关联漏洞
标题：
polkit 代码问题漏洞
(CVE-2021-3560)
描述：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 存在代码问题漏洞，该漏洞源于当请求进程在调用polkit_system_bus_name_get_creds_sync之前断开与dbus-daemon的连接时，该进程无法获得进程的唯一uid和pid，也无法验证请求进程的特权。
描述
Script Bash -- CVE-2021-3560
介绍
# Bash-CVE-2021-3560
POC Bash -- CVE-2021-3560
Polkit Local Privilege Escalation Exploit
This repository provides a ** bash exploit** for [CVE-2021-3560](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3560), a local privilege escalation vulnerability in **polkit** affecting many modern Linux distributions.
**!!!!!! Under test may cause instability !!!!!**
## 💥 Vulnerability Summary
Discovered by **Kevin Backhouse**, this vulnerability allows an unprivileged user to create accounts with administrative privileges via the `dbus` interface, by racing the polkit authorization check.
- **Vulnerable package**: `polkit <= 0.119`
- **CVE ID**: CVE-2021-3560
- **Impact**: Local Privilege Escalation (no authentication required)
- **CVSS**: 7.8 (High)
📰 [Original write-up by Kevin Backhouse (GitHub)](https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/)
## 🚀 Exploit Features
- Clean and readable bash script
- Configurable delay loop for race condition
- Stops after a defined number of failed attempts
- Silent execution (suppresses command spam)
- Automatically sets password for the new user
## 🔧 Usage
```bash
chmod +x exploit3560.sh
./exploit3560.sh
文件快照
[4.0K] /data/pocs/6481a1cc7f4c82b4d99949d385a377c48a63a76c
├── [2.9K] exploit3560.sh
└── [1.2K] README.md
0 directories, 2 files
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