SignatureBlobLen)-8, r)
p.Padding, _ = core.ReadBytes(8, r)
return nil
}
type CertBlob struct {
CbCert uint32 `struc:"little,sizeof=AbCert"`
AbCert []byte `struc:"little"`
}
type X509CertificateChain struct {
NumCertBlobs uint32 `struc:"little,sizeof=CertBlobArray"`
CertBlobArray []CertBlob `struc:"little"`
Padding []byte `struc:"[12]byte"`
}
func (x *X509CertificateChain) GetPublicKey() (*rsa.PublicKey, error) {
if len(x.CertBlobArray) == 0 {
return nil, errors.New("empty certificate chain")
}
data := x.CertBlobArray[len(x.CertBlobArray)-1].AbCert
cert, err := x509.ParseCertificate(data)
if err != nil {
return nil, fmt.Errorf("parse certificate: %w", err)
}
if cert.PublicKey == nil {
var pubKeyInfo struct {
Algorithm pkix.AlgorithmIdentifier
SubjectPublicKey asn1.BitString
}
_, err = asn1.Unmarshal(cert.RawSubjectPublicKeyInfo, &pubKeyInfo)
if err != nil {
return nil, fmt.Errorf("unmarshal public key info: %w", err)
}
rsaPublicKey, err := x509.ParsePKCS1PublicKey(pubKeyInfo.SubjectPublicKey.Bytes)
if err != nil {
return nil, fmt.Errorf("parse PKCS1 public key: %w", err)
}
return rsaPublicKey, nil
}
rsaPublicKey, ok := cert.PublicKey.(*rsa.PublicKey)
if !ok {
return nil, fmt.Errorf("unsupported public key type: %T", cert.PublicKey)
}
return rsaPublicKey, nil
}
func (x *X509CertificateChain) Verify() bool {
return true
}
func (x *X509CertificateChain) Encrypt() []byte {
//todo
return nil
}
func (x *X509CertificateChain) Unpack(r io.Reader) error {
return struc.Unpack(r, x)
}
type ServerCoreData struct {
RdpVersion VERSION `struc:"uint32,little"`
ClientRequestedProtocol uint32 `struc:"little"`
EarlyCapabilityFlags uint32 `struc:"little"`
}
func NewServerCoreData() *ServerCoreData {
return &ServerCoreData{
RDP_VERSION_5_PLUS, 0, 0}
}
func (d *ServerCoreData) Serialize() []byte {
return []byte{}
}
func (d *ServerCoreData) ScType() Message {
return SC_CORE
}
func (d *ServerCoreData) Unpack(r io.Reader) error {
version, _ := core.ReadUInt32LE(r)
d.RdpVersion = VERSION(version)
d.ClientRequestedProtocol, _ = core.ReadUInt32LE(r)
d.EarlyCapabilityFlags, _ = core.ReadUInt32LE(r)
return nil
//return struc.Unpack(r, d)
}
type ServerNetworkData struct {
MCSChannelId uint16 `struc:"little"`
ChannelCount uint16 `struc:"little,sizeof=ChannelIdArray"`
ChannelIdArray []uint16 `struc:"little"`
}
func NewServerNetworkData() *ServerNetworkData {
return &ServerNetworkData{}
}
func (d *ServerNetworkData) ScType() Message {
return SC_NET
}
func (d *ServerNetworkData) Unpack(r io.Reader) error {
return struc.Unpack(r, d)
}
type CertData interface {
GetPublicKey() (*rsa.PublicKey, error)
Verify() bool
Unpack(io.Reader) error
}
type ServerCertificate struct {
DwVersion uint32
CertData CertData
}
func (sc *ServerCertificate) Unpack(r io.Reader) error {
sc.DwVersion, _ = core.ReadUInt32LE(r)
var cd CertData
switch CertificateType(sc.DwVersion & 0x7fffffff) {
case CERT_CHAIN_VERSION_1:
glog.Debug("ProprietaryServerCertificate")
cd = &ProprietaryServerCertificate{}
case CERT_CHAIN_VERSION_2:
glog.Debug("X509CertificateChain")
cd = &X509CertificateChain{}
default:
glog.Error("Unsupported version:", sc.DwVersion&0x7fffffff)
return errors.New("Unsupported version")
}
if cd != nil {
err := cd.Unpack(r)
if err != nil {
glog.Error("Unpack:", err)
return err
}
}
sc.CertData = cd
return nil
}
type ServerSecurityData struct {
EncryptionMethod uint32 `struc:"little"`
EncryptionLevel uint32 `struc:"little"`
ServerRandomLen uint32 //0x00000020
ServerCertLen uint32
ServerRandom []byte
ServerCertificate ServerCertificate
}
func NewServerSecurityData() *ServerSecurityData {
return &ServerSecurityData{
0, 0, 0x00000020, 0, []byte{}, ServerCertificate{}}
}
func (d *ServerSecurityData) ScType() Message {
return SC_SECURITY
}
func (s *ServerSecurityData) Unpack(r io.Reader) error {
s.EncryptionMethod, _ = core.ReadUInt32LE(r)
s.EncryptionLevel, _ = core.ReadUInt32LE(r)
if !(s.EncryptionMethod == 0 && s.EncryptionLevel == 0) {
s.ServerRandomLen, _ = core.ReadUInt32LE(r)
s.ServerCertLen, _ = core.ReadUInt32LE(r)
s.ServerRandom, _ = core.ReadBytes(int(s.ServerRandomLen), r)
var sc ServerCertificate
data, _ := core.ReadBytes(int(s.ServerCertLen), r)
rd := bytes.NewReader(data)
err := sc.Unpack(rd)
if err != nil {
return err
}
s.ServerCertificate = sc
}
return nil
}
func MakeConferenceCreateRequest(userData []byte) []byte {
buff := &bytes.Buffer{}
per.WriteChoice(0, buff) // 00
per.WriteObjectIdentifier(t124_02_98_oid, buff) // 05:00:14:7c:00:01
per.WriteLength(len(userData)+14, buff)
per.WriteChoice(0, buff) // 00
per.WriteSelection(0x08, buff) // 08
per.WriteNumericString("1", 1, buff) // 00 10
per.WritePadding(1, buff) // 00
per.WriteNumberOfSet(1, buff) // 01
per.WriteChoice(0xc0, buff) // c0
per.WriteOctetStream(h221_cs_key, 4, buff) // 00 44:75:63:61
per.WriteOctetStream(string(userData), 0, buff)
return buff.Bytes()
}
type ScData interface {
ScType() Message
Unpack(io.Reader) error
}
func ReadConferenceCreateResponse(data []byte) []interface{} {
ret := make([]interface{}, 0, 3)
r := bytes.NewReader(data)
per.ReadChoice(r)
if !per.ReadObjectIdentifier(r, t124_02_98_oid) {
glog.Error("NODE_RDP_PROTOCOL_T125_GCC_BAD_OBJECT_IDENTIFIER_T124")
return ret
}
per.ReadLength(r)
per.ReadChoice(r)
per.ReadInteger16(r)
per.ReadInteger(r)
per.ReadEnumerates(r)
per.ReadNumberOfSet(r)
per.ReadChoice(r)
if !per.ReadOctetStream(r, h221_sc_key, 4) {
glog.Error("NODE_RDP_PROTOCOL_T125_GCC_BAD_H221_SC_KEY")
return ret
}
ln, _ := per.ReadLength(r)
for ln > 0 {
t, _ := core.ReadUint16LE(r)
glog.Debugf("Message type 0x%x,ln:%v", t, ln)
l, _ := core.ReadUint16LE(r)
dataBytes, _ := core.ReadBytes(int(l)-4, r)
ln = ln - l
var d ScData
switch Message(t) {
case SC_CORE:
d = &ServerCoreData{}
case SC_SECURITY:
d = &ServerSecurityData{}
case SC_NET:
d = &ServerNetworkData{}
default:
glog.Error("Unknown type", t)
continue
}
if d != nil {
r := bytes.NewReader(dataBytes)
err := d.Unpack(r)
if err != nil {
glog.Warn("Unpack:", err)
}
ret = append(ret, d)
}
}
return ret
}
+558
View File
@@ -0,0 +1,558 @@
package t125
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"io"
"reflect"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/ber"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/per"
)
// take idea from https://github.com/Madnikulin50/gordp
// Multiple Channel Service layer
type MCSMessage uint8
const (
MCS_TYPE_CONNECT_INITIAL MCSMessage = 0x65
MCS_TYPE_CONNECT_RESPONSE = 0x66
)
type MCSDomainPDU uint16
const (
ERECT_DOMAIN_REQUEST MCSDomainPDU = 1
DISCONNECT_PROVIDER_ULTIMATUM = 8
ATTACH_USER_REQUEST = 10
ATTACH_USER_CONFIRM = 11
CHANNEL_JOIN_REQUEST = 14
CHANNEL_JOIN_CONFIRM = 15
SEND_DATA_REQUEST = 25
SEND_DATA_INDICATION = 26
)
const (
MCS_GLOBAL_CHANNEL_ID uint16 = 1003
MCS_USERCHANNEL_BASE = 1001
)
const (
GLOBAL_CHANNEL_NAME = "global"
)
/**
* Format MCS PDULayer header packet
* @param mcsPdu {integer}
* @param options {integer}
* @returns {type.UInt8} headers
*/
func writeMCSPDUHeader(mcsPdu MCSDomainPDU, options uint8, w io.Writer) {
core.WriteUInt8((uint8(mcsPdu)<<2)|options, w)
}
func readMCSPDUHeader(options uint8, mcsPdu MCSDomainPDU) bool {
return (options >> 2) == uint8(mcsPdu)
}
type DomainParameters struct {
MaxChannelIds int
MaxUserIds int
MaxTokenIds int
NumPriorities int
MinThoughput int
MaxHeight int
MaxMCSPDUsize int
ProtocolVersion int
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
func NewDomainParameters(
maxChannelIds int,
maxUserIds int,
maxTokenIds int,
numPriorities int,
minThoughput int,
maxHeight int,
maxMCSPDUsize int,
protocolVersion int) *DomainParameters {
return &DomainParameters{maxChannelIds, maxUserIds, maxTokenIds,
numPriorities, minThoughput, maxHeight, maxMCSPDUsize, protocolVersion}
}
func (d *DomainParameters) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteInteger(d.MaxChannelIds, buff)
ber.WriteInteger(d.MaxUserIds, buff)
ber.WriteInteger(d.MaxTokenIds, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(0, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(d.MaxMCSPDUsize, buff)
ber.WriteInteger(2, buff)
return buff.Bytes()
}
func ReadDomainParameters(r io.Reader) (*DomainParameters, error) {
if !ber.ReadUniversalTag(ber.TAG_SEQUENCE, true, r) {
return nil, errors.New("bad BER tags")
}
d := &DomainParameters{}
ber.ReadLength(r)
