CVE-2024-24262
📋 TL;DR
CVE-2024-24262 is a Use-After-Free vulnerability in media-server v1.0.0's SIP transaction timer handling. This allows attackers to potentially execute arbitrary code or cause denial of service by exploiting memory corruption. Organizations using media-server v1.0.0 for SIP-based communication services are affected.
💻 Affected Systems
- media-server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data exfiltration, or persistent backdoor installation.
Likely Case
Denial of service causing media-server crashes and service disruption for SIP-based communication.
If Mitigated
Limited impact with proper memory protection mechanisms and exploit mitigations in place.
🎯 Exploit Status
Use-After-Free vulnerabilities typically require specific timing and memory layout conditions for reliable exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Monitor the media-server repository for security updates. 2. Apply any available patches when released. 3. Restart the media-server service after patching.
🔧 Temporary Workarounds
Disable SIP functionality
linuxIf SIP features are not required, disable them to remove the vulnerable code path.
# Edit media-server configuration to disable SIP
# Restart service: systemctl restart media-server
Network segmentation
linuxRestrict network access to media-server SIP ports (typically 5060-5061 UDP/TCP).
# Example iptables rule: iptables -A INPUT -p tcp --dport 5060:5061 -j DROP
iptables -A INPUT -p udp --dport 5060:5061 -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to trusted sources only.
- Deploy memory protection mechanisms like ASLR and DEP to reduce exploit reliability.
🔍 How to Verify
Check if Vulnerable:
Check if media-server version is exactly 1.0.0 and SIP functionality is enabled in configuration.Check Version:
media-server --version 2>/dev/null || grep -i version /path/to/media-server/binaryVerify Fix Applied:
Verify media-server version is updated beyond v1.0.0 when patches become available.📡 Detection & Monitoring
Log Indicators:
- Media-server crashes or abnormal termination
- SIP transaction timeout errors
- Memory allocation failures in logs
Network Indicators:
- Unusual SIP packet patterns targeting transaction timers
- Multiple SIP INVITE/CANCEL requests in short succession
SIEM Query:
source="media-server" AND (event="crash" OR event="segfault" OR "sip_uac_stop_timer" IN message)