CVE-2024-11983
📋 TL;DR
This vulnerability allows remote attackers with administrator credentials to execute arbitrary system commands on affected Billion Electric routers via SSH command injection. Attackers can gain full control of the device, potentially compromising network security. Organizations using vulnerable Billion Electric router models are affected.
💻 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
Complete device compromise leading to network takeover, data exfiltration, lateral movement to internal systems, and persistent backdoor installation.
Likely Case
Attackers with stolen or default admin credentials gain router control to intercept traffic, modify configurations, or use as pivot point for further attacks.
If Mitigated
With strong authentication and network segmentation, impact limited to isolated router compromise without access to critical systems.
🎯 Exploit Status
Exploitation requires admin credentials but command injection is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in references
Vendor Advisory: https://www.twcert.org.tw/en/cp-139-8280-ae6e1-2.html
Restart Required: Yes
Instructions:
1. Check Billion Electric website for firmware updates. 2. Download latest firmware for your router model. 3. Apply update via admin interface. 4. Reboot router.
🔧 Temporary Workarounds
Disable SSH access
allTurn off SSH service if not required for management
Restrict SSH access
allLimit SSH connections to trusted management IPs only
🧯 If You Can't Patch
- Change all default admin credentials to strong, unique passwords
- Implement network segmentation to isolate routers from critical systems
🔍 How to Verify
Check if Vulnerable:
Check router admin interface for model and firmware version, then compare with vendor advisoryCheck Version:
ssh admin@router_ip 'show version' or check web admin interfaceVerify Fix Applied:
Verify firmware version matches patched version from vendor after update📡 Detection & Monitoring
Log Indicators:
- Unusual SSH connections from unexpected sources
- Multiple failed SSH login attempts followed by successful login
- Suspicious command execution in SSH logs
Network Indicators:
- Unusual outbound connections from router
- Traffic redirection or DNS changes
- Unexpected SSH traffic patterns
SIEM Query:
source="router_logs" AND (event="ssh_login" AND user="admin") AND command="*;*" OR command="*|*" OR command="*`*"