CVE-2024-52052
📋 TL;DR
This vulnerability allows authenticated Wowza Streaming Engine Manager administrators to define malicious custom application properties that can poison stream targets, leading to remote code execution with high privileges. It affects Wowza Streaming Engine installations below version 4.9.1 where administrators have access to the Streaming Engine Manager interface.
💻 Affected Systems
- Wowza Streaming Engine
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining high-privilege remote code execution, potentially leading to data theft, service disruption, or lateral movement within the network.
Likely Case
Authenticated administrators (including compromised accounts) could execute arbitrary code on the streaming server, potentially disrupting streaming services or accessing sensitive configuration data.
If Mitigated
With proper access controls and monitoring, impact is limited to authorized administrators who would need to intentionally exploit the vulnerability.
🎯 Exploit Status
Exploitation requires authenticated administrator access and knowledge of the streaming engine configuration. The vulnerability involves poisoning stream targets through custom application properties.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.9.1
Vendor Advisory: https://www.wowza.com/docs/wowza-streaming-engine-4-9-1-release-notes
Restart Required: Yes
Instructions:
1. Download Wowza Streaming Engine 4.9.1 from the official website. 2. Backup current configuration and data. 3. Stop the Wowza service. 4. Install the 4.9.1 update following vendor instructions. 5. Restart the Wowza service. 6. Verify the update was successful.
🔧 Temporary Workarounds
Restrict Administrator Access
allLimit access to the Streaming Engine Manager interface to only essential personnel and implement strong authentication controls.
Monitor Application Property Changes
allImplement logging and monitoring for changes to custom application properties in the Streaming Engine Manager.
🧯 If You Can't Patch
- Implement strict access controls for administrator accounts and monitor for suspicious activity in the Streaming Engine Manager.
- Segment the Wowza server from critical network resources and implement network-based intrusion detection for RCE attempts.
🔍 How to Verify
Check if Vulnerable:
Check the Wowza Streaming Engine version in the administration interface or configuration files. If version is below 4.9.1, the system is vulnerable.Check Version:
Check the version in the Wowza administration web interface at http://[server]:8088/enginemanager or examine the VERSION.txt file in the Wowza installation directory.Verify Fix Applied:
After updating, verify the version shows 4.9.1 or higher in the administration interface or by checking the installation directory.📡 Detection & Monitoring
Log Indicators:
- Unusual modifications to custom application properties
- Administrator account activity outside normal hours
- Error logs related to stream target processing
Network Indicators:
- Unexpected outbound connections from the Wowza server
- Suspicious payloads in streaming protocol traffic
SIEM Query:
source="wowza.logs" AND (event="property_modified" OR event="configuration_change") AND user="admin"