CVE-2023-37144
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on Tenda AC10 routers by injecting malicious commands into the mac parameter of the formWriteFacMac function. Attackers can gain full control of affected devices, potentially compromising network security. Users running Tenda AC10 v15.03.06.26 firmware are affected.
💻 Affected Systems
- Tenda AC10
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover leading to persistent backdoor installation, network traffic interception, credential theft, and lateral movement to other network devices.
Likely Case
Router compromise allowing attackers to modify DNS settings, intercept traffic, deploy malware to connected devices, or use the router as part of a botnet.
If Mitigated
Limited impact if device is behind strict firewall rules, not internet-facing, and network segmentation prevents lateral movement.
🎯 Exploit Status
Public exploit details available in GitHub repository. Command injection vulnerabilities are typically easy to weaponize once details are public.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check Tenda official website for firmware updates. 2. Download latest firmware for AC10 model. 3. Access router admin interface. 4. Navigate to firmware upgrade section. 5. Upload and apply new firmware. 6. Reboot router after update completes.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router administration interface
Network Segmentation
allIsolate router management interface to separate VLAN
🧯 If You Can't Patch
- Replace affected router with different model or vendor
- Implement strict firewall rules blocking all inbound traffic to router management interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface. If version is exactly v15.03.06.26, device is vulnerable.Check Version:
Login to router admin interface and check System Status or Firmware Update sectionVerify Fix Applied:
Verify firmware version has changed from v15.03.06.26 to a newer version after update.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in router logs
- Multiple failed login attempts followed by successful access
- Unexpected firmware modification attempts
Network Indicators:
- Unusual outbound connections from router
- DNS hijacking patterns
- Traffic redirection to suspicious IPs
SIEM Query:
source="router_logs" AND ("formWriteFacMac" OR "mac parameter" OR command_injection)