CVE-2019-8387
📋 TL;DR
CVE-2019-8387 allows remote attackers to execute arbitrary commands on MASTER IPCAMERA01 devices via the thttpd component. This affects MASTER IPCAMERA01 version 3.3.4.2103, enabling complete device compromise. Anyone using these vulnerable IP cameras is at risk.
💻 Affected Systems
- MASTER IPCAMERA01
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full device takeover, camera feed interception, lateral movement to internal networks, persistent backdoor installation, and use in botnets.
Likely Case
Camera feed hijacking, device bricking, credential theft, and surveillance system disruption.
If Mitigated
Limited impact if isolated in separate VLAN with strict firewall rules and no internet exposure.
🎯 Exploit Status
Multiple public exploits exist. Exploitation requires network access to the camera's web interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Consider replacing affected devices with supported models.
🔧 Temporary Workarounds
Network Segmentation
allIsolate cameras in separate VLAN with strict firewall rules blocking all inbound traffic.
Disable Remote Access
allTurn off UPnP, disable port forwarding, and ensure cameras are not internet-facing.
🧯 If You Can't Patch
- Segment cameras in isolated network with no internet access
- Implement strict firewall rules blocking all unnecessary ports (especially 80/443)
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface. If version is 3.3.4.2103, device is vulnerable.Check Version:
Access camera web interface and check firmware version in settings.Verify Fix Applied:
No fix available. Verify workarounds by testing network isolation and firewall rules.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in thttpd logs
- Multiple failed login attempts
- Unexpected process creation
Network Indicators:
- Unusual outbound connections from camera
- Exploit payload patterns in HTTP requests
- Port scanning from camera IP
SIEM Query:
source="camera_logs" AND ("thttpd" AND "exec" OR "system")🔗 References
- http://packetstormsecurity.com/files/151725/Master-IP-CAM-01-3.3.4.2103-Remote-Command-Execution.html
- https://syrion.me/blog/
- https://www.exploit-db.com/exploits/46400/
- http://packetstormsecurity.com/files/151725/Master-IP-CAM-01-3.3.4.2103-Remote-Command-Execution.html
- https://syrion.me/blog/
- https://www.exploit-db.com/exploits/46400/