d.MaxChannelIds, _ = ber.ReadInteger(r)
d.MaxUserIds, _ = ber.ReadInteger(r)
d.MaxTokenIds, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
d.MaxMCSPDUsize, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
return d, nil
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @param userData {Buffer}
* @returns {asn1.univ.Sequence}
*/
type ConnectInitial struct {
CallingDomainSelector []byte
CalledDomainSelector []byte
UpwardFlag bool
TargetParameters DomainParameters
MinimumParameters DomainParameters
MaximumParameters DomainParameters
UserData []byte
}
func NewConnectInitial(userData []byte) ConnectInitial {
return ConnectInitial{[]byte{0x1},
[]byte{0x1},
true,
*NewDomainParameters(34, 2, 0, 1, 0, 1, 0xffff, 2),
*NewDomainParameters(1, 1, 1, 1, 0, 1, 0x420, 2),
*NewDomainParameters(0xffff, 0xfc17, 0xffff, 1, 0, 1, 0xffff, 2),
userData}
}
func (c *ConnectInitial) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteOctetstring(string(c.CallingDomainSelector), buff)
ber.WriteOctetstring(string(c.CalledDomainSelector), buff)
ber.WriteBoolean(c.UpwardFlag, buff)
ber.WriteEncodedDomainParams(c.TargetParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MinimumParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MaximumParameters.BER(), buff)
ber.WriteOctetstring(string(c.UserData), buff)
return buff.Bytes()
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
type ConnectResponse struct {
result uint8
calledConnectId int
domainParameters *DomainParameters
userData []byte
}
func NewConnectResponse(userData []byte) *ConnectResponse {
return &ConnectResponse{0,
0,
NewDomainParameters(22, 3, 0, 1, 0, 1, 0xfff8, 2),
userData}
}
func ReadConnectResponse(r io.Reader) (*ConnectResponse, error) {
c := &ConnectResponse{}
var err error
_, err = ber.ReadApplicationTag(MCS_TYPE_CONNECT_RESPONSE, r)
if err != nil {
return nil, err
}
c.result, err = ber.ReadEnumerated(r)
if err != nil {
return nil, err
}
c.calledConnectId, err = ber.ReadInteger(r)
c.domainParameters, err = ReadDomainParameters(r)
if err != nil {
return nil, err
}
if !ber.ReadUniversalTag(ber.TAG_OCTET_STRING, false, r) {
return nil, errors.New("invalid expected BER tag")
}
dataLen, _ := ber.ReadLength(r)
c.userData, err = core.ReadBytes(dataLen, r)
return c, err
}
type MCSChannelInfo struct {
ID uint16
Name string
}
type MCS struct {
emission.Emitter
transport core.Transport
recvOpCode MCSDomainPDU
sendOpCode MCSDomainPDU
channels []MCSChannelInfo
}
func NewMCS(t core.Transport, recvOpCode MCSDomainPDU, sendOpCode MCSDomainPDU) *MCS {
m := &MCS{
*emission.NewEmitter(),
t,
recvOpCode,
sendOpCode,
[]MCSChannelInfo{{MCS_GLOBAL_CHANNEL_ID, GLOBAL_CHANNEL_NAME}},
}
m.transport.On("close", func() {
m.Emit("close")
}).On("error", func(err error) {
m.Emit("error", err)
})
return m
}
func (x *MCS) Read(b []byte) (n int, err error) {
return x.transport.Read(b)
}
func (x *MCS) Write(b []byte) (n int, err error) {
return x.transport.Write(b)
}
func (m *MCS) Close() error {
return m.transport.Close()
}
type MCSClient struct {
*MCS
clientCoreData *gcc.ClientCoreData
clientNetworkData *gcc.ClientNetworkData
clientSecurityData *gcc.ClientSecurityData
serverCoreData *gcc.ServerCoreData
serverNetworkData *gcc.ServerNetworkData
serverSecurityData *gcc.ServerSecurityData
channelsConnected int
userId uint16
nbChannelRequested int
}
func NewMCSClient(t core.Transport) *MCSClient {
c := &MCSClient{
MCS: NewMCS(t, SEND_DATA_INDICATION, SEND_DATA_REQUEST),
clientCoreData: gcc.NewClientCoreData(),
clientNetworkData: gcc.NewClientNetworkData(),
clientSecurityData: gcc.NewClientSecurityData(),
userId: 1 + MCS_USERCHANNEL_BASE,
}
c.transport.On("connect", c.connect)
return c
}
func (c *MCSClient) SetClientCoreData(width, height uint16) {
c.clientCoreData.DesktopWidth = width
c.clientCoreData.DesktopHeight = height
}
func (c *MCSClient) connect(selectedProtocol uint32) {
glog.Debug("mcs client on connect", selectedProtocol)
c.clientCoreData.ServerSelectedProtocol = selectedProtocol
glog.Debugf("clientCoreData:%+v", c.clientCoreData)
glog.Debugf("clientNetworkData:%+v", c.clientNetworkData)
glog.Debugf("clientSecurityData:%+v", c.clientSecurityData)
// sendConnectclientCoreDataInitial
userDataBuff := bytes.Buffer{}
userDataBuff.Write(c.clientCoreData.Pack())
userDataBuff.Write(c.clientNetworkData.Pack())
userDataBuff.Write(c.clientSecurityData.Pack())
ccReq := gcc.MakeConferenceCreateRequest(userDataBuff.Bytes())
connectInitial := NewConnectInitial(ccReq)
connectInitialBerEncoded := connectInitial.BER()
dataBuff := &bytes.Buffer{}
ber.WriteApplicationTag(uint8(MCS_TYPE_CONNECT_INITIAL), len(connectInitialBerEncoded), dataBuff)
dataBuff.Write(connectInitialBerEncoded)
_, err := c.transport.Write(dataBuff.Bytes())
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs sendConnectInitial write error %v", err)))
return
}
glog.Debug("mcs wait for data event")
c.transport.Once("data", c.recvConnectResponse)
}
func (c *MCSClient) recvConnectResponse(s []byte) {
glog.Debug("mcs recvConnectResponse", hex.EncodeToString(s))
cResp, err := ReadConnectResponse(bytes.NewReader(s))
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("ReadConnectResponse %v", err)))
return
}
// record server gcc block
serverSettings := gcc.ReadConferenceCreateResponse(cResp.userData)
for _, v := range serverSettings {
switch v.(type) {
case *gcc.ServerSecurityData:
c.serverSecurityData = v.(*gcc.ServerSecurityData)
case *gcc.ServerCoreData:
c.serverCoreData = v.(*gcc.ServerCoreData)
case *gcc.ServerNetworkData:
c.serverNetworkData = v.(*gcc.ServerNetworkData)
default:
err := errors.New(fmt.Sprintf("unhandle server gcc block %v", reflect.TypeOf(v)))
glog.Error(err)
c.Emit("error", err)
return
}
}
glog.Debugf("serverSecurityData: %+v", c.serverSecurityData)
glog.Debugf("serverCoreData: %+v", c.serverCoreData)
glog.Info("version", c.serverCoreData.RdpVersion, c.serverCoreData.ClientRequestedProtocol)
glog.Debugf("serverNetworkData: %+v", c.serverNetworkData)
glog.Debug("mcs sendErectDomainRequest")
c.sendErectDomainRequest()
glog.Debug("mcs sendAttachUserRequest")
c.sendAttachUserRequest()
c.transport.Once("data", c.recvAttachUserConfirm)
}
func (c *MCSClient) sendErectDomainRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ERECT_DOMAIN_REQUEST, 0, buff)
per.WriteInteger(0, buff)
per.WriteInteger(0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) sendAttachUserRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ATTACH_USER_REQUEST, 0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvAttachUserConfirm(s []byte) {
glog.Debug("mcs recvAttachUserConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, ATTACH_USER_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_BAD_HEADER"))
return
}
e, err := per.ReadEnumerates(r)
if err != nil {
c.Emit("error", err)
return
}
if e != 0 {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_REJECT_USER'"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
c.userId = userId
c.channels = append(c.channels, MCSChannelInfo{userId, "user"})
c.connectChannels()
}
func (c *MCSClient) connectChannels() {
glog.Debug("mcs connectChannels:", c.channelsConnected, ":", len(c.channels))
if c.channelsConnected == len(c.channels) && c.serverNetworkData != nil {
if c.nbChannelRequested < int(c.serverNetworkData.ChannelCount) {
//static virtual channel
chanId := c.serverNetworkData.ChannelIdArray[c.nbChannelRequested]
c.nbChannelRequested++
c.sendChannelJoinRequest(chanId)
c.transport.Once("data", c.recvChannelJoinConfirm)
return
}
c.transport.On("data", c.recvData)
// send client and sever gcc informations callback to sec
clientData := make([]interface{}, 0)
clientData = append(clientData, c.clientCoreData)
clientData = append(clientData, c.clientSecurityData)
clientData = append(clientData, c.clientNetworkData)
serverData := make([]interface{}, 0)
serverData = append(serverData, c.serverCoreData)
serverData = append(serverData, c.serverSecurityData)
glog.Debug("msc connectChannels callback to sec")
c.Emit("connect", clientData, serverData, c.userId, c.channels)
return
}
// sendChannelJoinRequest
glog.Debug("sendChannelJoinRequest:", c.channels[c.channelsConnected].Name)
c.sendChannelJoinRequest(c.channels[c.channelsConnected].ID)
c.transport.Once("data", c.recvChannelJoinConfirm)
}
