CVE-2026-2017
📋 TL;DR
A critical stack-based buffer overflow vulnerability in IP-COM W30AP access points allows remote attackers to execute arbitrary code or crash the device. The vulnerability exists in the wx3auth authentication handler and can be exploited via specially crafted POST requests. All users of affected firmware versions are at risk.
💻 Affected Systems
- IP-COM W30AP
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, persistence, lateral movement, and data exfiltration.
Likely Case
Device crash/reboot causing service disruption, or remote code execution for botnet recruitment.
If Mitigated
Denial of service if exploit fails but crashes the service.
🎯 Exploit Status
Public proof-of-concept demonstrates exploitation via buffer overflow in R7WebsSecurityHandler function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Contact vendor IP-COM for updated firmware. If unavailable, implement workarounds or replace hardware.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected devices in separate VLANs with strict firewall rules.
Access Control
linuxRestrict access to management interface using firewall rules or authentication proxies.
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Replace affected devices with supported models from vendors providing security updates.
- Deploy network-based intrusion prevention systems (IPS) to detect and block exploit attempts.
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface at System Status > Firmware Version or via SSH if enabled.Check Version:
Check web interface or use: cat /proc/version (if SSH access available)Verify Fix Applied:
Verify firmware version is above 1.0.0.11(1340) when patch becomes available.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/wx3auth
- Device crash/reboot logs
- Buffer overflow error messages
Network Indicators:
- POST requests to /goform/wx3auth with large data parameters
- Traffic patterns matching public PoC
SIEM Query:
source="firewall" AND dest_port=80 AND uri_path="/goform/wx3auth" AND http_method="POST" AND data_size>threshold