CVE-2023-38024
📋 TL;DR
This vulnerability allows remote attackers to access SpotCam FHD 2 devices via hidden Telnet using hard-coded credentials. Attackers can execute arbitrary system commands or disrupt services without authentication. All users of affected SpotCam devices are at risk.
💻 Affected Systems
- SpotCam Co., Ltd. SpotCam FHD 2
📦 What is this software?
Fhd 2 Firmware by Myspotcam
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover allowing installation of persistent malware, data exfiltration, or use in botnets for DDoS attacks.
Likely Case
Unauthorized access leading to camera feed interception, device configuration changes, or service disruption.
If Mitigated
Limited impact if Telnet is disabled or network access is restricted, though hard-coded credentials remain a risk.
🎯 Exploit Status
Exploitation requires only Telnet access with known hard-coded credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.twcert.org.tw/tw/cp-132-7331-9099e-1.html
Restart Required: No
Instructions:
No official patch available. Contact SpotCam vendor for firmware updates or mitigation guidance.
🔧 Temporary Workarounds
Disable Telnet Service
allDisable the hidden Telnet service if possible through device configuration.
Check device admin interface for Telnet/service management options
Network Segmentation
linuxIsolate SpotCam devices on separate VLANs with strict firewall rules.
iptables -A INPUT -p tcp --dport 23 -j DROP
ufw deny 23/tcp
🧯 If You Can't Patch
- Block Telnet port 23 at network perimeter and internal firewalls
- Monitor for Telnet connection attempts and unauthorized access patterns
🔍 How to Verify
Check if Vulnerable:
Attempt Telnet connection to device port 23 using known hard-coded credentials (not publicly disclosed).Check Version:
Check device firmware version through web interface or contact vendor.Verify Fix Applied:
Verify Telnet port 23 is closed or requires authentication, and no unauthorized access is possible.📡 Detection & Monitoring
Log Indicators:
- Telnet connection logs
- Unauthorized login attempts
- Unusual system command execution
Network Indicators:
- Telnet traffic to port 23
- Unusual outbound connections from device
SIEM Query:
source_port=23 OR destination_port=23 AND (device_type="SpotCam" OR device_vendor="SpotCam")