CVE-2022-24575
📋 TL;DR
CVE-2022-24575 is a stack-based buffer overflow vulnerability in GPAC's MP4Box tool that allows attackers to execute arbitrary code or cause denial of service. This affects users who process untrusted MP4 files with GPAC version 1.0.1. The vulnerability can be triggered through specially crafted media files.
💻 Affected Systems
- GPAC
- MP4Box
📦 What is this software?
Gpac by Gpac
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the privileges of the user running MP4Box, potentially leading to full system compromise.
Likely Case
Application crash (denial of service) when processing malicious files, with potential for code execution in some scenarios.
If Mitigated
Limited to denial of service if proper sandboxing or privilege separation is implemented.
🎯 Exploit Status
Proof of concept available in GitHub issues. Exploitation requires user to process a malicious MP4 file, which can be delivered via email, web downloads, or other file sharing methods.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: GPAC 1.1.0 and later
Vendor Advisory: https://github.com/gpac/gpac/issues/2058
Restart Required: No
Instructions:
1. Upgrade GPAC to version 1.1.0 or later. 2. Download from official GPAC repository. 3. Recompile or use updated binaries. 4. Replace existing MP4Box installation.
🔧 Temporary Workarounds
Disable MP4Box processing of untrusted files
allRestrict MP4Box usage to trusted files only and implement input validation
Run MP4Box with reduced privileges
allExecute MP4Box in a sandboxed environment or with minimal user privileges
sudo -u nobody mp4box [options] (Linux)
runas /user:lowprivilegeuser mp4box.exe (Windows)
🧯 If You Can't Patch
- Implement strict file upload validation for any service using MP4Box
- Run MP4Box in containerized or virtualized environments with no network access
🔍 How to Verify
Check if Vulnerable:
Check GPAC version: mp4box -version | grep 'GPAC'Check Version:
mp4box -versionVerify Fix Applied:
Verify version is 1.1.0 or later: mp4box -version📡 Detection & Monitoring
Log Indicators:
- MP4Box segmentation faults
- Abnormal process termination of mp4box
- Large memory allocation failures
Network Indicators:
- Unusual file uploads to services using MP4Box
- MP4 files with abnormal structure or size
SIEM Query:
process_name='mp4box' AND (event_id='1000' OR exit_code='0xC0000005')