CVE-2023-25136 Proof-of-Concept

Overview

This is a DoS Proof-of-Concept of OpenSSH 9.1p1 Double-Free Vulnerability CVE-2023-25136.
It will trigger the double-free and cause an abort crash.
For a comprehensive understanding, check out the accompanying blog post for in-depth details.

Dependencies

• Python 3.6+
• paramiko Python Library

Usage

1. Verify paramiko is installed:

pip install paramiko

2. Change the VICTIM_IP to match your vulnerable OpenSSH Server IP.

3. Run the PoC:

python cve-2023-25136.py