CVE-2023-3638
📋 TL;DR
This vulnerability allows attackers to bypass authentication on GeoVision GV-ADR2701 security cameras by manipulating login responses. Affected organizations using these cameras for surveillance are at risk of unauthorized access to video feeds and camera controls.
💻 Affected Systems
- GeoVision GV-ADR2701
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of surveillance system allowing attackers to view/disable cameras, access network resources, or pivot to other systems.
Likely Case
Unauthorized access to live video feeds, camera configuration changes, and potential privacy violations.
If Mitigated
Limited impact if cameras are isolated on separate network segments with strict access controls.
🎯 Exploit Status
Authentication bypass vulnerabilities are frequently weaponized due to their simplicity and high impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor for latest firmware
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-199-05
Restart Required: Yes
Instructions:
1. Download latest firmware from GeoVision support portal. 2. Backup current configuration. 3. Upload firmware via web interface. 4. Reboot camera. 5. Verify firmware version.
🔧 Temporary Workarounds
Network Segmentation
allIsolate cameras on separate VLAN with strict firewall rules
Access Control Lists
allRestrict camera web interface access to authorized IP addresses only
🧯 If You Can't Patch
- Place cameras behind VPN with multi-factor authentication for remote access
- Disable remote web interface access and use only local network monitoring
🔍 How to Verify
Check if Vulnerable:
Attempt to manipulate login response using proxy tools like Burp Suite or test with known exploit scripts if available.Check Version:
Check firmware version in camera web interface under System > InformationVerify Fix Applied:
Verify firmware version matches patched release and test authentication bypass attempts fail.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by successful access
- Login from unusual IP addresses
- Configuration changes without authorized user activity
Network Indicators:
- HTTP traffic to camera web interface with manipulated authentication headers
- Unusual outbound connections from camera
SIEM Query:
source="camera_logs" AND (event="login_success" AND user="unknown" OR event="config_change" AND user="unknown")