CVE-2021-4034 PoC — polkit 缓冲区错误漏洞

Source

https://github.com/LJP-TW/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

pkexec EoP exploit

Readme

��# CVE-2021-4034

* ![](https://raw.githubusercontent.com/LJP-TW/CVE-2021-4034/main/demo.gif?token=GHSAT0AAAAAABIGS4A4Q53OLRW5VFQIHXF2YQPJNRQ)

* Writeup: https://ljp-tw.github.io/blog/CVE-2021-4034-Writeup/

File Snapshot


 [4.0K]  /data/pocs/195406d645bcff9d6ef29bb2bc662785c748ba13
├── [308K]  demo.gif
├── [ 17K]  exploit
├── [1.3K]  exploit.c
├── [ 418]  README.md
└── [4.0K]  yoyodiy
    ├── [  65]  gconv-modules
    ├── [  33]  Makefile
    ├── [ 543]  wtf.c
    └── [ 16K]  wtf.so

1 directory, 8 files

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