CVE-2022-0847 PoC — Linux kernel 安全漏洞

Source

https://github.com/r1is/CVE-2022-0847

Associated Vulnerability

Title:Linux kernel 安全漏洞 (CVE-2022-0847)
Description:A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

Description

CVE-2022-0847-DirtyPipe-Exploit   CVE-2022-0847 是存在于 Linux内核 5.8 及之后版本中的本地提权漏洞。攻击者通过利用此漏洞，可覆盖重写任意可读文件中的数据，从而可将普通权限的用户提升到特权 root。    CVE-2022-0847 的漏洞原理类似于 CVE-2016-5195 脏牛漏洞（Dirty Cow），但它更容易被利用。漏洞作者将此漏洞命名为“Dirty Pipe”

Readme

# CVE-2022-0847
CVE-2022-0847简单复现  

披露老哥原文地址：`https://dirtypipe.cm4all.com/`

## 复现环境
```bash
Linux kali 5.10.0-kali7-amd64 #1 SMP Debian 5.10.28-1kali1 (2021-04-12) x86_64 GNU/Linux
```

## 依赖

```bash
gcc
```
## 使用步骤
```bash
git clone https://github.com/imfiver/CVE-2022-0847.git
cd CVE-2022-0847
chmod +x Dirty-Pipe.sh
bash Dirty-Pipe.sh
```
 
<img src="https://user-images.githubusercontent.com/21257485/157100477-ec68c9a8-44c1-4dd4-ac4d-f70a08597359.png" style="zoom:30%" />

File Snapshot


 [4.0K]  /data/pocs/618549752781fa4b2e00712931ba3747daa23ced
├── [4.7K]  Dirty-Pipe.sh
└── [ 528]  README.md

0 directories, 2 files

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