CVE-2024-55024
📋 TL;DR
An authentication bypass vulnerability in Weintek cMT-3072XH2 HMI devices allows unauthorized attackers to perform administrative actions using service accounts. This affects industrial control systems using these devices with vulnerable software versions. Attackers can gain administrative privileges without proper authentication.
💻 Affected Systems
- Weintek cMT-3072XH2
📦 What is this software?
Easyweb by Weintek
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of industrial control systems, unauthorized configuration changes, disruption of manufacturing processes, potential safety incidents, and data exfiltration.
Likely Case
Unauthorized administrative access leading to configuration changes, operational disruption, and potential data manipulation in industrial environments.
If Mitigated
Limited impact if devices are isolated in segmented networks with strict access controls and monitoring.
🎯 Exploit Status
Public proof-of-concept demonstrates exploitation. The vulnerability allows bypassing authentication mechanisms to access administrative functions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Monitor Weintek security advisories for updates. Consider workarounds and mitigation strategies.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Weintek devices in separate network segments with strict firewall rules
Access Control Lists
allImplement strict IP-based access controls to limit connections to authorized management systems only
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable devices from untrusted networks
- Deploy intrusion detection systems to monitor for unauthorized access attempts
- Implement strict access controls and authentication mechanisms at network perimeter
- Regularly monitor device logs for suspicious authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check device software version via web interface or device configuration. Vulnerable if running easyweb v2.1.53 with OS v20231011.Check Version:
Check via device web interface or configuration tools. No standard CLI command available.Verify Fix Applied:
Verify software version has been updated to a patched version (when available) and test authentication mechanisms.📡 Detection & Monitoring
Log Indicators:
- Unauthorized authentication attempts
- Service account usage from unexpected IPs
- Administrative actions from non-admin accounts
Network Indicators:
- HTTP requests to administrative endpoints without proper authentication
- Traffic to service account endpoints from unauthorized sources
SIEM Query:
source="weintek-device" AND (event_type="authentication" AND result="failure") OR (event_type="admin_action" AND user="service_account")