CVE-2021-4034 PoC — polkit 缓冲区错误漏洞

Source

https://github.com/moldabekov/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

Pseudopatch for CVE-2021-4034

Readme

# CVE-2021-4034

Basically it just removes SUID bit from `/usr/bin/pkexec` binary.

Could be useful, when you have a big park of personal PCs without orchestrated access and you don't want to share a root password with users.
Or you are just a Robin and want to pwn victims to help them.

File Snapshot


 [4.0K]  /data/pocs/2c6e937d6501af358eeee2baba89fe4747ca965e
├── [ 129]  Makefile
├── [ 829]  patch.c
├── [ 290]  payload.c
└── [ 289]  README.md

0 directories, 4 files

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