CVE-2022-0847 PoC — Linux kernel 安全漏洞

Source

https://github.com/Mustafa1986/CVE-2022-0847-DirtyPipe-Exploit

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。

Readme

A vulnerability was found in Linux Kernel up to 5.10.101/5.15.24/5.16.10 (Operating System) and classified as critical. This issue affects some unknown processing of the component Pipe Handler. Impacted is confidentiality, integrity, and availability.

The weakness was presented 03/08/2022. The advisory is shared at dirtypipe.cm4all.com. The identification of this vulnerability is CVE-2022-0847. The exploitation is known to be easy. The attack may be initiated remotely. Required for exploitation is a simple authentication. Technical details are unknown but a public exploit is available.

Upgrading to version 5.10.102, 5.15.25 or 5.16.11 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at lore.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.
* POC https://github.com/Mustafa1986/CVE-2022-0847-DirtyPipe-Exploit/blob/main/CVE-2022-0847.gif

File Snapshot


 [4.0K]  /data/pocs/3c9251cd0911a6aa284a7b7ca7c775b091cc5a77
├── [ 86K]  CVE-2022-0847.gif
├── [4.9K]  dirtypipe.c
└── [ 959]  README.md

0 directories, 3 files

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