CVE-2024-3871
📋 TL;DR
Delta Electronics DVW-W02W2-E2 devices have critical vulnerabilities in their web administration interface that allow remote unauthenticated attackers to execute arbitrary commands with elevated privileges. This affects all versions up to 2.5.2 of these industrial networking devices. Attackers can completely compromise affected devices without any authentication.
💻 Affected Systems
- Delta Electronics DVW-W02W2-E2
⚠️ 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 leading to lateral movement into industrial control networks, data exfiltration, or disruption of critical operations
Likely Case
Remote code execution allowing attackers to install persistent backdoors, steal credentials, or use device as pivot point
If Mitigated
Limited impact if devices are behind firewalls with strict network segmentation and access controls
🎯 Exploit Status
Command injection vulnerabilities typically have low exploitation complexity, especially when unauthenticated
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Contact Delta Electronics for patch availability 2. If patch available, download from vendor portal 3. Backup configuration 4. Apply firmware update 5. Verify version is >2.5.2
🔧 Temporary Workarounds
Network Segmentation
allIsolate DVW-W02W2-E2 devices from untrusted networks and internet
Access Control Lists
linuxRestrict access to web administration interface to trusted IP addresses only
iptables -A INPUT -p tcp --dport 80 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Disable web administration interface if not required for operations
- Implement network monitoring and intrusion detection for suspicious traffic to device management ports
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or CLI. If version is 2.5.2 or lower, device is vulnerableCheck Version:
Check web interface System Information page or use vendor-specific CLI commandsVerify Fix Applied:
Verify firmware version is greater than 2.5.2 after applying vendor patch📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by successful access
- Suspicious process creation
Network Indicators:
- Unusual outbound connections from device
- Traffic to known malicious IPs
- Unexpected port scanning from device
SIEM Query:
source="dvw-w02w2-e2" AND (event_type="command_execution" OR event_type="authentication_failure")