CVE-2025-43984
📋 TL;DR
This vulnerability allows remote unauthenticated attackers to execute arbitrary operating system commands with root privileges on KuWFi GC111 devices. Attackers can exploit this by sending a crafted POST request to the /goform/goform_set_cmd_process endpoint with a malicious SSID parameter. All KuWFi GC111 devices with the specified hardware and software versions are affected.
💻 Affected Systems
- KuWFi GC111 devices
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to install persistent backdoors, pivot to internal networks, exfiltrate data, or use the device as part of a botnet.
Likely Case
Attackers gain full control of vulnerable devices to monitor network traffic, intercept communications, or use devices for DDoS attacks.
If Mitigated
If devices are behind firewalls with strict inbound filtering, risk is reduced but still present from internal threats or if firewalls are bypassed.
🎯 Exploit Status
Exploitation requires only a single HTTP POST request with crafted parameters. Public proof-of-concept code is available in GitHub repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch is currently available. Monitor KuWFi website and security advisories for updates.
🔧 Temporary Workarounds
Network Access Control
linuxBlock access to the vulnerable endpoint from untrusted networks
iptables -A INPUT -p tcp --dport 80 -m string --string "goform_set_cmd_process" --algo bm -j DROP
iptables -A INPUT -p tcp --dport 443 -m string --string "goform_set_cmd_process" --algo bm -j DROP
Web Application Firewall Rules
allAdd WAF rules to block malicious requests to the vulnerable endpoint
Add rule: Block requests containing "goform_set_cmd_process" in URL path with SSID parameter containing shell metacharacters
🧯 If You Can't Patch
- Isolate affected devices in a separate network segment with strict firewall rules
- Disable remote management interfaces and restrict administrative access to trusted IP addresses only
🔍 How to Verify
Check if Vulnerable:
Check device web interface for hardware/software versions. Test by sending a POST request to http://[device_ip]/goform/goform_set_cmd_process with SSID parameter containing command injection payload.Check Version:
Check device web interface or use: curl -s http://[device_ip]/ | grep -i 'version'Verify Fix Applied:
Verify that command injection attempts no longer succeed and that the endpoint properly validates/sanitizes input.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /goform/goform_set_cmd_process with SSID parameter containing shell metacharacters (;, |, &, $, etc.)
- Unusual process execution or network connections from device
Network Indicators:
- HTTP traffic to device port 80/443 with POST requests to vulnerable endpoint
- Outbound connections from device to suspicious IPs
SIEM Query:
source="device_logs" AND url_path="/goform/goform_set_cmd_process" AND (http_method="POST" AND parameters CONTAINS "SSID=")🔗 References
- https://drive.proton.me/urls/1NRPNBE678#lFyUYIRIBZO5
- https://github.com/actuator/cve/blob/main/Kuwfi/CVE-2025-43984.txt
- https://github.com/actuator/cve/tree/main/kuwfi
- https://www.kuwfi.com/products/300mbps-industrial-router-cat4-4g-cpe-router-extender-strong-wifi-signal-suport-32wifi-users-with-sim-card-slot-95
