CVE-2017-5173
📋 TL;DR
This CVE describes an OS command injection vulnerability in Geutebruck IP cameras that allows remote attackers to execute arbitrary commands with root privileges. The vulnerability affects Geutebruck G-Cam/EFD-2250 IP cameras running vulnerable firmware versions. Attackers can exploit this to gain complete control of affected devices.
💻 Affected Systems
- Geutebruck G-Cam/EFD-2250 IP Camera
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the IP camera with root access, allowing attackers to install persistent malware, pivot to internal networks, disable security features, or use the device for botnet activities.
Likely Case
Remote code execution leading to camera compromise, video stream interception, device repurposing for DDoS attacks, or credential theft from connected systems.
If Mitigated
Limited impact with proper network segmentation and access controls, though the device remains vulnerable to internal threats.
🎯 Exploit Status
Public exploit code is available on Exploit-DB (ID 41360), making this easily exploitable by attackers with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware version after 1.11.0.12 (check vendor for specific fixed version)
Vendor Advisory: https://ics-cert.us-cert.gov/advisories/ICSA-17-045-02
Restart Required: Yes
Instructions:
1. Download latest firmware from Geutebruck support portal. 2. Backup camera configuration. 3. Upload firmware via web interface. 4. Apply update and restart camera. 5. Verify firmware version after reboot.
🔧 Temporary Workarounds
Network Segmentation
allIsolate IP cameras in separate VLAN with strict firewall rules
Access Control
linuxRestrict camera management interface access to specific IP addresses
iptables -A INPUT -p tcp --dport 80 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Remove internet-facing access and place cameras behind VPN with strong authentication
- Implement network monitoring for unusual outbound connections from camera devices
🔍 How to Verify
Check if Vulnerable:
Check firmware version via camera web interface at System > Information > Firmware VersionCheck Version:
curl -s http://camera_ip/cgi-bin/param.cgi?action=list | grep firmware_versionVerify Fix Applied:
Verify firmware version is updated to patched version and test for command injection using safe payloads📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed login attempts followed by successful access
- Unexpected process creation
Network Indicators:
- Unusual outbound connections from camera
- Traffic to known malicious IPs
- Unexpected port scans originating from camera
SIEM Query:
source="camera_logs" AND ("cmd.exe" OR "bash" OR "/bin/sh" OR "wget" OR "curl" OR "nc")