CVE-2024-41647
📋 TL;DR
CVE-2024-41647 is an insecure permissions vulnerability in ROS2 navigation2's nav2_mppi_controller component that allows attackers to execute arbitrary code via a crafted script. This affects ROS2 Humble distributions using navigation2. Attackers can gain unauthorized access and control over robotic systems.
💻 Affected Systems
- Open Robotics Robotic Operating System 2 (ROS2)
- ROS2 navigation2
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of robotic system allowing arbitrary code execution, potential physical damage, data theft, and lateral movement to connected systems.
Likely Case
Unauthorized code execution leading to disruption of robotic operations, data exfiltration, and potential safety hazards in automated systems.
If Mitigated
Limited impact with proper access controls and network segmentation, potentially only affecting isolated navigation components.
🎯 Exploit Status
Exploitation requires access to the ROS2 system but does not require authentication. Public references show proof-of-concept details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in navigation2 pull request #4463
Vendor Advisory: https://github.com/ros-navigation/navigation2/issues/4436
Restart Required: Yes
Instructions:
1. Update navigation2 package to latest version. 2. Apply patch from PR #4463. 3. Restart ROS2 nodes and navigation services. 4. Verify permissions are properly restricted.
🔧 Temporary Workarounds
Restrict ROS2 Node Permissions
linuxImplement strict file permissions and access controls for ROS2 nodes and scripts.
chmod 750 /path/to/ros2/nodes
chown root:rosgroup /path/to/ros2/nodes
Network Segmentation
linuxIsolate ROS2 systems from untrusted networks and implement firewall rules.
sudo ufw deny from any to any port 11311
sudo iptables -A INPUT -p tcp --dport 11311 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate ROS2 systems from other networks
- Deploy application allowlisting to prevent execution of unauthorized scripts
🔍 How to Verify
Check if Vulnerable:
Check navigation2 version and verify if nav2_mppi_controller has insecure permissions. Review system logs for unauthorized script execution attempts.Check Version:
ros2 pkg list | grep navigation2 && dpkg -l | grep ros-humble-navigation2Verify Fix Applied:
Verify navigation2 is updated to version containing PR #4463 fix. Test that crafted scripts cannot execute via nav2_mppi_controller.📡 Detection & Monitoring
Log Indicators:
- Unauthorized script execution in ROS2 logs
- Permission denied errors for nav2_mppi_controller
- Unexpected process spawning from navigation nodes
Network Indicators:
- Unusual ROS2 topic subscriptions/publications
- Unexpected connections to ROS2 master (port 11311)
- Anomalous network traffic from robotic systems
SIEM Query:
source="ros2_logs" AND ("nav2_mppi_controller" OR "permission denied") AND "script execution"