func (c *MCSClient) sendChannelJoinRequest(channelId uint16) {
glog.Debug("mcs sendChannelJoinRequest", channelId)
buff := &bytes.Buffer{}
writeMCSPDUHeader(CHANNEL_JOIN_REQUEST, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvData(s []byte) {
glog.Debug("msc on data recvData:", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if readMCSPDUHeader(option, DISCONNECT_PROVIDER_ULTIMATUM) {
c.Emit("error", errors.New("MCS DISCONNECT_PROVIDER_ULTIMATUM"))
c.transport.Close()
return
} else if !readMCSPDUHeader(option, c.recvOpCode) {
c.Emit("error", errors.New("Invalid expected MCS opcode receive data"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
channelId, _ := per.ReadInteger16(r)
per.ReadEnumerates(r)
size, _ := per.ReadLength(r)
// channel ID doesn't match a requested layer
found := false
channelName := ""
for _, channel := range c.channels {
if channel.ID == channelId {
found = true
channelName = channel.Name
break
}
}
if !found {
glog.Error("mcs receive data for an unconnected layer")
return
}
left, err := core.ReadBytes(int(size), r)
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs recvData get data error %v", err)))
return
}
glog.Debugf("mcs emit channel<%s>:%v", channelName, left)
c.Emit("sec", channelName, left)
}
func (c *MCSClient) recvChannelJoinConfirm(s []byte) {
glog.Debug("mcs recvChannelJoinConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, CHANNEL_JOIN_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_WAIT_CHANNEL_JOIN_CONFIRM"))
return
}
confirm, _ := per.ReadEnumerates(r)
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
if c.userId != userId {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_INVALID_USER_ID"))
return
}
channelId, _ := per.ReadInteger16(r)
if (confirm != 0) && (channelId == uint16(MCS_GLOBAL_CHANNEL_ID) || channelId == c.userId) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_MUST_CONFIRM_STATIC_CHANNEL"))
return
}
glog.Debug("Confirm channelId:", channelId)
if confirm == 0 && c.serverNetworkData != nil {
for i := 0; i < int(c.serverNetworkData.ChannelCount); i++ {
if channelId == c.serverNetworkData.ChannelIdArray[i] {
var t MCSChannelInfo
t.ID = channelId
t.Name = string(c.clientNetworkData.ChannelDefArray[i].Name[:])
c.channels = append(c.channels, t)
}
}
}
c.channelsConnected++
c.connectChannels()
}
func (c *MCSClient) Pack(data []byte, channelId uint16) []byte {
buff := &bytes.Buffer{}
writeMCSPDUHeader(c.sendOpCode, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
core.WriteUInt8(0x70, buff)
per.WriteLength(len(data), buff)
core.WriteBytes(data, buff)
glog.Debug("MCSClient write", channelId, ":", hex.EncodeToString(buff.Bytes()))
return buff.Bytes()
}
func (c *MCSClient) Write(data []byte) (n int, err error) {
data = c.Pack(data, c.channels[0].ID)
return c.transport.Write(data)
}
func (c *MCSClient) SendToChannel(channel string, data []byte) (n int, err error) {
channelId := c.channels[0].ID
for _, ch := range c.channels {
if channel == ch.Name {
channelId = ch.ID
break
}
}
data = c.Pack(data, channelId)
return c.transport.Write(data)
}
+574
View File
@@ -0,0 +1,574 @@
package t125
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"io"
"reflect"
"github.com/xxx/wscan/mylib/grdp/plugin/rail"
"github.com/xxx/wscan/mylib/grdp/plugin/drdynvc"
"github.com/xxx/wscan/mylib/grdp/core"
"github.com/xxx/wscan/mylib/grdp/emission"
"github.com/xxx/wscan/mylib/grdp/glog"
"github.com/xxx/wscan/mylib/grdp/protocol/t125/ber"
"github.com/xxx/wscan/mylib/grdp/protocol/t125/gcc"
"github.com/xxx/wscan/mylib/grdp/protocol/t125/per"
)
// take idea from https://github.com/Madnikulin50/gordp
// Multiple Channel Service layer
type MCSMessage uint8
const (
MCS_TYPE_CONNECT_INITIAL MCSMessage = 0x65
MCS_TYPE_CONNECT_RESPONSE = 0x66
)
type MCSDomainPDU uint16
const (
ERECT_DOMAIN_REQUEST MCSDomainPDU = 1
DISCONNECT_PROVIDER_ULTIMATUM = 8
ATTACH_USER_REQUEST = 10
ATTACH_USER_CONFIRM = 11
CHANNEL_JOIN_REQUEST = 14
CHANNEL_JOIN_CONFIRM = 15
SEND_DATA_REQUEST = 25
SEND_DATA_INDICATION = 26
)
const (
MCS_GLOBAL_CHANNEL_ID uint16 = 1003
MCS_USERCHANNEL_BASE = 1001
)
const (
GLOBAL_CHANNEL_NAME = "global"
)
/**
* Format MCS PDULayer header packet
* @param mcsPdu {integer}
* @param options {integer}
* @returns {type.UInt8} headers
*/
func writeMCSPDUHeader(mcsPdu MCSDomainPDU, options uint8, w io.Writer) {
core.WriteUInt8((uint8(mcsPdu)<<2)|options, w)
}
func readMCSPDUHeader(options uint8, mcsPdu MCSDomainPDU) bool {
return (options >> 2) == uint8(mcsPdu)
}
type DomainParameters struct {
MaxChannelIds int
MaxUserIds int
MaxTokenIds int
NumPriorities int
MinThoughput int
MaxHeight int
MaxMCSPDUsize int
ProtocolVersion int
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
func NewDomainParameters(
maxChannelIds int,
maxUserIds int,
maxTokenIds int,
numPriorities int,
minThoughput int,
maxHeight int,
maxMCSPDUsize int,
protocolVersion int) *DomainParameters {
return &DomainParameters{maxChannelIds, maxUserIds, maxTokenIds,
numPriorities, minThoughput, maxHeight, maxMCSPDUsize, protocolVersion}
}
func (d *DomainParameters) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteInteger(d.MaxChannelIds, buff)
ber.WriteInteger(d.MaxUserIds, buff)
ber.WriteInteger(d.MaxTokenIds, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(0, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(d.MaxMCSPDUsize, buff)
ber.WriteInteger(2, buff)
return buff.Bytes()
}
func ReadDomainParameters(r io.Reader) (*DomainParameters, error) {
if !ber.ReadUniversalTag(ber.TAG_SEQUENCE, true, r) {
return nil, errors.New("bad BER tags")
}
d := &DomainParameters{}
ber.ReadLength(r)
d.MaxChannelIds, _ = ber.ReadInteger(r)
d.MaxUserIds, _ = ber.ReadInteger(r)
d.MaxTokenIds, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
d.MaxMCSPDUsize, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
return d, nil
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @param userData {Buffer}
* @returns {asn1.univ.Sequence}
*/
type ConnectInitial struct {
CallingDomainSelector []byte
CalledDomainSelector []byte
UpwardFlag bool
TargetParameters DomainParameters
MinimumParameters DomainParameters
MaximumParameters DomainParameters
UserData []byte
}
func NewConnectInitial(userData []byte) ConnectInitial {
return ConnectInitial{[]byte{0x1},
[]byte{0x1},
true,
*NewDomainParameters(34, 2, 0, 1, 0, 1, 0xffff, 2),
*NewDomainParameters(1, 1, 1, 1, 0, 1, 0x420, 2),
*NewDomainParameters(0xffff, 0xfc17, 0xffff, 1, 0, 1, 0xffff, 2),
userData}
}
func (c *ConnectInitial) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteOctetstring(string(c.CallingDomainSelector), buff)
ber.WriteOctetstring(string(c.CalledDomainSelector), buff)
ber.WriteBoolean(c.UpwardFlag, buff)
ber.WriteEncodedDomainParams(c.TargetParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MinimumParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MaximumParameters.BER(), buff)
ber.WriteOctetstring(string(c.UserData), buff)
return buff.Bytes()
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
type ConnectResponse struct {
result uint8
calledConnectId int
domainParameters *DomainParameters
userData []byte
}
func NewConnectResponse(userData []byte) *ConnectResponse {
return &ConnectResponse{0,
0,
NewDomainParameters(22, 3, 0, 1, 0, 1, 0xfff8, 2),
userData}
}
func ReadConnectResponse(r io.Reader) (*ConnectResponse, error) {
c := &ConnectResponse{}
var err error
_, err = ber.ReadApplicationTag(MCS_TYPE_CONNECT_RESPONSE, r)
if err != nil {
return nil, err
}
c.result, err = ber.ReadEnumerated(r)
if err != nil {
return nil, err
}
c.calledConnectId, err = ber.ReadInteger(r)
c.domainParameters, err = ReadDomainParameters(r)
if err != nil {
return nil, err
}
if !ber.ReadUniversalTag(ber.TAG_OCTET_STRING, false, r) {
return nil, errors.New("invalid expected BER tag")
}
dataLen, _ := ber.ReadLength(r)
c.userData, err = core.ReadBytes(dataLen, r)
return c, err
}
type MCSChannelInfo struct {
ID uint16
Name string
}
type MCS struct {
emission.Emitter
transport core.Transport
recvOpCode MCSDomainPDU
sendOpCode MCSDomainPDU
channels []MCSChannelInfo
}
func NewMCS(t core.Transport, recvOpCode MCSDomainPDU, sendOpCode MCSDomainPDU) *MCS {
m := &MCS{
*emission.NewEmitter(),
t,
recvOpCode,
sendOpCode,
[]MCSChannelInfo{{MCS_GLOBAL_CHANNEL_ID, GLOBAL_CHANNEL_NAME}},
}
