CVE-2025-43983
📋 TL;DR
KuWFi CPF908-CP5 devices running WEB5.0_LCD_20210125 firmware have unauthenticated API endpoints that allow attackers to access sensitive information, modify device settings, and send SMS messages without authentication. This affects all users of these specific KuWFi devices with the vulnerable firmware version.
💻 Affected Systems
- KuWFi CPF908-CP5
⚠️ 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 takeover allowing attacker to change all settings, steal credentials, send malicious SMS messages, and potentially pivot to internal networks.
Likely Case
Unauthenticated attackers retrieve admin credentials and modify device configurations for malicious purposes.
If Mitigated
Limited impact if devices are behind strict network segmentation and firewalls blocking external access.
🎯 Exploit Status
Exploitation requires simple HTTP requests to specific endpoints with no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found in provided references
Restart Required: No
Instructions:
No official patch available. Check KuWFi vendor website for firmware updates.
🔧 Temporary Workarounds
Network Access Control
linuxBlock external access to device management interfaces
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
VLAN Segmentation
allIsolate vulnerable devices on separate network segments
🧯 If You Can't Patch
- Immediately remove devices from internet-facing networks
- Implement strict firewall rules to only allow necessary management traffic from trusted sources
🔍 How to Verify
Check if Vulnerable:
Send HTTP GET request to http://device-ip/goform/goform_get_cmd_process?cmd=admin_password and check if password is returned without authentication.Check Version:
Check device web interface or use curl -s http://device-ip/ | grep -i versionVerify Fix Applied:
Test if unauthenticated requests to goform endpoints now require authentication or return error.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated requests to /goform/goform_set_cmd_process or /goform/goform_get_cmd_process
- Multiple failed authentication attempts followed by successful goform access
Network Indicators:
- HTTP requests to goform endpoints without authentication headers
- Unusual SMS sending patterns from device
SIEM Query:
source="device_logs" AND (uri="/goform/goform_set_cmd_process" OR uri="/goform/goform_get_cmd_process") AND NOT auth_status="success"