CVE-2024-32293
📋 TL;DR
This CVE describes a stack overflow vulnerability in Tenda W30E routers via the page parameter in the fromDhcpListClient function. Attackers can exploit this to execute arbitrary code or crash the device. Users running affected firmware versions are at risk.
💻 Affected Systems
- Tenda W30E
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full device compromise, network takeover, and lateral movement to connected devices.
Likely Case
Router crash causing denial of service, potentially requiring physical reset and disrupting network connectivity.
If Mitigated
Limited impact if isolated from untrusted networks, with only denial of service possible.
🎯 Exploit Status
Public proof-of-concept available; exploitation requires network access to the router's web interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
Check Tenda's official website or support for firmware updates; if unavailable, consider workarounds or replacement.
🔧 Temporary Workarounds
Disable remote management
allPrevent external access to the router's web interface.
Access router settings via web interface, navigate to Advanced > System Tools > Remote Management, disable it.
Network segmentation
allIsolate the router from untrusted networks.
Use firewall rules to restrict access to router IP on ports 80/443 to trusted IPs only.
🧯 If You Can't Patch
- Replace the router with a model that receives security updates.
- Monitor network traffic for unusual access attempts to the router's web interface.
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router web interface under System Status or similar; if version is v1.0.1.25(633), it is vulnerable.Check Version:
curl -s http://router-ip/ | grep -i firmware or check web interface manually.Verify Fix Applied:
Update firmware if available and confirm version has changed from v1.0.1.25(633).📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to /goform/DhcpListClient with malformed page parameter
- Router crash logs or reboots
Network Indicators:
- Spike in traffic to router IP on port 80/443
- Requests with long strings in page parameter
SIEM Query:
source="router_logs" AND (url="/goform/DhcpListClient" AND page_parameter LENGTH > 100)