m.transport.On("close", func() {
m.Emit("close")
}).On("error", func(err error) {
m.Emit("error", err)
})
return m
}
func (x *MCS) Read(b []byte) (n int, err error) {
return x.transport.Read(b)
}
func (x *MCS) Write(b []byte) (n int, err error) {
return x.transport.Write(b)
}
func (m *MCS) Close() error {
return m.transport.Close()
}
type MCSClient struct {
*MCS
clientCoreData *gcc.ClientCoreData
clientNetworkData *gcc.ClientNetworkData
clientSecurityData *gcc.ClientSecurityData
serverCoreData *gcc.ServerCoreData
serverNetworkData *gcc.ServerNetworkData
serverSecurityData *gcc.ServerSecurityData
channelsConnected int
userId uint16
nbChannelRequested int
}
func NewMCSClient(t core.Transport) *MCSClient {
c := &MCSClient{
MCS: NewMCS(t, SEND_DATA_INDICATION, SEND_DATA_REQUEST),
clientCoreData: gcc.NewClientCoreData(),
clientNetworkData: gcc.NewClientNetworkData(),
clientSecurityData: gcc.NewClientSecurityData(),
userId: 1 + MCS_USERCHANNEL_BASE,
}
c.transport.On("connect", c.connect)
return c
}
func (c *MCSClient) SetClientDesktop(width, height uint16) {
c.clientCoreData.DesktopWidth = width
c.clientCoreData.DesktopHeight = height
}
func (c *MCSClient) SetClientDynvcProtocol() {
c.clientCoreData.EarlyCapabilityFlags = gcc.RNS_UD_CS_SUPPORT_DYNVC_GFX_PROTOCOL
c.clientNetworkData.AddVirtualChannel(drdynvc.ChannelName, drdynvc.ChannelOption)
}
func (c *MCSClient) SetClientRemoteProgram() {
c.clientNetworkData.AddVirtualChannel(rail.ChannelName, rail.ChannelOption)
}
func (c *MCSClient) SetClientCliprdr() {
//c.clientNetworkData.AddVirtualChannel(cliprdr.ChannelName, cliprdr.ChannelOption)
}
func (c *MCSClient) connect(selectedProtocol uint32) {
glog.Debug("mcs client on connect", selectedProtocol)
c.clientCoreData.ServerSelectedProtocol = selectedProtocol
glog.Debugf("clientCoreData:%+v", c.clientCoreData)
glog.Debugf("clientNetworkData:%+v", c.clientNetworkData)
glog.Debugf("clientSecurityData:%+v", c.clientSecurityData)
// sendConnectclientCoreDataInitial
userDataBuff := bytes.Buffer{}
userDataBuff.Write(c.clientCoreData.Pack())
userDataBuff.Write(c.clientNetworkData.Pack())
userDataBuff.Write(c.clientSecurityData.Pack())
ccReq := gcc.MakeConferenceCreateRequest(userDataBuff.Bytes())
connectInitial := NewConnectInitial(ccReq)
connectInitialBerEncoded := connectInitial.BER()
dataBuff := &bytes.Buffer{}
ber.WriteApplicationTag(uint8(MCS_TYPE_CONNECT_INITIAL), len(connectInitialBerEncoded), dataBuff)
dataBuff.Write(connectInitialBerEncoded)
_, err := c.transport.Write(dataBuff.Bytes())
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs sendConnectInitial write error %v", err)))
return
}
glog.Debug("mcs wait for data event")
c.transport.Once("data", c.recvConnectResponse)
}
func (c *MCSClient) recvConnectResponse(s []byte) {
glog.Trace("mcs recvConnectResponse", hex.EncodeToString(s))
cResp, err := ReadConnectResponse(bytes.NewReader(s))
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("ReadConnectResponse %v", err)))
return
}
// record server gcc block
serverSettings := gcc.ReadConferenceCreateResponse(cResp.userData)
for _, v := range serverSettings {
switch v.(type) {
case *gcc.ServerSecurityData:
c.serverSecurityData = v.(*gcc.ServerSecurityData)
case *gcc.ServerCoreData:
c.serverCoreData = v.(*gcc.ServerCoreData)
case *gcc.ServerNetworkData:
c.serverNetworkData = v.(*gcc.ServerNetworkData)
default:
err := errors.New(fmt.Sprintf("unhandle server gcc block %v", reflect.TypeOf(v)))
glog.Error(err)
c.Emit("error", err)
return
}
}
glog.Debugf("serverSecurityData: %+v", c.serverSecurityData)
glog.Debugf("serverCoreData: %+v", c.serverCoreData)
glog.Debugf("serverNetworkData: %+v", c.serverNetworkData)
glog.Debug("mcs sendErectDomainRequest")
c.sendErectDomainRequest()
glog.Debug("mcs sendAttachUserRequest")
c.sendAttachUserRequest()
c.transport.Once("data", c.recvAttachUserConfirm)
}
func (c *MCSClient) sendErectDomainRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ERECT_DOMAIN_REQUEST, 0, buff)
per.WriteInteger(0, buff)
per.WriteInteger(0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) sendAttachUserRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ATTACH_USER_REQUEST, 0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvAttachUserConfirm(s []byte) {
glog.Debug("mcs recvAttachUserConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, ATTACH_USER_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_BAD_HEADER"))
return
}
e, err := per.ReadEnumerates(r)
if err != nil {
c.Emit("error", err)
return
}
if e != 0 {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_REJECT_USER'"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
c.userId = userId
c.channels = append(c.channels, MCSChannelInfo{userId, "user"})
c.connectChannels()
}
func (c *MCSClient) connectChannels() {
glog.Debug("mcs connectChannels:", c.channelsConnected, ":", len(c.channels))
if c.channelsConnected == len(c.channels) {
if c.nbChannelRequested < int(c.serverNetworkData.ChannelCount) {
//static virtual channel
chanId := c.serverNetworkData.ChannelIdArray[c.nbChannelRequested]
c.nbChannelRequested++
c.sendChannelJoinRequest(chanId)
c.transport.Once("data", c.recvChannelJoinConfirm)
return
}
c.transport.On("data", c.recvData)
// send client and sever gcc informations callback to sec
clientData := make([]interface{}, 0)
clientData = append(clientData, c.clientCoreData)
clientData = append(clientData, c.clientSecurityData)
clientData = append(clientData, c.clientNetworkData)
serverData := make([]interface{}, 0)
serverData = append(serverData, c.serverCoreData)
serverData = append(serverData, c.serverSecurityData)
glog.Debug("msc connectChannels callback to sec")
c.Emit("connect", clientData, serverData, c.userId, c.channels)
return
}
// sendChannelJoinRequest
glog.Debug("sendChannelJoinRequest:", c.channels[c.channelsConnected].Name)
c.sendChannelJoinRequest(c.channels[c.channelsConnected].ID)
c.transport.Once("data", c.recvChannelJoinConfirm)
}
func (c *MCSClient) sendChannelJoinRequest(channelId uint16) {
glog.Debug("mcs sendChannelJoinRequest", channelId)
buff := &bytes.Buffer{}
writeMCSPDUHeader(CHANNEL_JOIN_REQUEST, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvData(s []byte) {
glog.Trace("msc on data recvData:", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if readMCSPDUHeader(option, DISCONNECT_PROVIDER_ULTIMATUM) {
c.Emit("error", errors.New("MCS DISCONNECT_PROVIDER_ULTIMATUM"))
c.transport.Close()
return
} else if !readMCSPDUHeader(option, c.recvOpCode) {
c.Emit("error", errors.New("Invalid expected MCS opcode receive data"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
channelId, _ := per.ReadInteger16(r)
per.ReadEnumerates(r)
size, _ := per.ReadLength(r)
// channel ID doesn't match a requested layer
found := false
channelName := ""
for _, channel := range c.channels {
if channel.ID == channelId {
found = true
channelName = channel.Name
break
}
}
if !found {
glog.Error("mcs receive data for an unconnected layer")
return
}
left, err := core.ReadBytes(int(size), r)
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs recvData get data error %v", err)))
return
}
glog.Debugf("mcs emit channel<%s>", channelName)
c.Emit("sec", channelName, left)
}
func (c *MCSClient) recvChannelJoinConfirm(s []byte) {
glog.Debug("mcs recvChannelJoinConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, CHANNEL_JOIN_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_WAIT_CHANNEL_JOIN_CONFIRM"))
return
}
confirm, _ := per.ReadEnumerates(r)
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
if c.userId != userId {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_INVALID_USER_ID"))
return
}
channelId, _ := per.ReadInteger16(r)
if (confirm != 0) && (channelId == uint16(MCS_GLOBAL_CHANNEL_ID) || channelId == c.userId) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_MUST_CONFIRM_STATIC_CHANNEL"))
return
}
glog.Debug("Confirm channelId:", channelId)
if confirm == 0 {
for i := 0; i < int(c.serverNetworkData.ChannelCount); i++ {
if channelId == c.serverNetworkData.ChannelIdArray[i] {
var t MCSChannelInfo
t.ID = channelId
t.Name = string(c.clientNetworkData.ChannelDefArray[i].Name[:])
c.channels = append(c.channels, t)
}
}
}
c.channelsConnected++
c.connectChannels()
}
func (c *MCSClient) Pack(data []byte, channelId uint16) []byte {
