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

Source
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.
Readme
# CVE-2024-3094 vul check tools

This vulnerability allows an attacker to log into the server and execute arbitrary code without passing SSH authentication. For details, please see: https://www.openwall.com/lists/oss-security/2024/03/29/4

use
```bash
curl -fsSL https://raw.githubusercontent.com/wgetnz/CVE-2024-3094-check/main/CVE-2024-3094-check.sh| bash
```
OR
```bash
curl -fsSL  https://github.freedns.uk/https://raw.githubusercontent.com/wgetnz/CVE-2024-3094-check/main/CVE-2024-3094-check.sh| bash 
```

If your host is offline, please use the following command

For Debian/Ubuntu:
```bash
apt list --installed 2>&1 | grep xz | grep -E '5.6.0|5.6.1' && echo "Check your system now" || echo "Everything is ok"
```

For macOS:
```bash
brew info xz | grep xz | grep -E '5.6.0|5.6.1' && echo 'Check your system now' || echo 'Everything is ok'
```

How to fix:
Just downgrade xz-utils

macOS fix:
brew install xz

If you have any questions, please issue, If this project helps you, please give me a star
File Snapshot

[4.0K] /data/pocs/cc87a733248fe5d787506ff10ec7d43dc1c311e0 ├── [ 954] CVE-2024-3094-check.sh └── [1007] README.md 0 directories, 2 files
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