CVE-2024-44852
📋 TL;DR
CVE-2024-44852 is a critical memory corruption vulnerability in ROS2 navigation2's theta_star planner that allows attackers to cause segmentation faults and potentially execute arbitrary code. This affects all systems running ROS2 Humble with navigation2's theta_star planner enabled. The vulnerability can lead to denial of service or remote code execution in robotic systems.
💻 Affected Systems
- ROS2 navigation2
- Open Robotics Robotic Operating System 2
📦 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, manipulate navigation, or cause physical damage.
Likely Case
Denial of service causing robotic systems to crash or become unresponsive, disrupting operations and requiring manual intervention.
If Mitigated
Segmentation fault contained within the navigation process without system-wide impact if proper process isolation exists.
🎯 Exploit Status
Exploitation requires triggering the vulnerable isUnsafeToPlan() function with specific inputs. No public exploit code is available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in navigation2 pull request #4463
Vendor Advisory: https://github.com/open-navigation/navigation2/issues/4464
Restart Required: Yes
Instructions:
1. Update navigation2 package: 'sudo apt update && sudo apt upgrade ros-humble-navigation2' 2. Restart all ROS2 nodes using navigation2 3. Verify theta_star planner functionality
🔧 Temporary Workarounds
Disable theta_star planner
linuxSwitch to alternative planners like NavFn or SmacPlanner that are not affected by this vulnerability
ros2 param set /local_planner planner_plugin "nav2_navfn_planner/NavfnPlanner"
🧯 If You Can't Patch
- Implement network segmentation to isolate robotic systems from untrusted networks
- Deploy runtime application self-protection (RASP) or memory protection mechanisms
🔍 How to Verify
Check if Vulnerable:
Check if using theta_star planner: 'ros2 param get /local_planner planner_plugin' returns 'theta_star_planner/ThetaStarPlanner'Check Version:
ros2 pkg list | grep navigation2 && dpkg -l | grep ros-humble-navigation2Verify Fix Applied:
Verify navigation2 version: 'apt list --installed | grep ros-humble-navigation2' shows updated version📡 Detection & Monitoring
Log Indicators:
- Segmentation fault errors in ROS2 logs
- ThetaStar planner crashes
- Navigation stack restarting frequently
Network Indicators:
- Unusual traffic to/from robotic controllers
- Multiple connection attempts to ROS2 nodes
SIEM Query:
process.name:"ros2" AND (event.action:"segmentation_fault" OR log.message:"theta_star")