CVE-2023-2598 PoC — Linux kernel 缓冲区错误漏洞

Source

https://github.com/guard-wait/CVE-2023-2598_EXP

Associated Vulnerability

Title:Linux kernel 缓冲区错误漏洞 (CVE-2023-2598)
Description:A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.

Description

复现文章网上很多师傅有写，这里就不献丑了，本exploit交互使用的代码是kernel提供的做小改动，由于漏洞提供的原语比较强大，都能直接越界任意写一张内存页以上的空间，所以利用手法比较简单实用，选用的size是4k页大小，直接堆喷filp篡改/etc/passwd

Readme

# CVE-2023-2598_EXP
复现文章网上很多师傅有写，这里就不献丑了。本exploit交互使用的代码是kernel提供的做小改动，由于漏洞提供的原语比较强大，都能直接越界任意写一张内存页以上的空间，所以利用手法比较简单实用，选用的size是4k页大小，直接堆喷filp篡改/etc/passwd

exploit写的比较粗糙，更多是以供研究参考

File Snapshot


 [4.0K]  /data/pocs/680b4b0faa30f0aca8980f2fcc52a6356c785d77
├── [ 14M]  bzImage
├── [9.1K]  exp.c
├── [ 34K]  LICENSE
├── [ 409]  README.md
└── [103K]  win.png

1 directory, 5 files

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