buff := &bytes.Buffer{}
writeMCSPDUHeader(c.sendOpCode, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
core.WriteUInt8(0x70, buff)
per.WriteLength(len(data), buff)
core.WriteBytes(data, buff)
glog.Trace("MCSClient write", channelId, ":", hex.EncodeToString(buff.Bytes()))
return buff.Bytes()
}
func (c *MCSClient) Write(data []byte) (n int, err error) {
data = c.Pack(data, c.channels[0].ID)
return c.transport.Write(data)
}
func (c *MCSClient) SendToChannel(channel string, data []byte) (n int, err error) {
channelId := c.channels[0].ID
for _, ch := range c.channels {
if channel == ch.Name {
channelId = ch.ID
break
}
}
data = c.Pack(data, channelId)
return c.transport.Write(data)
}
+203
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package per
import (
"bytes"
"io"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/core"
)
func ReadEnumerates(r io.Reader) (uint8, error) {
return core.ReadUInt8(r)
}
func WriteInteger(n int, w io.Writer) {
if n <= 0xff {
WriteLength(1, w)
core.WriteUInt8(uint8(n), w)
} else if n <= 0xffff {
WriteLength(2, w)
core.WriteUInt16BE(uint16(n), w)
} else {
WriteLength(4, w)
core.WriteUInt32BE(uint32(n), w)
}
}
func ReadInteger16(r io.Reader) (uint16, error) {
return core.ReadUint16BE(r)
}
func WriteInteger16(value uint16, w io.Writer) {
core.WriteUInt16BE(value, w)
}
/**
* @param choice {integer}
* @returns {type.UInt8} choice per encoded
*/
func WriteChoice(choice uint8, w io.Writer) {
core.WriteUInt8(choice, w)
}
/**
* @param value {raw} value to convert to per format
* @returns type objects per encoding value
*/
func WriteLength(value int, w io.Writer) {
if value > 0x7f {
core.WriteUInt16BE(uint16(value|0x8000), w)
} else {
core.WriteUInt8(uint8(value), w)
}
}
func ReadLength(r io.Reader) (uint16, error) {
b, err := core.ReadUInt8(r)
if err != nil {
return 0, nil
}
var size uint16
if b&0x80 > 0 {
b = b &^ 0x80
size = uint16(b) << 8
left, _ := core.ReadUInt8(r)
size += uint16(left)
} else {
size = uint16(b)
}
return size, nil
}
/**
* @param oid {array} oid to write
* @returns {type.Component} per encoded object identifier
*/
func WriteObjectIdentifier(oid []byte, w io.Writer) {
core.WriteUInt8(5, w)
core.WriteByte((oid[0]<<4)&(oid[1]&0x0f), w)
core.WriteByte(oid[2], w)
core.WriteByte(oid[3], w)
core.WriteByte(oid[4], w)
core.WriteByte(oid[5], w)
}
/**
* @param selection {integer}
* @returns {type.UInt8} per encoded selection
*/
func WriteSelection(selection uint8, w io.Writer) {
core.WriteUInt8(selection, w)
}
func WriteNumericString(s string, minValue int, w io.Writer) {
length := len(s)
mLength := minValue
if length >= minValue {
mLength = length - minValue
}
buff := &bytes.Buffer{}
for i := 0; i < length; i += 2 {
c1 := int(s[i])
c2 := 0x30
if i+1 < length {
c2 = int(s[i+1])
}
c1 = (c1 - 0x30) % 10
c2 = (c2 - 0x30) % 10
core.WriteUInt8(uint8((c1<<4)|c2), buff)
}
WriteLength(mLength, w)
w.Write(buff.Bytes())
}
func WritePadding(length int, w io.Writer) {
b := make([]byte, length)
w.Write(b)
}
func WriteNumberOfSet(n int, w io.Writer) {
core.WriteUInt8(uint8(n), w)
}
/**
* @param oStr {String}
* @param minValue {integer} default 0
* @returns {type.Component} per encoded octet stream
*/
func WriteOctetStream(oStr string, minValue int, w io.Writer) {
length := len(oStr)
mlength := minValue
if length-minValue >= 0 {
mlength = length - minValue
}
WriteLength(mlength, w)
w.Write([]byte(oStr)[:length])
}
func ReadChoice(r io.Reader) uint8 {
choice, _ := core.ReadUInt8(r)
return choice
}
func ReadNumberOfSet(r io.Reader) uint8 {
choice, _ := core.ReadUInt8(r)
return choice
}
func ReadInteger(r io.Reader) uint32 {
size, _ := ReadLength(r)
switch size {
case 1:
ret, _ := core.ReadUInt8(r)
return uint32(ret)
case 2:
ret, _ := core.ReadUint16BE(r)
return uint32(ret)
case 4:
ret, _ := core.ReadUInt32BE(r)
return ret
default:
glog.Info("ReadInteger")
}
return 0
}
func ReadObjectIdentifier(r io.Reader, oid []byte) bool {
size, _ := ReadLength(r)
if size != 5 {
return false
}
a_oid := []byte{0, 0, 0, 0, 0, 0}
t12, _ := core.ReadByte(r)
a_oid[0] = t12 >> 4
a_oid[1] = t12 & 0x0f
a_oid[2], _ = core.ReadByte(r)
a_oid[3], _ = core.ReadByte(r)
a_oid[4], _ = core.ReadByte(r)
a_oid[5], _ = core.ReadByte(r)
for i, _ := range oid {
if oid[i] != a_oid[i] {
return false
}
}
return true
}
func ReadOctetStream(r io.Reader, s string, min int) bool {
ln, _ := ReadLength(r)
size := int(ln) + min
if size != len(s) {
return false
}
for i := 0; i < size; i++ {
b, _ := core.ReadByte(r)
if b != s[i] {
return false
}
}
return true
}
+482
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@@ -0,0 +1,482 @@
package tpkt
import (
"bytes"
"encoding/binary"
"encoding/hex"
"fmt"
"reflect"
"strings"
"time"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/nla"
)
// take idea from https://github.com/Madnikulin50/gordp
/**
* Type of tpkt packet
* Fastpath is use to shortcut RDP stack
* @see http://msdn.microsoft.com/en-us/library/cc240621.aspx
* @see http://msdn.microsoft.com/en-us/library/cc240589.aspx
*/
const (
FASTPATH_ACTION_FASTPATH = 0x0
FASTPATH_ACTION_X224 = 0x3
)
/**
* TPKT layer of rdp stack
*/
type TPKT struct {
emission.Emitter
Conn *core.SocketLayer
ntlm *nla.NTLMv2
secFlag byte
lastShortLength int
fastPathListener core.FastPathListener
ntlmSec *nla.NTLMv2Security
nlaAuthOnly bool // NLA仅验证模式:验证成功后立即断开,不建立会话
}
var OsVersion = map[string]string{
"3.10.511": "Windows NT 3.1",
"3.50.807": "Windows NT 3.5",
"3.10.528": "Windows NT 3.1, Service Pack 3",
"3.51.1057": "Windows NT 3.51",
"4.00.950": "Windows 95",
"4.0.1381": "Windows NT 4.0",
"4.10.1998": "Windows 98",
"4.10.2222": "Windows 98 Second Edition (SE)",
"5.0.2195": "Windows 2000",
"4.90.3000": "Windows Me",
"5.1.2600": "Windows XP/Windows XP, Service Pack 3",
"5.1.2600.1105": "Windows XP, Service Pack 1",
"5.2.3790": "Windows Server 2003/Windows Server 2003 R2/Windows Server 2003, Service Pack 2",
"5.1.2600.2180": "Windows XP, Service Pack 2",
"5.2.3790.1180": "Windows Server 2003, Service Pack 1",
"6.0.6000": "Windows Vista",
"5.2.4500": "Windows Home Server",
"6.0.6001": "Windows Vista, Service Pack 1/Windows Server 2008",
"6.0.6002": "Windows Vista, Service Pack 2/Windows Server 2008, Service Pack 2",
"6.1.7600": "Windows 7/Windows Server 2008 R2",
"6.1.7601": "Windows 7, Service Pack 1/Windows Server 2008 R2, Service Pack 1",
"6.1.8400": "Windows Home Server 2011",
"6.2.9200": "Windows Server 2012/Windows 8",
"6.3.9600": "Windows 8.1/Windows Server 2012 R2",
"10.0.10240": "Windows 10, Version 1507",
"10.0.10586": "Windows 10, Version 1511",
"10.0.14393": "Windows 10, Version 1607/Windows Server 2016, Version 1607",
"10.0.15063": "Windows 10, Version 1703",
"10.0.16299": "Windows 10, Version 1709",
"10.0.17134": "Windows 10, Version 1803",
"10.0.17763": "Windows Server 2019, Version 1809/Windows 10, Version 1809",
"6.0.6003": "Windows Server 2008, Service Pack 2, Rollup KB4489887",
"10.0.18362": "Windows 10, Version 1903",
"10.0.18363": "Windows 10, Version 1909/Windows Server, Version 1909",
"10.0.19041": "Windows 10, Version 2004/Windows Server, Version 2004",
"10.0.19042": "Windows 10, Version 20H2/Windows Server, Version 20H2",
"10.0.19043": "Windows 10, Version 21H1",
"10.0.20348": "Windows Server 2022",
"10.0.22000": "Windows 11, Version 21H2",
"10.0.19044": "Windows 10, Version 21H2",
}
func New(s *core.SocketLayer, ntlm *nla.NTLMv2) *TPKT {
t := &TPKT{
Emitter: *emission.NewEmitter(),
Conn: s,
secFlag: 0,
ntlm: ntlm}
core.StartReadBytes(2, s, t.recvHeader)
return t
}
func (t *TPKT) StartTLS() error {
return t.Conn.StartTLS()
}
// SetNLAAuthOnly 设置NLA仅验证模式
// 启用后,NLA认证成功即返回,不发送credentials建立会话,不会挤掉已登录用户
func (t *TPKT) SetNLAAuthOnly(authOnly bool) {
t.nlaAuthOnly = authOnly
}
func (t *TPKT) StartNLA() error {
err := t.StartTLS()
if err != nil {
glog.Info("start tls failed", err)
return err
}
req := nla.EncodeDERTRequest([]nla.Message{t.ntlm.GetNegotiateMessage()}, nil, nil)
_, err = t.Conn.Write(req)
if err != nil {
glog.Info("send NegotiateMessage", err)
return err
}
resp := make([]byte, 1024)
n, err := t.Conn.Read(resp)
if err != nil {
return fmt.Errorf("read %s", err)
} else {
glog.Debug("StartNLA Read success")
}
return t.recvChallenge(resp[:n])
}
func (t *TPKT) recvChallenge(data []byte) error {
//own add
glog.Debug("start recv challenge......")
