CVE-2021-4034 PoC — polkit 缓冲区错误漏洞

Source

https://github.com/Almorabea/pkexec-exploit

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

pwnkit: Local Privilege Escalation in polkit's pkexec (CVE-2021-4034)

Readme

# pkexec-exploit
Local Privilege Escalation in polkit's pkexec (CVE-2021-4034)

# Summary 
Polkit (formerly PolicyKit) is a component for controlling system-wide
privileges in Unix-like operating systems. It provides an organized way
for non-privileged processes to communicate with privileged ones

# Exploit Code Author
Ahmad Almorabea
@almorabea

# Usage
```
test@ubuntu:~/Desktop$ python3 CVE-2021-4034.py 
```


# Credit
Original research done by Qualys https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt
 - (blasty and Joe Ammond) for their great work

File Snapshot


 [4.0K]  /data/pocs/8df548251fb5071b30b36859962592ed24e2e7ac
├── [3.0K]  CVE-2021-4034.py
└── [ 566]  README.md

0 directories, 2 files

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