CVE-2024-44331

7.5 HIGH

📋 TL;DR

This vulnerability allows remote attackers to cause denial of service in GStreamer RTSP server by sending specially crafted hexstream requests. The incorrect access control in the RTSP media handling component can crash the server, affecting systems running GStreamer RTSP server 1.25.0.

💻 Affected Systems

Products:
  • GStreamer RTSP Server
Versions: 1.25.0
Operating Systems: Linux, Windows, macOS - any OS running GStreamer RTSP server
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems with RTSP server component enabled and exposed to network.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete service disruption of RTSP streaming services, potentially affecting multiple clients and applications relying on the server.

🟠

Likely Case

RTSP server crashes and becomes unavailable, requiring manual restart to restore service.

🟢

If Mitigated

Limited impact with proper network segmentation and monitoring allowing quick detection and response.

🌐 Internet-Facing: HIGH - Remote attackers can exploit this without authentication via network access.
🏢 Internal Only: MEDIUM - Internal attackers could still exploit, but requires network access to RTSP service.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Proof of concept available in GitHub repository showing simple hexstream manipulation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.25.1 or later

Vendor Advisory: https://gitlab.freedesktop.org/gstreamer/gst-rtsp-server/-/issues/

Restart Required: Yes

Instructions:

1. Update GStreamer RTSP server to version 1.25.1 or later. 2. Restart the RTSP server service. 3. Verify the update was successful.

🔧 Temporary Workarounds

Network Access Control

linux

Restrict network access to RTSP server using firewall rules

iptables -A INPUT -p tcp --dport 8554 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 8554 -j DROP

Service Isolation

linux

Run RTSP server in isolated network namespace or container

ip netns add rtsp-isolated
docker run --network=none -d gstreamer-rtsp

🧯 If You Can't Patch

  • Implement strict network segmentation to limit RTSP server exposure
  • Deploy intrusion detection monitoring for RTSP protocol anomalies

🔍 How to Verify

Check if Vulnerable:

Check GStreamer RTSP server version: gst-inspect-1.0 rtsp-server | grep version

Check Version:

gst-inspect-1.0 rtsp-server | grep version

Verify Fix Applied:

Verify version is 1.25.1 or later and test with sample RTSP requests

📡 Detection & Monitoring

Log Indicators:

  • RTSP server crash logs
  • Unexpected termination of gst-rtsp-server process
  • Error messages about hexstream parsing

Network Indicators:

  • Multiple malformed RTSP requests to port 8554
  • Unusual hex patterns in RTSP traffic

SIEM Query:

source="rtsp-server.log" AND ("crash" OR "segfault" OR "hexstream")

🔗 References

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