CVE-2024-53705
📋 TL;DR
A Server-Side Request Forgery vulnerability in SonicOS SSH management interface allows authenticated attackers to make the firewall initiate TCP connections to arbitrary IP addresses and ports. This affects SonicWall firewalls with SSH management enabled. Attackers must have valid login credentials to 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
Attackers could pivot through the firewall to reach internal systems, scan internal networks, or interact with internal services that shouldn't be accessible from the management interface.
Likely Case
Internal network reconnaissance, port scanning of internal systems, or limited interaction with internal services that accept connections from the firewall's IP address.
If Mitigated
Limited impact if firewall management is restricted to trusted networks and strong authentication is enforced.
🎯 Exploit Status
Exploitation requires authenticated SSH access to the firewall management interface. The vulnerability allows making TCP connections but doesn't inherently provide data exfiltration or command execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific fixed versions
Vendor Advisory: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0003
Restart Required: No
Instructions:
1. Access SonicWall firewall management interface. 2. Check current SonicOS version. 3. Download and apply the latest SonicOS firmware update from SonicWall support portal. 4. Verify the update was successful.
🔧 Temporary Workarounds
Disable SSH Management
SonicOSDisable SSH access to the firewall management interface if not required
Navigate to System > Administration > Management > SSH Management and disable SSH access
Restrict SSH Access
SonicOSLimit SSH management access to specific trusted IP addresses only
Navigate to System > Administration > Management > SSH Management and configure allowed IP addresses
🧯 If You Can't Patch
- Implement strict network segmentation to isolate firewall management interfaces
- Enforce multi-factor authentication for all firewall administrative accounts
🔍 How to Verify
Check if Vulnerable:
Check if SSH management is enabled and accessible. Review SonicOS version against vendor advisory.Check Version:
ssh admin@firewall_ip 'show version' or check via web interface at System > StatusVerify Fix Applied:
Verify SonicOS version is updated to patched version. Test SSH management functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual SSH login patterns
- Firewall initiating unexpected outbound TCP connections
- Multiple connection attempts to internal IPs from firewall IP
Network Indicators:
- Firewall making TCP connections to unexpected internal IP addresses and ports
- Port scanning activity originating from firewall IP
SIEM Query:
source_ip=firewall_ip AND dest_port=* AND NOT dest_ip IN (allowed_management_ips) AND protocol=TCP