CVE-2025-15254
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary operating system commands on Tenda W6-S routers via command injection in the ATE Service component. Attackers can exploit this to gain unauthorized access and control of affected devices. Users of Tenda W6-S routers with firmware version 1.0.0.4(510) are affected.
💻 Affected Systems
- Tenda W6-S
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to install persistent backdoors, intercept network traffic, pivot to internal networks, or use device as botnet node.
Likely Case
Unauthorized access to router configuration, network traffic interception, DNS hijacking, or credential theft from connected devices.
If Mitigated
Limited impact if device is behind firewall with restricted WAN access and proper network segmentation.
🎯 Exploit Status
Exploit details are publicly available on GitHub. Simple HTTP requests can trigger the vulnerability without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.tenda.com.cn/
Restart Required: Yes
Instructions:
1. Check Tenda website for firmware updates. 2. Download latest firmware for W6-S. 3. Access router admin interface. 4. Navigate to System Tools > Firmware Upgrade. 5. Upload and install new firmware. 6. Reboot router.
🔧 Temporary Workarounds
Disable ATE Service
allDisable the vulnerable ATE Service component if not needed for diagnostics.
No standard command - must be done via router web interface if available
Restrict WAN Access
linuxBlock external access to router administration interface using firewall rules.
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Isolate affected routers in separate VLAN with strict firewall rules
- Implement network monitoring for suspicious HTTP requests to /goform/ate endpoint
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under System Status or System Tools. If version is 1.0.0.4(510), device is vulnerable.Check Version:
curl -s http://router-ip/goform/getStatus | grep version (if API available)Verify Fix Applied:
After firmware update, verify version has changed from 1.0.0.4(510) to a newer version.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /goform/ate with suspicious parameters
- Unusual command execution in router logs
- Multiple failed login attempts followed by ATE service access
Network Indicators:
- HTTP traffic to router IP on port 80/443 containing shell metacharacters in POST data
- Unexpected outbound connections from router to external IPs
SIEM Query:
source="router_logs" AND (url="/goform/ate" OR (method="POST" AND uri CONTAINS "ate"))