CVE-2025-6561
📋 TL;DR
Hunt Electronic HBF-09KD and HBF-16NK hybrid DVR models expose a system configuration file containing plaintext administrator credentials to unauthenticated remote attackers. This allows complete compromise of affected devices. Organizations using these specific DVR models are at immediate risk.
💻 Affected Systems
- Hunt Electronic HBF-09KD
- Hunt Electronic HBF-16NK
⚠️ 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 gain full administrative control of DVR systems, potentially accessing live surveillance feeds, tampering with recordings, using devices as network pivots, or deploying ransomware on connected systems.
Likely Case
Attackers steal administrator credentials and gain persistent access to surveillance systems, potentially viewing sensitive footage or disabling security monitoring.
If Mitigated
With proper network segmentation and access controls, impact is limited to the DVR device itself without lateral movement to other systems.
🎯 Exploit Status
Simple HTTP request to exposed configuration file path. No authentication required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check with Hunt Electronic for specific firmware versions
Vendor Advisory: https://www.twcert.org.tw/en/cp-139-10200-6b567-2.html
Restart Required: Yes
Instructions:
1. Contact Hunt Electronic for latest firmware. 2. Backup current configuration. 3. Upload new firmware via web interface. 4. Reboot device. 5. Restore configuration if needed.
🔧 Temporary Workarounds
Network Segmentation
allIsolate DVR devices on separate VLAN with strict firewall rules
Access Control Lists
allRestrict HTTP/HTTPS access to DVR management interface to authorized IPs only
🧯 If You Can't Patch
- Immediately disconnect affected devices from internet
- Change all administrator passwords and monitor for unauthorized access
🔍 How to Verify
Check if Vulnerable:
Attempt HTTP GET request to DVR configuration file path (specific path not disclosed in public advisory)Check Version:
Check via DVR web interface under System Information or via vendor-specific CLI commandsVerify Fix Applied:
Verify firmware version matches patched version from vendor and test that configuration file is no longer accessible without authentication📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to configuration file paths
- Multiple failed login attempts followed by successful login from new IP
Network Indicators:
- HTTP requests to DVR devices from unexpected external IPs
- Traffic patterns suggesting credential harvesting
SIEM Query:
source_ip=external AND dest_ip=DVR_IP AND (http_uri CONTAINS "config" OR http_uri CONTAINS "password")