CVE-2024-12806
📋 TL;DR
This post-authentication absolute path traversal vulnerability in SonicOS management interfaces allows authenticated attackers to read arbitrary files on the system. It affects SonicWall firewall appliances running vulnerable SonicOS versions. Attackers must first authenticate to the management interface before exploiting this vulnerability.
💻 Affected Systems
- SonicWall firewalls with SonicOS
⚠️ 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
Authenticated attacker reads sensitive system files including configuration files, credentials, certificates, or other sensitive data stored on the firewall appliance.
Likely Case
Authenticated malicious insider or compromised account reads configuration files to understand network topology, extract credentials, or gather intelligence for further attacks.
If Mitigated
Limited impact due to strong authentication controls, network segmentation, and restricted management interface access.
🎯 Exploit Status
Post-authentication vulnerability requiring valid credentials. Path traversal techniques are well-understood and relatively simple to implement once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check SonicWall advisory SNWLID-2025-0004 for specific patched versions
Vendor Advisory: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0004
Restart Required: Yes
Instructions:
1. Check SonicWall advisory SNWLID-2025-0004 for affected versions. 2. Download and apply the latest SonicOS firmware update from SonicWall support portal. 3. Reboot the firewall appliance after firmware update. 4. Verify the update was successful.
🔧 Temporary Workarounds
Restrict Management Interface Access
allLimit management interface access to trusted IP addresses only
Configure firewall rules to restrict management interface access to specific source IPs
Implement Strong Authentication Controls
allEnforce multi-factor authentication and strong password policies for management access
Enable MFA for SonicOS management interface
Implement complex password requirements
🧯 If You Can't Patch
- Implement strict network segmentation to isolate management interfaces from untrusted networks
- Enable comprehensive logging and monitoring of management interface access and file read attempts
🔍 How to Verify
Check if Vulnerable:
Check SonicOS version against affected versions listed in SonicWall advisory SNWLID-2025-0004Check Version:
Login to SonicOS management interface and check System > Status > Firmware VersionVerify Fix Applied:
Verify SonicOS version is updated to patched version listed in SonicWall advisory📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns via management interface
- Multiple failed authentication attempts followed by successful login and file access
Network Indicators:
- Unusual traffic patterns to management interface from unexpected sources
- File read requests with path traversal patterns
SIEM Query:
source="sonicwall" AND (event_type="file_access" OR uri CONTAINS "../")