CVE-2021-4034 PoC — polkit 缓冲区错误漏洞

Source

https://github.com/rvizx/CVE-2021-4034

Associated Vulnerability

Title:polkit 缓冲区错误漏洞 (CVE-2021-4034)
Description:polkit是一个在类 Unix操作系统中控制系统范围权限的组件。通过定义和审核权限规则，实现不同优先级进程间的通讯。 polkit 的 pkexec application存在缓冲区错误漏洞，攻击者可利用该漏洞通过精心设计环境变量诱导pkexec执行任意代码。成功执行攻击后，如果目标计算机上没有权限的用户拥有管理权限，攻击可能会导致本地权限升级。

Description

PoC for PwnKit: Local Privilege Escalation Vulnerability in polkit’s pkexec in Python

Readme

# CVE-2021-4034
PoC for PwnKit: Local Privilege Escalation Vulnerability in polkit’s pkexec in Python

![alt text](https://github.com/ravindubw/CVE-2021-4034/blob/main/img.gif?raw=true)

# Usage
```
git clone https://github.com/rvizx/CVE-2021-4034
cd CVE-2021-4034
python3 cve-2021-4034-poc.py
```

# Notes
C :
https://github.com/arthepsy/CVE-2021-4034 <br>

# Fix
```
sudo chmod 0755 /bin/pkexec
```

File Snapshot


 [4.0K]  /data/pocs/2a2b8d172bcf1bbb225fa29a013e071a646c4ff5
├── [1006]  cve-2021-4034-poc.py
├── [ 28K]  img.gif
└── [ 403]  README.md

0 directories, 3 files

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