CVE-2024-44854
📋 TL;DR
CVE-2024-44854 is a NULL pointer dereference vulnerability in ROS2 navigation2's smoothPlan() function that can cause denial of service or potentially arbitrary code execution. This affects robotic systems using ROS2 navigation2 v.humble. Attackers could crash navigation services or potentially gain control of robotic systems.
💻 Affected Systems
- ROS2 navigation2
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, allowing attackers to take control of robotic systems or underlying infrastructure.
Likely Case
Denial of service causing navigation services to crash, disrupting robotic operations and requiring manual restart.
If Mitigated
Service disruption with automatic recovery if monitoring and restart mechanisms are in place.
🎯 Exploit Status
NULL pointer dereference vulnerabilities are typically easy to trigger once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in navigation2 commit referenced in pull request #4544
Vendor Advisory: https://github.com/ros-navigation/navigation2/issues/4538
Restart Required: Yes
Instructions:
1. Update navigation2 package to latest version. 2. Apply patch from pull request #4544. 3. Rebuild and restart navigation services.
🔧 Temporary Workarounds
Disable smoothPlan functionality
linuxTemporarily disable or bypass the smoothPlan() function if not critical for operations.
# Modify navigation configuration to avoid smoothPlan usage
# Check navigation2 configuration files for smoothPlan references
🧯 If You Can't Patch
- Implement network segmentation to isolate robotic systems from untrusted networks.
- Deploy monitoring and automatic restart mechanisms for navigation services.
🔍 How to Verify
Check if Vulnerable:
Check navigation2 version and commit hash against vulnerable range in GitHub issues.Check Version:
ros2 pkg list | grep navigation2 && apt show ros-humble-navigation2Verify Fix Applied:
Verify navigation2 is updated to version containing fix from pull request #4544.📡 Detection & Monitoring
Log Indicators:
- Segmentation fault errors in ROS2 logs
- Navigation service crashes
- Unexpected process termination
Network Indicators:
- Unusual traffic to navigation services
- Service unavailability alerts
SIEM Query:
process.name:"navigation2" AND (event.action:"segmentation_fault" OR event.outcome:"failure")