CVE-2023-5747
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on HanwhaVision camera devices during Wave server installation via command injection. Affected systems are HanwhaVision cameras running vulnerable firmware versions. Attackers can gain full control of the camera device.
💻 Affected Systems
- HanwhaVision cameras with Wave server application
📦 What is this software?
Wave Server Software by Hanwhavision
Wave Server Software by Hanwhavision
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of camera device allowing attacker to install persistent malware, pivot to internal networks, disable security features, or use camera as botnet node.
Likely Case
Attacker gains shell access to camera device, can modify configurations, exfiltrate video feeds, or disrupt camera functionality.
If Mitigated
With proper network segmentation and access controls, impact limited to isolated camera network segment.
🎯 Exploit Status
Command injection vulnerabilities typically have low exploitation complexity once the injection point is identified
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patched firmware versions available from HanwhaVision
Vendor Advisory: https://www.hanwhavision.com/wp-content/uploads/2023/11/Camera-Vulnerability-Report-CVE-2023-5747_20231113.pdf
Restart Required: Yes
Instructions:
1. Download latest firmware from HanwhaVision support portal. 2. Upload firmware to camera via web interface. 3. Apply firmware update. 4. Reboot camera to complete installation.
🔧 Temporary Workarounds
Network segmentation
allIsolate camera network from critical systems and internet
Access control restrictions
allRestrict network access to camera management interfaces
🧯 If You Can't Patch
- Segment camera network completely from other systems using firewall rules
- Disable remote management features if not required
🔍 How to Verify
Check if Vulnerable:
Check camera firmware version against HanwhaVision's vulnerability reportCheck Version:
Check via camera web interface: System > Information > Firmware VersionVerify Fix Applied:
Verify firmware version matches patched version from vendor advisory📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Failed authentication attempts to camera management interface
- Unexpected firmware installation attempts
Network Indicators:
- Unusual outbound connections from camera devices
- Traffic to unexpected ports from camera management interface
SIEM Query:
source="camera_logs" AND ("command injection" OR "unauthorized access" OR "firmware install")