CVE-2024-45273
📋 TL;DR
CVE-2024-45273 allows an unauthenticated local attacker to decrypt device configuration files due to weak encryption implementation, potentially compromising the device. This affects systems using vulnerable firmware versions where local access is possible. Attackers can gain unauthorized access to sensitive configuration data.
💻 Affected Systems
- Multiple industrial control systems and embedded devices from various manufacturers
📦 What is this software?
Mbconnect24 by Mbconnectline
Mbnet Firmware by Mbconnectline
Mbnet Hw1 Firmware by Mbconnectline
Mbnet.mini Firmware by Mbconnectline
Mbnet.rokey Firmware by Mbconnectline
Mymbconnect24 by Mbconnectline
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to modify configurations, steal credentials, or pivot to other systems on the network.
Likely Case
Unauthorized access to sensitive configuration data including passwords, network settings, and device parameters.
If Mitigated
Limited impact with proper network segmentation and access controls preventing local attacker access.
🎯 Exploit Status
Exploitation requires local access to the device but does not require authentication. Proof of concept details available in public advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Varies by manufacturer - check specific vendor advisories
Vendor Advisory: https://cert.vde.com/en/advisories/VDE-2024-056
Restart Required: Yes
Instructions:
1. Identify affected devices using manufacturer tools. 2. Download latest firmware from vendor portal. 3. Backup current configuration. 4. Apply firmware update following vendor instructions. 5. Verify encryption implementation in updated version.
🔧 Temporary Workarounds
Network Segmentation
allIsolate vulnerable devices in separate network segments to limit local attacker access
Access Control Hardening
allImplement strict access controls to prevent unauthorized local access to devices
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable devices
- Monitor for unauthorized access attempts and configuration changes
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisories. Use manufacturer-specific tools to verify encryption implementation.Check Version:
Manufacturer-specific command varies by device - typically accessed via device web interface or CLIVerify Fix Applied:
Verify firmware version has been updated to patched version. Test configuration file encryption using vendor verification tools.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to configuration files
- Multiple failed decryption attempts
- Configuration file access outside normal operations
Network Indicators:
- Unusual network traffic to/from industrial control devices
- Protocol anomalies in device communications
SIEM Query:
source="industrial_device" AND (event_type="config_access" OR event_type="decryption_failure")