CVE-2024-13943
📋 TL;DR
This vulnerability in Tesla Model S vehicles allows local attackers with low-privileged code execution to escape the sandbox via improper input validation in the QCMAP_ConnectionManager component. Attackers can abuse this to assign LAN addresses to the WWAN, potentially accessing internal network services intended only for the LAN. Affected are Tesla Model S vehicles with the vulnerable Iris Modem component.
💻 Affected Systems
- Tesla Model S
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker gains full control over vehicle network interfaces, potentially accessing sensitive internal systems, manipulating vehicle functions, or establishing persistence for further attacks.
Likely Case
Local privilege escalation allowing access to restricted network services and potential lateral movement within the vehicle's internal network.
If Mitigated
Limited impact due to proper network segmentation and access controls preventing exploitation even with initial access.
🎯 Exploit Status
Requires local access and low-privileged code execution as prerequisite. The vulnerability itself involves sandbox escape through improper input validation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not publicly specified - check Tesla vehicle software updates
Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-25-262/
Restart Required: Yes
Instructions:
1. Ensure Tesla Model S is connected to WiFi or cellular network. 2. Check for available software updates in vehicle settings. 3. Install any available updates. 4. Restart vehicle systems as prompted.
🔧 Temporary Workarounds
Network Segmentation
allImplement strict network segmentation between vehicle LAN and WWAN interfaces
Access Control Restrictions
allRestrict local code execution capabilities and implement application sandboxing
🧯 If You Can't Patch
- Implement strict network monitoring for unusual LAN-WWAN traffic patterns
- Restrict physical and network access to vehicle systems to prevent initial low-privileged code execution
🔍 How to Verify
Check if Vulnerable:
Check vehicle software version and compare with latest Tesla releases. Monitor for unusual network configuration changes between LAN and WWAN interfaces.Check Version:
Check vehicle software version in Tesla touchscreen under Settings > SoftwareVerify Fix Applied:
Verify vehicle software has been updated to latest version and test that QCMAP_ConnectionManager properly validates input.📡 Detection & Monitoring
Log Indicators:
- Unusual QCMAP_ConnectionManager service activity
- Unexpected LAN-WWAN interface configuration changes
- Sandbox escape attempts in system logs
Network Indicators:
- Unauthorized traffic between LAN and WWAN interfaces
- Unexpected network address assignments
SIEM Query:
Search for QCMAP_ConnectionManager service anomalies OR unexpected interface configuration changes in vehicle network logs