CVE-2024-12805
📋 TL;DR
A post-authentication format string vulnerability in SonicOS management interface allows authenticated attackers to crash firewalls and potentially execute arbitrary code. This affects SonicWall firewalls running vulnerable SonicOS versions. Only authenticated users can exploit this vulnerability.
💻 Affected Systems
- SonicWall firewalls running 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
Remote code execution leading to complete firewall compromise, network traffic interception, and lateral movement into internal networks.
Likely Case
Firewall crash causing denial of service, requiring manual reboot and disrupting network connectivity.
If Mitigated
Limited to authenticated users only, reducing attack surface to authorized personnel or compromised credentials.
🎯 Exploit Status
Requires authentication and format string exploitation knowledge. No public exploits known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to SNWLID-2025-0004 for specific patched versions
Vendor Advisory: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0004
Restart Required: No
Instructions:
1. Review SNWLID-2025-0004 advisory for affected versions. 2. Download appropriate firmware update from SonicWall support portal. 3. Apply firmware update following SonicWall documentation. 4. Verify successful update and functionality.
🔧 Temporary Workarounds
Restrict Management Access
allLimit management interface access to trusted IP addresses only
Configure firewall rules to restrict management interface access to specific source IPs
Disable Unnecessary Management Services
allTurn off management services not required for operations
Disable HTTP/HTTPS management if using CLI only
Disable remote management if not needed
🧯 If You Can't Patch
- Implement strict access controls to limit management interface exposure
- Monitor authentication logs for suspicious activity and credential compromise
🔍 How to Verify
Check if Vulnerable:
Check SonicOS version against affected versions in SNWLID-2025-0004 advisoryCheck Version:
show version (CLI) or check System > Status in web interfaceVerify Fix Applied:
Verify SonicOS version matches patched version from advisory and test management interface functionality📡 Detection & Monitoring
Log Indicators:
- Multiple authentication failures followed by management interface crashes
- Unusual format string patterns in management requests
- Firewall reboot events without scheduled maintenance
Network Indicators:
- Management interface becoming unresponsive
- Unusual traffic patterns to management ports from authenticated sources
SIEM Query:
source="sonicwall" AND (event_type="crash" OR event_type="reboot") AND interface="management"