CVE-2024-28179

The impact of CVE-2024-28179 is severe. An attacker can exploit this vulnerability to gain unauthenticated access to websocket endpoints managed by Jupyter Server Proxy. This access can be leveraged to execute arbitrary code on the server, potentially compromising the entire Jupyter notebook environment. The attacker could steal sensitive data, modify notebooks, install malware, or even gain persistent access to the system. The blast radius extends to any user or system interacting with the vulnerable Jupyter Server Proxy instance, particularly those relying on websocket communication for data exchange or real-time interactions.

Organizations and individuals using Jupyter notebooks in production environments, particularly those relying on Jupyter Server Proxy for websocket communication, are at significant risk. Shared hosting environments where Jupyter notebooks are deployed could be particularly vulnerable, as attackers might exploit the vulnerability to compromise multiple users.

• python / jupyter:

import subprocess
result = subprocess.run(['jupyter', 'server', '--version'], capture_output=True, text=True)
if result.stdout.strip() <= '4.1.0':
    print("Vulnerable version detected!")

• linux / server:

ps aux | grep jupyter-server-proxy | grep -q 'websocket'
if [ $? -eq 0 ]; then
    echo "Jupyter Server Proxy with websocket enabled detected - investigate further!"
fi

• generic web:

curl -I http://<jupyter_server_proxy_url>/api/routes | grep -q 'websocket'
if [ $? -eq 0 ]; then
    echo "Websocket endpoint detected - potential vulnerability!"
fi

1. 2024-03-20Disclosure

   disclosure

1. Reserviert2024-03-06
2. Veröffentlicht2024-03-20
3. Geändert2026-02-04
4. EPSS aktualisiert2026-04-02

The primary mitigation for CVE-2024-28179 is to upgrade Jupyter Server Proxy to version 3.2.3 or later. If upgrading is not immediately feasible, consider implementing temporary workarounds such as restricting network access to the Jupyter Server Proxy endpoint using a firewall or intrusion prevention system. Review and strengthen authentication mechanisms for websocket endpoints. Monitor Jupyter Server Proxy logs for suspicious activity, particularly unauthorized access attempts. After upgrading, confirm the fix by attempting to access a websocket endpoint without authentication and verifying that access is denied.