CVE-2025-15137
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on TRENDnet TEW-800MB routers through command injection in the NTPSyncWithHost.cgi function. Attackers can exploit this to gain unauthorized access and control of affected devices. All users of TRENDnet TEW-800MB version 1.0.1.0 are affected.
💻 Affected Systems
- TRENDnet TEW-800MB
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to install persistent backdoors, intercept network traffic, pivot to internal networks, or use the device for botnet activities.
Likely Case
Remote code execution leading to device takeover, credential theft, network surveillance, or participation in DDoS attacks.
If Mitigated
Limited impact if devices are behind firewalls with strict inbound filtering and network segmentation.
🎯 Exploit Status
The exploit is publicly documented and requires minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Contact TRENDnet support for firmware updates or consider replacing affected devices.
🔧 Temporary Workarounds
Network Isolation
allPlace affected devices behind firewalls with strict inbound filtering and isolate them from critical networks.
Disable Remote Management
allDisable WAN-side administration and remote management features if enabled.
🧯 If You Can't Patch
- Immediately isolate affected devices from internet access and critical internal networks
- Implement strict network segmentation and monitor for suspicious outbound connections
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface at http://[device-ip]/ or via serial console. Version 1.0.1.0 is vulnerable.Check Version:
curl -s http://[device-ip]/ | grep -i firmware || ssh admin@[device-ip] 'show version'Verify Fix Applied:
Verify firmware version has been updated to a version later than 1.0.1.0. No official fix currently exists.📡 Detection & Monitoring
Log Indicators:
- Unusual CGI requests to NTPSyncWithHost.cgi
- Suspicious command execution in system logs
- Unexpected process creation
Network Indicators:
- Unusual outbound connections from router
- Traffic to known malicious IPs
- Unexpected port scans originating from device
SIEM Query:
source="router_logs" AND (uri="*NTPSyncWithHost.cgi*" OR command="*;*" OR command="*|*" OR command="*`*")