info := make(map[string]any)
type NTLMChallenge struct {
Signature [8]byte
MessageType uint32
TargetNameLen uint16
TargetNameMaxLen uint16
TargetNameBufferOffset uint32
NegotiateFlags uint32
ServerChallenge uint64
Reserved uint64
TargetInfoLen uint16
TargetInfoMaxLen uint16
TargetInfoBufferOffset uint32
Version [8]byte
// Payload (variable)
}
var challengeLen = 56
challengeStartOffset := bytes.Index(data, []byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0})
if challengeStartOffset == -1 {
}
if len(data) < challengeStartOffset+challengeLen {
return nil
}
var responseData NTLMChallenge
response := data[challengeStartOffset:]
responseBuf := bytes.NewBuffer(response)
err := binary.Read(responseBuf, binary.LittleEndian, &responseData)
if err != nil {
return err
}
// Check if valid NTLM challenge response message structure
if responseData.MessageType != 0x00000002 ||
responseData.Reserved != 0 ||
!reflect.DeepEqual(responseData.Version[4:], []byte{0, 0, 0, 0xF}) {
return nil
}
// Parse: Version
type version struct {
MajorVersion byte
MinorVersion byte
BuildNumber uint16
}
var versionData version
versionBuf := bytes.NewBuffer(responseData.Version[:4])
err = binary.Read(versionBuf, binary.LittleEndian, &versionData)
if err != nil {
return err
}
ProductVersion := fmt.Sprintf("%d.%d.%d", versionData.MajorVersion,
versionData.MinorVersion,
versionData.BuildNumber)
glog.Debug("get product version: Windows", ProductVersion)
info["ProductVersion"] = ProductVersion
v, ok := OsVersion[ProductVersion]
if ok {
info["OsVerion"] = v
glog.Debug("get os version:", v)
} else {
if versionData.BuildNumber >= 22000 {
info["OsVerion"] = fmt.Sprintf("Windows 11, version:%s", ProductVersion)
} else {
info["OsVerion"] = fmt.Sprintf("Windows %s", ProductVersion)
}
}
// Parse: TargetName
targetNameLen := int(responseData.TargetNameLen)
if targetNameLen > 0 {
startIdx := int(responseData.TargetNameBufferOffset)
endIdx := startIdx + targetNameLen
targetName := strings.ReplaceAll(string(response[startIdx:endIdx]), "\x00", "")
info["TargetName"] = targetName
glog.Debug("target Name = ", targetName)
}
// Parse: TargetInfo
AvIDMap := map[uint16]string{
1: "NetBIOSComputerName",
2: "NetBIOSDomainName",
3: "FQDN", // DNS Computer Name
4: "DNSDomainName",
5: "DNSTreeName",
7: "Timestamp",
9: "MsvAvTargetName",
}
type AVPair struct {
AvID uint16
AvLen uint16
// Value (variable)
}
var avPairLen = 4
targetInfoLen := int(responseData.TargetInfoLen)
if targetInfoLen > 0 {
startIdx := int(responseData.TargetInfoBufferOffset)
if startIdx+targetInfoLen > len(response) {
return fmt.Errorf("Invalid TargetInfoLen value")
}
var avPair AVPair
avPairBuf := bytes.NewBuffer(response[startIdx : startIdx+avPairLen])
err = binary.Read(avPairBuf, binary.LittleEndian, &avPair)
if err != nil {
return err
}
currIdx := startIdx
for avPair.AvID != 0 {
if field, exists := AvIDMap[avPair.AvID]; exists {
var value string
r := response[currIdx+avPairLen : currIdx+avPairLen+int(avPair.AvLen)]
if avPair.AvID == 7 {
unixStamp := binary.LittleEndian.Uint64(r)/10000000 - 11644473600
tm := time.Unix(int64(unixStamp), 0)
value = tm.Format("2006-01-02 15:04:05")
} else {
value = strings.ReplaceAll(string(r), "\x00", "")
}
info[field] = value
}
currIdx += avPairLen + int(avPair.AvLen)
if currIdx+avPairLen > startIdx+targetInfoLen {
return fmt.Errorf("Invalid AV_PAIR list")
}
avPairBuf = bytes.NewBuffer(response[currIdx : currIdx+avPairLen])
err = binary.Read(avPairBuf, binary.LittleEndian, &avPair)
if err != nil {
return err
}
}
}
glog.Info("get os info by NLA done !")
glog.Info("=======================================")
for key, value := range info {
glog.Info(key, ":", value)
}
glog.Info("=======================================")
//判断是否存在windows域
if netBiosDomainName, exists := info["NetBIOSDomainName"]; exists {
if netBiosComputerName, exists := info["NetBIOSComputerName"]; exists {
if netBiosDomainName == netBiosComputerName {
info["DNSDomainName"], info["NetBIOSDomainName"] = "WORKGROUP", "WORKGROUP"
//delete(info, "FQDN")
} else {
}
}
}
t.Emit("os_info", info)
// end
glog.Trace("recvChallenge", hex.EncodeToString(data))
tsreq, err := nla.DecodeDERTRequest(data)
if err != nil {
glog.Info("DecodeDERTRequest", err)
return err
}
glog.Debugf("tsreq:%+v", tsreq)
// get pubkey
pubkey, err := t.Conn.TlsPubKey()
glog.Debugf("pubkey=%+v", pubkey)
authMsg, ntlmSec := t.ntlm.GetAuthenticateMessage(tsreq.NegoTokens[0].Data)
t.ntlmSec = ntlmSec
encryptPubkey := ntlmSec.GssEncrypt(pubkey)
req := nla.EncodeDERTRequest([]nla.Message{authMsg}, nil, encryptPubkey)
_, err = t.Conn.Write(req)
if err != nil {
glog.Info("send AuthenticateMessage", err)
return err
}
resp := make([]byte, 1024)
n, err := t.Conn.Read(resp)
if err != nil {
glog.Error("Read:", err)
return fmt.Errorf("read %s", err)
} else {
glog.Debug("recvChallenge Read success")
}
return t.recvPubKeyInc(resp[:n])
}
// ErrNLAAuthSuccess 表示NLA仅验证模式下认证成功(非真正错误)
var ErrNLAAuthSuccess = fmt.Errorf("NLA_AUTH_SUCCESS")
func (t *TPKT) recvPubKeyInc(data []byte) error {
glog.Trace("recvPubKeyInc", hex.EncodeToString(data))
tsreq, err := nla.DecodeDERTRequest(data)
if err != nil {
glog.Info("DecodeDERTRequest", err)
return err
}
// 检查服务器是否返回错误码(认证失败)
// 常见错误码: 0xC000006D = STATUS_LOGON_FAILURE (密码错误)
if tsreq.ErrorCode != 0 {
glog.Error("NLA authentication failed with error code:", tsreq.ErrorCode)
return fmt.Errorf("NLA auth failed: error code %d (0x%X)", tsreq.ErrorCode, uint32(tsreq.ErrorCode))
}
// 验证 PubKeyAuth 不为空(认证成功的标志)
if len(tsreq.PubKeyAuth) == 0 {
glog.Error("NLA authentication failed: empty PubKeyAuth")
return fmt.Errorf("NLA auth failed: empty PubKeyAuth")
}
glog.Trace("PubKeyAuth:", tsreq.PubKeyAuth)
// 尝试解密验证公钥,但不作为强制失败条件
// 因为某些Windows版本的响应格式可能略有不同
pubkey := t.ntlmSec.GssDecrypt(tsreq.PubKeyAuth)
if pubkey == nil {
glog.Debug("GssDecrypt returned nil, but continuing since no ErrorCode was returned")
}
// NLA仅验证模式:凭据已验证成功,不发送credentials,直接返回
// 这样不会建立RDP会话,不会挤掉已登录用户
if t.nlaAuthOnly {
glog.Info("NLA auth-only mode: credentials verified, skipping session establishment")
return ErrNLAAuthSuccess
}
domain, username, password := t.ntlm.GetEncodedCredentials()
credentials := nla.EncodeDERTCredentials(domain, username, password)
authInfo := t.ntlmSec.GssEncrypt(credentials)
req := nla.EncodeDERTRequest(nil, authInfo, nil)
_, err = t.Conn.Write(req)
if err != nil {
glog.Info("send AuthenticateMessage", err)
return err
}
return nil
}
func (t *TPKT) Read(b []byte) (n int, err error) {
return t.Conn.Read(b)
}
func (t *TPKT) Write(data []byte) (n int, err error) {
buff := &bytes.Buffer{}
core.WriteUInt8(FASTPATH_ACTION_X224, buff)
core.WriteUInt8(0, buff)
core.WriteUInt16BE(uint16(len(data)+4), buff)
buff.Write(data)
glog.Trace("tpkt Write", hex.EncodeToString(buff.Bytes()))
return t.Conn.Write(buff.Bytes())
}
func (t *TPKT) Close() error {
return t.Conn.Close()
}
func (t *TPKT) SetFastPathListener(f core.FastPathListener) {
t.fastPathListener = f
}
func (t *TPKT) SendFastPath(secFlag byte, data []byte) (n int, err error) {
buff := &bytes.Buffer{}
core.WriteUInt8(FASTPATH_ACTION_FASTPATH|((secFlag&0x3)<<6), buff)
core.WriteUInt16BE(uint16(len(data)+3)|0x8000, buff)
buff.Write(data)
glog.Trace("TPTK SendFastPath", hex.EncodeToString(buff.Bytes()))
return t.Conn.Write(buff.Bytes())
}
func (t *TPKT) recvHeader(s []byte, err error) {
glog.Trace("tpkt recvHeader", hex.EncodeToString(s), err)
if err != nil {
t.Emit("error", err)
return
}
r := bytes.NewReader(s)
