CVE-2025-15232
📋 TL;DR
A stack-based buffer overflow vulnerability in Tenda M3 routers allows remote attackers to execute arbitrary code by manipulating the mac/terminal parameter in the formSetAdPushInfo function. This affects Tenda M3 router users running vulnerable firmware. The vulnerability is remotely exploitable without authentication.
💻 Affected Systems
- Tenda M3
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, network infiltration, and potential lateral movement to connected devices.
Likely Case
Router takeover enabling traffic interception, DNS hijacking, credential theft, and deployment of malware on the network.
If Mitigated
Limited impact if device is behind firewall with restricted WAN access, though internal network attacks remain possible.
🎯 Exploit Status
Public exploit details available on GitHub; remote exploitation without authentication makes weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.tenda.com.cn/
Restart Required: Yes
Instructions:
Check Tenda website for firmware updates. If available, download and flash the latest firmware through the router admin interface.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Tenda M3 routers from critical network segments and restrict WAN access.
Access Control Lists
allImplement firewall rules to restrict access to router administration interface.
🧯 If You Can't Patch
- Replace vulnerable Tenda M3 routers with alternative secure devices
- Implement network monitoring and intrusion detection for exploit attempts
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface. If version is 1.0.0.13(4903), device is vulnerable.Check Version:
Check via router web interface or SSH if enabled: cat /proc/version or similar firmware version commandVerify Fix Applied:
Verify firmware version has been updated to a version later than 1.0.0.13(4903).📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/setAdPushInfo with manipulated mac/terminal parameters
- Router crash logs or abnormal reboots
Network Indicators:
- Exploit traffic patterns matching public PoC
- Unusual outbound connections from router
SIEM Query:
http.url:"/goform/setAdPushInfo" AND http.method:POST AND (http.param:"mac" OR http.param:"terminal")