CVE-2024-23934
📋 TL;DR
A stack-based buffer overflow vulnerability in Sony XAV-AX5500 devices allows remote attackers to execute arbitrary code by tricking users into opening malicious WMV/ASF media files. This affects all users of Sony XAV-AX5500 in-car entertainment systems with vulnerable firmware. Successful exploitation gives attackers control over the device.
💻 Affected Systems
- Sony XAV-AX5500
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to execute arbitrary code, potentially gaining persistent access, stealing data, or using the device as an attack vector within connected vehicle networks.
Likely Case
Device malfunction, unauthorized access to media/connectivity features, potential data exfiltration from connected devices, and disruption of in-car entertainment functions.
If Mitigated
Limited impact with proper network segmentation, user awareness training, and file source restrictions preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). The vulnerability is well-documented with technical details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware version 02.74.156
Vendor Advisory: https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-ax5500/software/00274156
Restart Required: Yes
Instructions:
1. Download firmware update from Sony support site. 2. Copy to USB drive. 3. Insert USB into XAV-AX5500. 4. Follow on-screen update instructions. 5. Restart device after completion.
🔧 Temporary Workarounds
Restrict media sources
allOnly allow media playback from trusted sources and disable automatic media file parsing from unknown sources.
Network segmentation
allIsolate vehicle entertainment systems from critical vehicle networks and external internet access.
🧯 If You Can't Patch
- Disable all media file playback from external sources (USB, Bluetooth, etc.)
- Implement strict network segmentation to prevent lateral movement if compromised
🔍 How to Verify
Check if Vulnerable:
Check firmware version in device settings. If version is below 02.74.156, device is vulnerable.Check Version:
Navigate to Settings > System Information on XAV-AX5500 displayVerify Fix Applied:
Confirm firmware version shows 02.74.156 or higher in device settings after update.📡 Detection & Monitoring
Log Indicators:
- Unusual media file parsing errors
- Multiple failed media playback attempts
- Unexpected device restarts
Network Indicators:
- Unusual outbound connections from vehicle entertainment system
- Suspicious file transfers to the device
SIEM Query:
Not applicable for typical automotive systems without centralized logging