CVE-2024-31004
📋 TL;DR
CVE-2024-31004 is a critical remote code execution vulnerability in Bento4's MP4 fragment parsing functionality. An attacker can exploit this by sending a specially crafted MP4 file to execute arbitrary code on the target system. This affects any application or service using Bento4 v1.6.0-641 for MP4 processing.
💻 Affected Systems
- Bento4
📦 What is this software?
Bento4 by Axiosys
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control over the vulnerable system, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Remote code execution allowing attackers to install malware, create backdoors, or use the system as part of a botnet.
If Mitigated
Limited impact with proper network segmentation, application sandboxing, and least privilege principles in place.
🎯 Exploit Status
Exploitation requires the attacker to provide a malicious MP4 file to the vulnerable application. The vulnerability is in the AP4_StsdAtom constructor in Ap4StsdAtom.cpp.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub repository for latest patched version
Vendor Advisory: https://github.com/axiomatic-systems/Bento4/issues/941
Restart Required: Yes
Instructions:
1. Check current Bento4 version
2. Update to latest version from official GitHub repository
3. Rebuild any applications using Bento4 library
4. Restart affected services
🔧 Temporary Workarounds
Input Validation
allImplement strict validation of MP4 files before processing with Bento4
Sandbox Execution
allRun Bento4 processes in isolated containers or sandboxes with minimal privileges
🧯 If You Can't Patch
- Implement network segmentation to isolate systems using Bento4
- Deploy application allowlisting to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check if Bento4 version is 1.6.0-641 by examining installed packages or checking application dependenciesCheck Version:
bento4 --version or check package manager (apt, yum, brew)Verify Fix Applied:
Verify Bento4 has been updated to a version after the fix by checking version numbers and monitoring for crash reports📡 Detection & Monitoring
Log Indicators:
- Application crashes with segmentation faults
- Unusual process creation from Bento4-related processes
- Memory corruption errors in application logs
Network Indicators:
- Unusual outbound connections from systems running Bento4
- Large MP4 file uploads to services using Bento4
SIEM Query:
Process creation where parent process contains 'bento4' or 'mp4' AND command line contains unusual arguments