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# Adminer远程文件读取CVE-2021-43008
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。
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。
参考链接:
- <https://github.com/p0dalirius/CVE-2021-43008-AdminerRead>
- <http://sansec.io/research/adminer-4.6.2-file-disclosure-vulnerability>
## 漏洞环境
执行如下命令启动Web服务其中包含Adminer 4.6.2
```
docker compose up -d
```
服务启动后,在`http://your-ip:8080`即可查看到Adminer的登录页面。
## Exploit
使用[mysql-fake-server](https://github.com/4ra1n/mysql-fake-server)启动一个恶意的MySQL服务器。在Adminer登录页面中填写恶意服务地址和用户名`fileread_/etc/passwd`
![](1.png)
可见,我们已经收到客户端连接,读取到的文件`/etc/passwd`已保存至当前目录:
![](2.png)