CVE-2024-41649
📋 TL;DR
This CVE describes an insecure permissions vulnerability in ROS2 navigation2 that allows attackers to execute arbitrary code via a crafted script targeting the executor_thread_. Systems running ROS2 navigation2 v.humble with default configurations are vulnerable to remote code execution.
💻 Affected Systems
- Open Robotics Robotic Operating System 2 (ROS2)
- navigation2 package
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining root privileges, installing persistent backdoors, and pivoting to other network systems.
Likely Case
Remote code execution leading to service disruption, data theft, or deployment of cryptocurrency miners/ransomware.
If Mitigated
Limited impact with proper network segmentation and least privilege controls, potentially only affecting the ROS2 service.
🎯 Exploit Status
The vulnerability involves insecure permissions allowing script injection. Public GitHub references suggest exploit details are available, making weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check navigation2 releases after pull request #4385
Vendor Advisory: https://github.com/open-navigation/navigation2/issues/4323
Restart Required: Yes
Instructions:
1. Update navigation2 package to patched version. 2. Apply security patches from pull request #4385. 3. Restart ROS2 services and verify functionality.
🔧 Temporary Workarounds
Restrict network access
linuxLimit network exposure of ROS2 services to trusted networks only
sudo ufw deny from any to any port 11311
sudo iptables -A INPUT -p tcp --dport 11311 -j DROP
Implement strict file permissions
linuxSet restrictive permissions on ROS2 directories and executables
sudo chmod 750 /opt/ros/humble/
sudo chown root:ros-users /opt/ros/humble/ -R
🧯 If You Can't Patch
- Implement network segmentation to isolate ROS2 systems from critical infrastructure
- Deploy application control/whitelisting to prevent execution of unauthorized scripts
🔍 How to Verify
Check if Vulnerable:
Check navigation2 version and review permissions on executor_thread_ related files: ls -la /path/to/ros2/navigation2/Check Version:
ros2 pkg list | grep navigation2 && apt-cache policy ros-humble-navigation2Verify Fix Applied:
Verify navigation2 version is updated and test with security scanning tools. Check that pull request #4385 changes are applied.📡 Detection & Monitoring
Log Indicators:
- Unauthorized script execution in ROS2 logs
- Unexpected process spawning from ROS2 services
- Permission denied errors followed by successful executions
Network Indicators:
- Unusual network connections from ROS2 systems
- Traffic to/from ROS2 default port 11311 from untrusted sources
SIEM Query:
process_name:"ros2" AND (command_line:"executor_thread_" OR command_line:"script")