version, _ := core.ReadUInt8(r)
if version == FASTPATH_ACTION_X224 {
glog.Debug("tptk recvHeader FASTPATH_ACTION_X224, wait for recvExtendedHeader")
core.StartReadBytes(2, t.Conn, t.recvExtendedHeader)
} else {
glog.Debug("[-] !!!! version is not FASTPATH_ACTION_X224, version=", version)
t.secFlag = (version >> 6) & 0x3
length, _ := core.ReadUInt8(r)
t.lastShortLength = int(length)
glog.Debug("last read len:", length)
if t.lastShortLength&0x80 != 0 {
core.StartReadBytes(1, t.Conn, t.recvExtendedFastPathHeader)
} else {
//core.StartReadBytes(1, t.Conn, t.recvExtendedFastPathHeader)
if t.lastShortLength >= 2 {
core.StartReadBytes(t.lastShortLength-2, t.Conn, t.recvFastPath)
} else {
glog.Debug("lastShortLength = 0")
}
}
}
}
func (t *TPKT) recvExtendedHeader(s []byte, err error) {
glog.Trace("tpkt recvExtendedHeader", hex.EncodeToString(s), err)
if err != nil {
return
}
r := bytes.NewReader(s)
size, _ := core.ReadUint16BE(r)
glog.Debug("tpkt wait recvData:", size)
core.StartReadBytes(int(size-4), t.Conn, t.recvData)
}
func (t *TPKT) recvData(s []byte, err error) {
glog.Trace("tpkt recvData", hex.EncodeToString(s), err)
if err != nil {
return
}
t.Emit("data", s)
core.StartReadBytes(2, t.Conn, t.recvHeader)
}
func (t *TPKT) recvExtendedFastPathHeader(s []byte, err error) {
glog.Trace("tpkt recvExtendedFastPathHeader", hex.EncodeToString(s))
r := bytes.NewReader(s)
rightPart, err := core.ReadUInt8(r)
if err != nil {
glog.Error("TPTK recvExtendedFastPathHeader", err)
return
}
leftPart := t.lastShortLength & ^0x80
packetSize := (leftPart << 8) + int(rightPart)
if packetSize == 0 {
fmt.Println("get packetSize,rightPart=", packetSize, rightPart)
t.Emit("close")
} else {
core.StartReadBytes(packetSize-3, t.Conn, t.recvFastPath)
}
}
func (t *TPKT) recvFastPath(s []byte, err error) {
glog.Trace("tpkt recvFastPath")
if err != nil {
return
}
t.fastPathListener.RecvFastPath(t.secFlag, s)
core.StartReadBytes(2, t.Conn, t.recvHeader)
}
+431
View File
@@ -0,0 +1,431 @@
package x224
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/tpkt"
)
// take idea from https://github.com/Madnikulin50/gordp
/**
* Message type present in X224 packet header
*/
type MessageType byte
const (
TPDU_CONNECTION_REQUEST MessageType = 0xE0
TPDU_CONNECTION_CONFIRM = 0xD0
TPDU_DISCONNECT_REQUEST = 0x80
TPDU_DATA = 0xF0
TPDU_ERROR = 0x70
)
/**
* Type of negotiation present in negotiation packet
*/
type NegotiationType byte
const (
TYPE_RDP_NEG_REQ NegotiationType = 0x01
TYPE_RDP_NEG_RSP = 0x02
TYPE_RDP_NEG_FAILURE = 0x03
)
/**
* Protocols available for x224 layer
*/
const (
PROTOCOL_RDP uint32 = 0x00000000
PROTOCOL_SSL = 0x00000001
PROTOCOL_HYBRID = 0x00000002
PROTOCOL_HYBRID_EX = 0x00000008
)
/**
* Use to negotiate security layer of RDP stack
* In node-rdpjs only ssl is available
* @param opt {object} component type options
* @see request -> http://msdn.microsoft.com/en-us/library/cc240500.aspx
* @see response -> http://msdn.microsoft.com/en-us/library/cc240506.aspx
* @see failure ->http://msdn.microsoft.com/en-us/library/cc240507.aspx
*/
type Negotiation struct {
Type NegotiationType `struc:"byte"`
Flag uint8 `struc:"uint8"`
Length uint16 `struc:"little"`
Result uint32 `struc:"little"`
}
func NewNegotiation() *Negotiation {
return &Negotiation{0, 0, 0x0008 /*constant*/, PROTOCOL_RDP}
}
const (
//The server requires that the client support Enhanced RDP Security (section 5.4) with either TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) or CredSSP (section 5.4.5.2). If only CredSSP was requested then the server only supports TLS.
SSL_REQUIRED_BY_SERVER = 0x00000001
//The server is configured to only use Standard RDP Security mechanisms (section 5.3) and does not support any External Security Protocols (section 5.4.5).
SSL_NOT_ALLOWED_BY_SERVER = 0x00000002
//The server does not possess a valid authentication certificate and cannot initialize the External Security Protocol Provider (section 5.4.5).
SSL_CERT_NOT_ON_SERVER = 0x00000003
//The list of requested security protocols is not consistent with the current security protocol in effect. This error is only possible when the Direct Approach (sections 5.4.2.2 and 1.3.1.2) is used and an External Security Protocol (section 5.4.5) is already being used.
INCONSISTENT_FLAGS = 0x00000004
//The server requires that the client support Enhanced RDP Security (section 5.4) with CredSSP (section 5.4.5.2).
HYBRID_REQUIRED_BY_SERVER = 0x00000005
//The server requires that the client support Enhanced RDP Security (section 5.4) with TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) and certificate-based client authentication.<4>
SSL_WITH_USER_AUTH_REQUIRED_BY_SERVER = 0x00000006
)
/**
* X224 client connection request
* @param opt {object} component type options
* @see http://msdn.microsoft.com/en-us/library/cc240470.aspx
*/
type ClientConnectionRequestPDU struct {
Len uint8
Code MessageType
Padding1 uint16
Padding2 uint16
Padding3 uint8
Cookie []byte
requestedProtocol uint32
ProtocolNeg *Negotiation
}
func NewClientConnectionRequestPDU(cookie []byte, requestedProtocol uint32) *ClientConnectionRequestPDU {
x := ClientConnectionRequestPDU{0, TPDU_CONNECTION_REQUEST, 0, 0, 0,
cookie, requestedProtocol, NewNegotiation()}
x.Len = 6
if len(cookie) > 0 {
x.Len += uint8(len(cookie) + 2)
}
if x.requestedProtocol > PROTOCOL_RDP {
x.Len += 8
}
return &x
}
func (x *ClientConnectionRequestPDU) Serialize() []byte {
buff := &bytes.Buffer{}
core.WriteUInt8(x.Len, buff)
core.WriteUInt8(uint8(x.Code), buff)
core.WriteUInt16BE(x.Padding1, buff)
core.WriteUInt16BE(x.Padding2, buff)
core.WriteUInt8(x.Padding3, buff)
if len(x.Cookie) > 0 {
buff.Write(x.Cookie)
core.WriteUInt8(0x0D, buff)
core.WriteUInt8(0x0A, buff)
}
if x.requestedProtocol > PROTOCOL_RDP {
struc.Pack(buff, x.ProtocolNeg)
}
return buff.Bytes()
}
/**
* X224 Server connection confirm
* @param opt {object} component type options
* @see http://msdn.microsoft.com/en-us/library/cc240506.aspx
*/
type ServerConnectionConfirm struct {
Len uint8
Code MessageType
Padding1 uint16
Padding2 uint16
Padding3 uint8
ProtocolNeg *Negotiation
}
/**
* Header of each data message from x224 layer
* @returns {type.Component}
*/
type DataHeader struct {
Header uint8 `struc:"little"`
MessageType MessageType `struc:"uint8"`
Separator uint8 `struc:"little"`
}
func NewDataHeader() *DataHeader {
return &DataHeader{2, TPDU_DATA /* constant */, 0x80 /*constant*/}
}
/**
* Common X224 Automata
* @param presentation {Layer} presentation layer
*/
type X224 struct {
emission.Emitter
transport core.Transport
requestedProtocol uint32
selectedProtocol uint32
dataHeader *DataHeader
}
func New(t core.Transport) *X224 {
x := &X224{
*emission.NewEmitter(),
t,
PROTOCOL_RDP | PROTOCOL_SSL | PROTOCOL_HYBRID,
PROTOCOL_SSL,
NewDataHeader(),
}
t.On("close", func() {
x.Emit("close")
}).On("error", func(err error) {
x.Emit("error", err)
})
return x
}
func (x *X224) ServerChooseProtocol() uint32 {
return x.selectedProtocol
}
func (x *X224) Read(b []byte) (n int, err error) {
return x.transport.Read(b)
}
func (x *X224) Write(b []byte) (n int, err error) {
buff := &bytes.Buffer{}
err = struc.Pack(buff, x.dataHeader)
if err != nil {
return 0, err
}
buff.Write(b)
glog.Trace("x224 write:", hex.EncodeToString(buff.Bytes()))
return x.transport.Write(buff.Bytes())
}
func (x *X224) Close() error {
return x.transport.Close()
}
func (x *X224) SetRequestedProtocol(p uint32) {
x.requestedProtocol = p
}
func (x *X224) Connect() error {
if x.transport == nil {
