# 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](https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/) 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
```
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