CVE-2024-7142
📋 TL;DR
This vulnerability affects Arista CloudVision Appliance (CVA) DCA-350E-CV models where hardware disk encryption fails to activate properly, leaving data on physical disks unencrypted. Only organizations using these specific appliances with hardware encryption support are affected. This creates a data-at-rest security risk if physical access to the appliance is obtained.
💻 Affected Systems
- Arista CloudVision Appliance (CVA)
⚠️ 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
An attacker with physical access to the appliance could extract unencrypted sensitive network configuration data, credentials, and management information from the disks, potentially compromising the entire network infrastructure.
Likely Case
If the appliance is decommissioned, stolen, or physically accessed by unauthorized personnel, sensitive configuration data and credentials could be recovered from unencrypted storage.
If Mitigated
With proper physical security controls preventing unauthorized access to data center equipment, the risk is significantly reduced as the vulnerability requires physical disk access.
🎯 Exploit Status
Exploitation requires physical access to remove disks from the appliance, then standard forensic/data recovery tools could access unencrypted data. No authentication or special tools required once physical access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in advisory - contact Arista support for patched releases
Vendor Advisory: https://www.arista.com/en/support/advisories-notices/security-advisory/20405-security-advisory-0104
Restart Required: Yes
Instructions:
1. Contact Arista support for patched software releases. 2. Schedule maintenance window. 3. Backup configuration. 4. Apply update following Arista's upgrade procedures. 5. Verify encryption status post-update.
🔧 Temporary Workarounds
Physical Security Enhancement
allStrengthen physical security controls around affected appliances to prevent unauthorized physical access
Disk Encryption Verification
linuxManually verify disk encryption status on affected appliances and monitor for encryption failures
Check system logs for encryption status messages
Verify with Arista support tools if available
🧯 If You Can't Patch
- Implement strict physical security controls with access logging and surveillance for data centers housing affected appliances
- Consider migrating sensitive data to alternative secure storage and treating affected appliances as potentially compromised if physical security cannot be guaranteed
🔍 How to Verify
Check if Vulnerable:
Check if you have DCA-350E-CV appliances and review system logs for disk encryption status messages or errors. Contact Arista support for specific vulnerability checking tools.Check Version:
Arista-specific commands vary by version - typically 'show version' or similar CLI commands on the CVA applianceVerify Fix Applied:
After applying patches, verify disk encryption is active through system status commands and confirm no encryption-related errors in logs. Arista support can provide verification procedures.📡 Detection & Monitoring
Log Indicators:
- Disk encryption failure messages in system logs
- Hardware encryption module errors
- Storage subsystem warnings
Network Indicators:
- None - this is a local physical access vulnerability
SIEM Query:
Search for: 'encryption failed', 'disk encryption error', 'hardware encryption failure' in system logs of DCA-350E-CV appliances