return errors.New("no transport")
}
cookie := "Cookie: mstshash=bob"
message := NewClientConnectionRequestPDU([]byte(cookie), x.requestedProtocol)
message.ProtocolNeg.Type = TYPE_RDP_NEG_REQ
message.ProtocolNeg.Result = uint32(x.requestedProtocol)
glog.Debug("x224 sendConnectionRequest", hex.EncodeToString(message.Serialize()))
_, err := x.transport.Write(message.Serialize())
x.transport.Once("data", x.recvConnectionConfirm)
return err
}
func (x *X224) recvConnectionConfirm(s []byte) {
/*
在Windows的远程桌面协议(RDP)交互过程中,NLA是指网络级别身份验证(Network Level Authentication)。NLA是一种用于增强远程桌面连接安全性的机制。在启用了NLA的情况下,客户端必须在建立RDP会话之前通过网络级别的身份验证,这样可以防止未经授权的用户连接到远程桌面服务器。
NLA的优点
提高安全性:在建立RDP会话之前进行身份验证,确保只有经过验证的用户才能连接。
减少资源消耗:因为身份验证是在连接建立之前完成的,可以减少未授权用户消耗的系统资源。
RDP协议中的不同连接类型
RDP协议有几种不同的连接类型,它们在使用NLA方面有所不同:
PROTOCOL_RDP:标准的RDP连接方式。这是最早期的RDP连接类型,不使用任何额外的安全层。
PROTOCOL_SSL:使用SSL/TLS加密的RDP连接方式。这种方式可以增强连接的安全性。
PROTOCOL_HYBRID:混合连接方式,通常指的是使用NLA和TLS结合的连接方式。它先进行网络级别的身份验证(NLA),然后使用TLS加密传输数据。
PROTOCOL_HYBRID_EX:这是PROTOCOL_HYBRID的扩展版本,可能包含额外的安全特性或增强功能,具体细节通常会在相关文档中描述。
NLA与不同连接类型的关系
PROTOCOL_RDP:不使用NLA,因为这是最基本的连接方式。
PROTOCOL_SSL:可以与NLA结合使用。首先通过NLA进行身份验证,然后使用SSL/TLS加密数据传输。
PROTOCOL_HYBRID:使用NLA进行身份验证,然后通过TLS加密数据传输。因此,NLA在这种连接类型中是必需的。
PROTOCOL_HYBRID_EX:作为PROTOCOL_HYBRID的扩展版本,也可以使用NLA进行身份验证,并结合其他安全增强特性。
总的来说,除了最基本的PROTOCOL_RDP之外,其他连接类型(PROTOCOL_SSL、PROTOCOL_HYBRID、PROTOCOL_HYBRID_EX)都可以使用或要求使用NLA来提高连接的安全性。
*/
/*
总体而言,较早的Windows版本(如Windows 2000、Windows XP、Windows Server 2003等)默认使用基本的RDP协议(PROTOCOL_RDP),而现代的Windows版本(如Windows 7及之后的版本)默认启用网络级别身份验证(NLA)并支持SSL/TLS加密,以提高连接的安全性。具体的默认协议如下:
Windows 2000、Windows XP、Windows Server 2003 PROTOCOL_RDP
Windows Vista、Windows Server 2008 PROTOCOL_RDPNLA可配置)
Windows 7、Windows Server 2008 R2 PROTOCOL_HYBRID(默认启用NLA
Windows 8、Windows Server 2012 PROTOCOL_HYBRID(默认启用NLA
Windows 8.1、Windows Server 2012 R2 PROTOCOL_HYBRID(默认启用NLA
Windows 10、Windows Server 2016 PROTOCOL_HYBRID(默认启用NLA
Windows 101809及以上版本)、Windows Server 2019PROTOCOL_HYBRID(默认启用NLA
Windows 11、Windows Server 2022 PROTOCOL_HYBRID(默认启用NLA
*/
glog.Debug("x224 recvConnectionConfirm ", hex.EncodeToString(s))
r := bytes.NewReader(s)
ln, _ := core.ReadUInt8(r)
if ln > 6 {
message := &ServerConnectionConfirm{}
if err := struc.Unpack(bytes.NewReader(s), message); err != nil {
glog.Error("ReadServerConnectionConfirm err", err)
return
}
glog.Debugf("message: %+v", *message.ProtocolNeg)
if message.ProtocolNeg.Type == TYPE_RDP_NEG_FAILURE {
glog.Error(fmt.Sprintf("NODE_RDP_PROTOCOL_X224_NEG_FAILURE with code: %d,see https://msdn.microsoft.com/en-us/library/cc240507.aspx",
message.ProtocolNeg.Result))
//only use Standard RDP Security mechanisms
if message.ProtocolNeg.Result == 2 {
glog.Info("Only use Standard RDP Security mechanisms, Reconnect with Standard RDP")
}
switch message.ProtocolNeg.Result {
case SSL_REQUIRED_BY_SERVER:
// mean need use PROTOCOL_SSL
glog.Info("The server requires that the client support Enhanced RDP Security")
x.Emit("reconnect", PROTOCOL_SSL)
case SSL_NOT_ALLOWED_BY_SERVER:
// mean need to use PROTOCOL_RDP only
glog.Info("The server is configured to only use Standard RDP Security mechanisms")
x.Emit("reconnect", PROTOCOL_RDP)
case SSL_CERT_NOT_ON_SERVER:
glog.Info("The server does not possess a valid authentication certificate and cannot initialize the External Security Protocol Provider")
case INCONSISTENT_FLAGS:
glog.Info("The list of requested security protocols is not consistent with the current security protocol in effect. This error is only possible when the Direct Approach")
case HYBRID_REQUIRED_BY_SERVER:
glog.Info("The server requires that the client support Enhanced RDP Security (section 5.4) with CredSSP (section 5.4.5.2).")
x.Emit("reconnect", PROTOCOL_HYBRID)
case SSL_WITH_USER_AUTH_REQUIRED_BY_SERVER:
glog.Info("The server requires that the client support Enhanced RDP Security (section 5.4) with TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) and certificate-based client authentication.<4>")
x.Emit("reconnect", PROTOCOL_SSL)
////The server requires that the client support Enhanced RDP Security (section 5.4) with either TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) or CredSSP (section 5.4.5.2). If only CredSSP was requested then the server only supports TLS.
// SSL_REQUIRED_BY_SERVER = 0x00000001
//
// //The server is configured to only use Standard RDP Security mechanisms (section 5.3) and does not support any External Security Protocols (section 5.4.5).
// SSL_NOT_ALLOWED_BY_SERVER = 0x00000002
//
// //The server does not possess a valid authentication certificate and cannot initialize the External Security Protocol Provider (section 5.4.5).
// SSL_CERT_NOT_ON_SERVER = 0x00000003
//
// //The list of requested security protocols is not consistent with the current security protocol in effect. This error is only possible when the Direct Approach (sections 5.4.2.2 and 1.3.1.2) is used and an External Security Protocol (section 5.4.5) is already being used.
// INCONSISTENT_FLAGS = 0x00000004
//
// //The server requires that the client support Enhanced RDP Security (section 5.4) with CredSSP (section 5.4.5.2).
// HYBRID_REQUIRED_BY_SERVER = 0x00000005
//
// //The server requires that the client support Enhanced RDP Security (section 5.4) with TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) and certificate-based client authentication.<4>
// SSL_WITH_USER_AUTH_REQUIRED_BY_SERVER = 0x00000006
}
x.Close()
return
}
if message.ProtocolNeg.Type == TYPE_RDP_NEG_RSP {
glog.Info("TYPE_RDP_NEG_RSP", message.ProtocolNeg.Result)
x.selectedProtocol = message.ProtocolNeg.Result
}
} else {
x.selectedProtocol = PROTOCOL_RDP
}
serverChooseProtocol := "other not support protocol"
switch x.selectedProtocol {
case PROTOCOL_RDP:
serverChooseProtocol = "PROTOCOL_RDP"
x.Emit("more_timeout")
case PROTOCOL_SSL:
serverChooseProtocol = "PROTOCOL_SSL"
case PROTOCOL_HYBRID:
serverChooseProtocol = "PROTOCOL_HYBRID"
case PROTOCOL_HYBRID_EX:
serverChooseProtocol = "PROTOCOL_HYBRID_EX"
}
glog.Info("Server choose protocol:", serverChooseProtocol)
//if x.selectedProtocol == PROTOCOL_HYBRID_EX {
// glog.Error("NODE_RDP_PROTOCOL_HYBRID_EX_NOT_SUPPORTED")
// return
//}
if x.selectedProtocol == PROTOCOL_HYBRID_EX {
glog.Info("*** NLA Security selected ***")
err := x.transport.(*tpkt.TPKT).StartNLA()
glog.Debug("nla end, err?:", err)
if err != nil {
x.transport.Emit("close")
glog.Error("start NLA failed:", err)
return
}
x.Emit("connect", uint32(x.selectedProtocol))
return
}
x.transport.On("data", x.recvData)
if x.selectedProtocol == PROTOCOL_RDP {
glog.Info("*** RDP security selected ***")
x.Emit("connect", x.selectedProtocol)
return
}
if x.selectedProtocol == PROTOCOL_SSL {
glog.Info("*** SSL security selected ***")
err := x.transport.(*tpkt.TPKT).StartTLS()
if err != nil {
glog.Error("start tls failed:", err)
return
}
x.Emit("connect", x.selectedProtocol)
return
}
if x.selectedProtocol == PROTOCOL_HYBRID {
glog.Info("*** NLA Security selected ***")
err := x.transport.(*tpkt.TPKT).StartNLA()
glog.Debug("nla end, err?:", err)
if err != nil {
// 检查是否是NLA仅验证模式的成功返回
if err == tpkt.ErrNLAAuthSuccess {
glog.Info("NLA auth-only mode: credentials verified successfully")
x.Emit("error", err) // 通过 error 事件传播成功信号
return
}
glog.Error("start NLA failed:", err)
x.Emit("error", err)
return
}
x.Emit("connect", x.selectedProtocol)
return
}
}
func (x *X224) recvData(s []byte) {
glog.Trace("x224 recvData", hex.EncodeToString(s), "emit data")
// x224 header takes 3 bytes
x.Emit("data", s[3:])
}