CVE-2024-11980
📋 TL;DR
Billion Electric routers have a missing authentication vulnerability that allows unauthenticated remote attackers to access administrative functions. Attackers can obtain device information, modify WiFi settings, and restart devices. This affects users of vulnerable Billion Electric router models with specific configurations.
💻 Affected Systems
- Billion Electric routers
⚠️ 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
Attackers could persistently disrupt network connectivity by repeatedly restarting devices, modify WiFi settings to create rogue access points for man-in-the-middle attacks, and gather network information for further exploitation.
Likely Case
Unauthenticated attackers will modify WiFi SSIDs to cause confusion or disruption, restart devices to cause temporary outages, and gather partial device information for reconnaissance.
If Mitigated
With proper network segmentation and access controls, impact is limited to isolated network segments with minimal data exposure.
🎯 Exploit Status
The vulnerability requires no authentication and involves simple HTTP requests to specific endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.twcert.org.tw/en/cp-139-8274-01e55-2.html
Restart Required: No
Instructions:
1. Check Billion Electric website for firmware updates. 2. Download appropriate firmware for your router model. 3. Access router admin interface. 4. Navigate to firmware update section. 5. Upload and apply new firmware.
🔧 Temporary Workarounds
Disable remote management
allTurn off remote administration features to prevent external exploitation
Network segmentation
allPlace routers in isolated network segments with strict firewall rules
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to router management interfaces
- Monitor router logs for unauthorized access attempts and configuration changes
🔍 How to Verify
Check if Vulnerable:
Attempt to access router management functions without authentication using tools like curl or browser to specific endpointsCheck Version:
Check router web interface or use manufacturer-specific CLI commandsVerify Fix Applied:
Test if authentication is now required for previously accessible endpoints📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access to admin endpoints
- Unexpected WiFi SSID changes
- Router restart events
Network Indicators:
- HTTP requests to router management ports from unauthorized sources
- Changes in WiFi broadcast names
SIEM Query:
source="router_logs" AND (event="unauthorized_access" OR event="configuration_change" OR event="reboot")