CVE-2024-52714
📋 TL;DR
A buffer overflow vulnerability in Tenda AC6 routers allows attackers to execute arbitrary code by sending specially crafted requests to the 'fromSetSysTime' function. This affects Tenda AC6 v2.0 routers running firmware version 15.03.06.50. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- Tenda AC6 v2.0
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full router compromise, credential theft, network traffic interception, and lateral movement into connected networks.
Likely Case
Router takeover allowing attackers to modify DNS settings, intercept traffic, or use the device as a pivot point for further attacks.
If Mitigated
Limited impact if the router is behind a firewall with strict inbound filtering and network segmentation.
🎯 Exploit Status
Public proof-of-concept code exists on GitHub. The vulnerability requires no authentication and has a simple exploitation path.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://tenda.com
Restart Required: Yes
Instructions:
1. Check Tenda's official website for firmware updates. 2. Download the latest firmware for AC6 v2.0. 3. Log into router admin interface. 4. Navigate to System Tools > Firmware Upgrade. 5. Upload and install the new firmware. 6. Reboot the router.
🔧 Temporary Workarounds
Disable Remote Management
allPrevents external attackers from accessing the vulnerable interface
Network Segmentation
allIsolate the router from critical internal networks
🧯 If You Can't Patch
- Replace the vulnerable router with a different model or vendor
- Implement strict firewall rules to block all inbound traffic to the router's management interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under System Status or System ToolsCheck Version:
Login to router web interface and check System Status pageVerify Fix Applied:
Verify firmware version has been updated to a version later than v15.03.06.50📡 Detection & Monitoring
Log Indicators:
- Unusual requests to /goform/SetSysTime or similar time-setting endpoints
- Multiple failed login attempts followed by buffer overflow patterns
Network Indicators:
- Unusual outbound connections from router to unknown IPs
- DNS hijacking patterns
- Traffic redirection
SIEM Query:
source="router_logs" AND (uri="/goform/SetSysTime" OR uri="/goform/setSysTime") AND status=200