CVE-2024-37863

9.8 CRITICAL

📋 TL;DR

A buffer overflow vulnerability in ROS2 Nav2's AMCL process allows remote code execution when processing malicious YAML files. This affects ROS2 Humble distributions using Nav2 navigation stack. Attackers can potentially gain full control of robotic systems.

💻 Affected Systems

Products:
  • ROS2 Navigation2 (Nav2)
  • ROS2 AMCL (Adaptive Monte Carlo Localization)
Versions: ROS2 Humble distributions with vulnerable Nav2 versions
Operating Systems: Linux (Ubuntu 22.04 typical for ROS2 Humble)
Default Config Vulnerable: ⚠️ Yes
Notes: Systems using AMCL for robot localization with YAML configuration files are vulnerable. The vulnerability is in the YAML parsing component.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise leading to remote code execution, allowing attackers to take control of robotic platforms, manipulate sensor data, or disable safety systems.

🟠

Likely Case

Service disruption through process crashes, potentially causing navigation failures in autonomous systems.

🟢

If Mitigated

Limited impact if systems are isolated, use minimal privileges, and validate all configuration inputs.

🌐 Internet-Facing: MEDIUM - Requires AMCL service exposure and ability to upload YAML files, but robotic systems often have limited internet connectivity.
🏢 Internal Only: HIGH - Internal attackers or compromised systems can exploit this to escalate privileges or disrupt operations.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires sending a crafted YAML file to the AMCL process. The vulnerability is in the parsing logic, making exploitation straightforward once the file format is understood.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check ROS Navigation2 repository for specific patched versions

Vendor Advisory: https://github.com/ros-navigation/navigation2/security/advisories

Restart Required: Yes

Instructions:

1. Update ROS2 Navigation2 package via package manager. 2. Update AMCL component specifically. 3. Restart all Nav2-related services. 4. Validate YAML configuration files are from trusted sources.

🔧 Temporary Workarounds

Disable AMCL or restrict YAML input

linux

Temporarily disable AMCL localization or implement strict validation on YAML file inputs

sudo systemctl stop nav2_amcl
Implement input validation in configuration loading

Network isolation

linux

Restrict network access to AMCL service ports

sudo ufw deny from any to any port [AMCL_PORT]
Implement network segmentation

🧯 If You Can't Patch

  • Implement strict file validation for all YAML configuration files before processing
  • Run AMCL process with minimal privileges and in isolated containers/namespaces

🔍 How to Verify

Check if Vulnerable:

Check ROS2 and Nav2 versions: ros2 pkg list | grep navigation2 && dpkg -l | grep ros-humble-nav2

Check Version:

ros2 pkg version navigation2_amcl

Verify Fix Applied:

Verify updated package versions and test with known safe YAML files

📡 Detection & Monitoring

Log Indicators:

  • AMCL process crashes
  • Unusual YAML file parsing errors
  • Memory access violation logs

Network Indicators:

  • Unexpected connections to AMCL service ports
  • Large YAML file transfers to robotic systems

SIEM Query:

process_name:"nav2_amcl" AND (event_type:crash OR error_message:"buffer overflow" OR error_message:"segmentation fault")

🔗 References

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