CVE-2024-4549
📋 TL;DR
A denial-of-service vulnerability in Delta Electronics DIAEnergie allows attackers to cause system restarts by sending specially crafted 'ICS Restart!' messages to CEBC.exe. This affects all organizations running DIAEnergie v1.10.1.8610 and prior versions for industrial control system management.
💻 Affected Systems
- Delta Electronics DIAEnergie
📦 What is this software?
Diaenergie by Deltaww
⚠️ Risk & Real-World Impact
Worst Case
Critical industrial processes are disrupted due to repeated system restarts, potentially causing production downtime, equipment damage, or safety incidents in industrial environments.
Likely Case
Unauthorized system restarts cause service interruptions, loss of monitoring capabilities, and disruption to industrial operations until systems recover.
If Mitigated
With proper network segmentation and access controls, impact is limited to isolated systems with minimal operational disruption.
🎯 Exploit Status
Exploitation requires network access to the vulnerable service. The vulnerability is triggered by sending specific messages to CEBC.exe.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.10.1.8611 or later
Vendor Advisory: https://www.tenable.com/security/research/tra-2024-13
Restart Required: Yes
Instructions:
1. Download latest DIAEnergie version from Delta Electronics
2. Backup current configuration and data
3. Install the updated version following vendor instructions
4. Restart the system to apply changes
🔧 Temporary Workarounds
Network Segmentation
allIsolate DIAEnergie systems from untrusted networks using firewalls
Service Access Restriction
windowsConfigure firewall rules to restrict access to CEBC.exe service port
netsh advfirewall firewall add rule name="Block DIAEnergie Port" dir=in action=block protocol=TCP localport=<port_number>
🧯 If You Can't Patch
- Implement strict network access controls to limit communication with CEBC.exe service
- Monitor for unusual restart patterns and implement alerting for system reboots
🔍 How to Verify
Check if Vulnerable:
Check DIAEnergie version in application interface or installation directory. Versions v1.10.1.8610 and earlier are vulnerable.Check Version:
Check DIAEnergie application interface or installation properties for version informationVerify Fix Applied:
Verify installed version is v1.10.1.8611 or later. Test by attempting to send ICS Restart messages (in controlled environment) and confirming system does not restart.📡 Detection & Monitoring
Log Indicators:
- Unexpected system restarts
- CEBC.exe service termination events
- ICS message processing errors in application logs
Network Indicators:
- Unusual traffic to CEBC.exe service port
- ICS protocol messages containing 'Restart' commands from unauthorized sources
SIEM Query:
source="DIAEnergie" AND (event_type="restart" OR process="CEBC.exe" AND action="terminated")