CVE-2025-32057

6.5 MEDIUM

📋 TL;DR

This vulnerability allows attackers to impersonate legitimate update servers for Nissan Leaf infotainment systems due to improper SSL certificate validation. Attackers could potentially deliver malicious firmware updates to affected vehicles. This affects Nissan Leaf ZE1 models manufactured in 2020 with Bosch infotainment systems.

💻 Affected Systems

Products:
  • Nissan Leaf ZE1 Infotainment System
Versions: 2020 manufacturing year
Operating Systems: Embedded automotive OS
Default Config Vulnerable: ⚠️ Yes
Notes: Specifically affects Bosch-manufactured infotainment ECUs using Redbend OTA update service with default SSL configuration.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete vehicle compromise through malicious firmware updates, potentially allowing remote control of vehicle systems or disabling safety features.

🟠

Likely Case

Unauthorized firmware modifications, data theft from infotainment system, or installation of malware that could affect vehicle functionality.

🟢

If Mitigated

Limited impact if certificate validation is properly implemented and network segmentation prevents attacker access.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires man-in-the-middle position and ability to intercept OTA update communications.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

Contact Nissan dealership for potential ECU firmware updates or recalls. No direct user-patchable solution available.

🔧 Temporary Workarounds

Disable OTA Updates

all

Prevent the vehicle from accepting over-the-air updates to eliminate attack vector

Not applicable - requires dealership service

🧯 If You Can't Patch

  • Avoid connecting vehicle to untrusted Wi-Fi networks
  • Use physical dealership updates instead of OTA when possible

🔍 How to Verify

Check if Vulnerable:

Check vehicle VIN and manufacturing date (2020 Nissan Leaf ZE1). Requires specialized diagnostic tools to verify SSL certificate validation behavior.

Check Version:

Not applicable - requires dealership diagnostic equipment

Verify Fix Applied:

Contact Nissan dealership for ECU firmware version verification and recall status.

📡 Detection & Monitoring

Log Indicators:

  • Unusual OTA update attempts
  • SSL certificate validation failures
  • Unexpected firmware update activity

Network Indicators:

  • Unusual traffic to/from Redbend update servers
  • Self-signed certificates in OTA communications

SIEM Query:

Not applicable for consumer vehicles

🔗 References

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