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40 lines
1.2 KiB
Markdown
40 lines
1.2 KiB
Markdown
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# Adminer 远程文件读取 CVE-2021-43008
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## 漏洞描述
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Adminer是一个PHP编写的开源数据库管理工具,支持MySQL、MariaDB、PostgreSQL、SQLite、MS SQL、Oracle、Elasticsearch、MongoDB等数据库。
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在其版本1.12.0到4.6.2之间存在一处因为MySQL LOAD DATA LOCAL导致的文件读取漏洞。
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参考链接:
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- https://github.com/p0dalirius/CVE-2021-43008-AdminerRead
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- http://sansec.io/research/adminer-4.6.2-file-disclosure-vulnerability
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## 漏洞环境
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Vulhub执行如下命令启动Web服务,其中包含Adminer 4.6.2:
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```
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docker compose up -d
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```
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服务启动后,在`http://your-ip:8080`即可查看到Adminer的登录页面。
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## 漏洞复现
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使用[mysql-fake-server](https://github.com/4ra1n/mysql-fake-server)启动一个恶意的MySQL服务器。
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在Adminer登录页面中填写恶意服务地址和用户名`fileread_/etc/passwd`:
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可见,我们已经收到客户端连接。
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读取到的文件`/etc/passwd`已保存至当前目录:
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