CVE-2025-8472

7.4 HIGH

📋 TL;DR

A stack-based buffer overflow vulnerability in Alpine iLX-507 devices allows network-adjacent attackers to execute arbitrary code as root when parsing malicious vCard data. Exploitation requires the target device to connect to a malicious Bluetooth device. This affects Alpine iLX-507 infotainment systems.

💻 Affected Systems

Products:
  • Alpine iLX-507
Versions: All versions prior to patch
Operating Systems: Embedded Linux-based automotive OS
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default vCard parsing functionality when Bluetooth is enabled.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full root-level compromise of the infotainment system, allowing attacker to control vehicle entertainment functions, potentially access connected devices, and pivot to other vehicle systems.

🟠

Likely Case

Remote code execution on the infotainment system, enabling data theft, audio/video manipulation, or installation of persistent malware.

🟢

If Mitigated

Limited impact if Bluetooth pairing is restricted to trusted devices only and network segmentation is implemented.

🌐 Internet-Facing: LOW - Exploitation requires physical proximity via Bluetooth, not internet connectivity.
🏢 Internal Only: MEDIUM - Requires attacker to be within Bluetooth range (typically ~10 meters) and user to connect to malicious device.

🎯 Exploit Status

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

Exploitation requires social engineering to trick user into connecting to malicious Bluetooth device, but technical exploit is straightforward once connection is established.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Alpine Electronics security advisory for specific firmware version

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

Restart Required: Yes

Instructions:

1. Check Alpine website for security advisory. 2. Download latest firmware update. 3. Install via USB following manufacturer instructions. 4. Restart device.

🔧 Temporary Workarounds

Disable Bluetooth vCard sharing

all

Disable vCard/contact sharing functionality in Bluetooth settings

Restrict Bluetooth connections

all

Only pair with trusted devices and disable auto-connect features

🧯 If You Can't Patch

  • Disable Bluetooth completely when not in use
  • Implement physical security controls to prevent unauthorized Bluetooth devices in vehicle proximity

🔍 How to Verify

Check if Vulnerable:

Check firmware version in device settings against Alpine security advisory

Check Version:

Navigate to Settings > System Information > Firmware Version on iLX-507 device

Verify Fix Applied:

Verify firmware version matches or exceeds patched version in security advisory

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed Bluetooth connection attempts
  • Unusual vCard parsing errors
  • System crash/restart events

Network Indicators:

  • Unusual Bluetooth MAC addresses attempting pairing
  • Excessive vCard data transfers over Bluetooth

SIEM Query:

Device:Alpine_iLX-507 AND (Event:Bluetooth_Pairing_Failed OR Event:System_Crash)

🔗 References

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