CVE-2025-8474

6.8 MEDIUM

📋 TL;DR

A stack-based buffer overflow vulnerability in Alpine iLX-507 CarPlay implementation allows physically present attackers to execute arbitrary code as root without authentication. This affects Alpine iLX-507 in-vehicle infotainment systems. Attackers can exploit this by connecting to the CarPlay interface and sending specially crafted data.

💻 Affected Systems

Products:
  • Alpine iLX-507
Versions: All versions prior to patch
Operating Systems: Embedded Linux-based automotive OS
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerable when CarPlay is enabled. Requires physical access to USB port or wireless CarPlay connection.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of the infotainment system with root privileges, potentially enabling vehicle system manipulation, data theft, or persistent backdoor installation.

🟠

Likely Case

Local code execution allowing access to vehicle data, GPS tracking, microphone/camera access, and potential lateral movement to connected vehicle networks.

🟢

If Mitigated

Limited impact if physical access controls prevent unauthorized device connections and CarPlay is disabled when not needed.

🌐 Internet-Facing: LOW - Requires physical or local wireless connection to exploit.
🏢 Internal Only: HIGH - Physical presence required, but vehicles are often in public/accessible locations.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Requires physical access to vehicle and knowledge of CarPlay protocol exploitation. No authentication needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Alpine firmware updates

Vendor Advisory: https://www.alpine.com/support/security-advisories

Restart Required: Yes

Instructions:

1. Visit Alpine support website 2. Download latest firmware for iLX-507 3. Install via USB following manufacturer instructions 4. Reboot system after installation

🔧 Temporary Workarounds

Disable CarPlay

all

Temporarily disable Apple CarPlay functionality to prevent exploitation

Navigate to Settings > Apple CarPlay > Turn Off

Physical Access Control

all

Prevent unauthorized physical access to USB ports and wireless connections

🧯 If You Can't Patch

  • Disable CarPlay functionality completely
  • Implement physical security controls to prevent unauthorized device connections

🔍 How to Verify

Check if Vulnerable:

Check firmware version in Settings > System Information. If version predates security patch, system is vulnerable.

Check Version:

Navigate to Settings > System Information > Firmware Version

Verify Fix Applied:

Verify firmware version matches latest security update from Alpine. Test CarPlay functionality after patch.

📡 Detection & Monitoring

Log Indicators:

  • Unusual CarPlay connection attempts
  • System crash logs related to CarPlay service
  • Memory access violation errors

Network Indicators:

  • Unexpected CarPlay protocol traffic patterns
  • Unusual USB device enumeration

SIEM Query:

Not applicable - embedded automotive system without standard SIEM integration

🔗 References

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