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CVE-2022-0847 PoC — Linux kernel 安全漏洞

Source
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
An exploit for CVE-2022-0847 dirty-pipe vulnerability
Readme
# CVE-2022-0847-dirty-pipe-exploit
An exploit for CVE-2022-0847 dirty-pipe vulnerability

# How to use this
Compile with ```gcc exploit.c -o exploit``` (assumes gcc is installed)

Run ```./exploit``` and it'll pop a root shell

If you are getting error message like then,
Login as ```root``` with password ```cspshivam```

#### Then, restore ```/etc/passwd``` by running ```mv /tmp/passwd.bak /etc/passwd```
File Snapshot

[4.0K] /data/pocs/b412e2367079c32987c68c1396537dcb25a5e3e4 ├── [5.1K] exploit.c ├── [ 34K] LICENSE └── [ 408] README.md 0 directories, 3 files
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