CVE-2021-4034 PoC — polkit 缓冲区错误漏洞

Source

https://github.com/TomSgn/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 --> privilege escalation

File Snapshot


 [4.0K]  /data/pocs/f0058a1815fe506a8e0a71b979800a18cab8054a
├── [4.0K]  exploit
│   └── [  47]  gconv-modules
├── [4.0K]  GCONV_PATH=.
│   └── [   0]  exploit
├── [2.6K]  payload.py
└── [ 431]  payload.so

2 directories, 4 files

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