CVE-2024-3094 PoC — Xz: malicious code in distributed source

Source

https://github.com/Bella-Bc/xz-backdoor-CVE-2024-3094-Check

Associated Vulnerability

Title:Xz: malicious code in distributed source (CVE-2024-3094)
Description:Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library.

Description

Verify if your installed version of xz-utils is vulnerable to CVE-2024-3094 backdoor

Readme

# xz-backdoor-CVE-2024-3094-Check
Verify if your installed version of xz-utils is vulnerable to CVE-2024-3094 backdoor. This check is for Kali Linux or other Debian based installs.

## Usage
```
git https://github.com/Bella-Bc/xz-backdoor-CVE-2024-3094-Check.git
cd xz-backdoor-CVE-2024-3094-Check
chmod +x check_xz_utils_CVE-2024-3094.sh
./check_xz_utils_CVE-2024-3094.sh
```
![exampleTest_xz-backdoor](https://github.com/Bella-Bc/xz-backdoor-CVE-2024-3094-Check/assets/10534659/0adb1418-3844-4540-9382-9937a5c51d52)


## References
https://www.kali.org/blog/about-the-xz-backdoor/ <br><br>
https://gist.github.com/thesamesam/223949d5a074ebc3dce9ee78baad9e27<br><br>
https://arstechnica.com/security/2024/04/what-we-know-about-the-xz-utils-backdoor-that-almost-infected-the-world/

## CVE Overview
![overview](https://cdn.arstechnica.net/wp-content/uploads/2024/04/xz-backdoor-graphic-thomas-roccia-scaled.jpg)

File Snapshot


 [4.0K]  /data/pocs/2446f2400044169b761144a3c536cc41d761dfd0
├── [ 662]  check_xz_utils_CVE-2024-3094.sh
└── [ 912]  README.md

0 directories, 2 files

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