CVE-2024-6032

7.8 HIGH

📋 TL;DR

This vulnerability allows local attackers with initial code execution on Tesla Model S vehicles to escalate privileges and execute arbitrary commands as root on the Iris modem. It affects Tesla Model S vehicles with vulnerable modem firmware. Attackers must first compromise the vehicle's system to exploit this flaw.

💻 Affected Systems

Products:
  • Tesla Model S
Versions: Specific firmware versions not publicly disclosed; vehicles with vulnerable Iris modem firmware
Operating Systems: Embedded automotive OS with Qualcomm modem
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the Iris modem subsystem within Tesla Model S vehicles; requires physical or local network access to the vehicle's systems.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full root compromise of the vehicle's Iris modem allowing complete control over modem functions, potential vehicle tracking, communication interception, and lateral movement to other vehicle systems.

🟠

Likely Case

Privilege escalation from a compromised user account to root on the modem, enabling persistence, data exfiltration, and further system manipulation.

🟢

If Mitigated

Limited impact due to proper access controls preventing initial code execution on the vehicle system.

🌐 Internet-Facing: LOW - Requires local access to the vehicle's systems; not directly exploitable over the internet.
🏢 Internal Only: HIGH - Once an attacker gains initial access to the vehicle's systems, exploitation is straightforward and grants root privileges.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW - Once initial code execution is achieved, exploitation is straightforward command injection.

Requires initial code execution on the target system; ZDI advisory suggests the vulnerability is being actively addressed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not publicly specified; Tesla should release firmware updates

Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-25-264/

Restart Required: Yes

Instructions:

1. Check for Tesla vehicle firmware updates via the vehicle's touchscreen or Tesla mobile app. 2. Install any available security updates. 3. Restart the vehicle to apply changes.

🔧 Temporary Workarounds

Restrict physical and network access

all

Prevent unauthorized physical or network access to vehicle systems to block initial compromise required for exploitation.

🧯 If You Can't Patch

  • Isolate vehicle systems from untrusted networks and devices.
  • Implement strict access controls to prevent unauthorized code execution on vehicle systems.

🔍 How to Verify

Check if Vulnerable:

Check vehicle firmware version against Tesla's security bulletins; monitor for unusual modem process activity.

Check Version:

Check firmware version via Tesla vehicle touchscreen: Controls > Software > Additional Vehicle Information

Verify Fix Applied:

Verify firmware has been updated to a version after the patch release date; check that ql_atfwd process properly validates input.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution from ql_atfwd process
  • Suspicious system calls originating from modem subsystem

Network Indicators:

  • Anomalous modem communication patterns
  • Unexpected data exfiltration from vehicle

SIEM Query:

Process execution where parent_process contains 'ql_atfwd' AND command_line contains special characters or shell metacharacters

🔗 References

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