CVE-2022-0847 PoC — Linux kernel 安全漏洞

Source

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

Associated Vulnerability

Title:Linux kernel 安全漏洞 (CVE-2022-0847)
Description:Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于新管道缓冲区结构的“flag”变量在 Linux 内核中的 copy_page_to_iter_pipe 和 push_pipe 函数中缺乏正确初始化。非特权本地用户利用该漏洞可以提升权限至root。以下产品和版本受到影响：Linux Kernel 5.8-5.16.11、5.8-5.15.25、5.8-5.10.102。

Description

A root exploit for CVE-2022-0847 (Dirty Pipe)

Readme

```
gcc exploit.c -o exploit -std=c99

# 
./exploit 
Usage: ./exp TARGETFILE OFFSET DATA

# 在 /etc/passwd 文件里找到普通用户的 uid 偏移位置，把 uid 修改为 0 即可，重新登陆就是 root 权限

```

```
影响范围

Linux Kernel版本 >= 5.8

Linux Kernel版本 < 5.16.11 / 5.15.25 / 5.10.102
```

File Snapshot


 [4.0K]  /data/pocs/2da248c382b7d3a6b0b54178b9b41bff3d25395e
├── [4.6K]  exploit.c
└── [ 323]  README.md

0 directories, 2 files

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