CVE-2022-1098
📋 TL;DR
Delta Electronics DIAEnergie versions prior to 1.8.02.004 are vulnerable to DLL hijacking combined with incorrect default permissions. This allows local attackers to escalate privileges by placing malicious DLLs in directories with weak permissions. Organizations using DIAEnergie for industrial energy management are affected.
💻 Affected Systems
- Delta Electronics DIAEnergie
📦 What is this software?
Diaenergie by Deltaww
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with administrative privileges, enabling attacker to disrupt industrial operations, steal sensitive data, or deploy ransomware.
Likely Case
Local privilege escalation allowing attackers to gain higher privileges on affected systems, potentially compromising other systems on the network.
If Mitigated
Limited impact with proper access controls and monitoring, though vulnerability remains present.
🎯 Exploit Status
Requires local access to the system. DLL hijacking is a well-known technique with many existing tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.02.004
Vendor Advisory: https://www.cisa.gov/uscert/ics/advisories/icsa-22-081-01
Restart Required: Yes
Instructions:
1. Download DIAEnergie version 1.8.02.004 from Delta Electronics. 2. Backup current configuration. 3. Install the update following vendor instructions. 4. Restart the system. 5. Verify the update was successful.
🔧 Temporary Workarounds
Restrict DLL search path permissions
windowsModify directory permissions to prevent unauthorized DLL placement in application search paths.
icacls "C:\Program Files\DIAEnergie\" /deny Everyone:(OI)(CI)(WD,AD)
Enable Safe DLL Search Mode
windowsConfigure Windows to search system directories first before current directory.
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" /v SafeDllSearchMode /t REG_DWORD /d 1 /f
🧯 If You Can't Patch
- Implement strict access controls to limit local user access to DIAEnergie systems.
- Monitor for suspicious DLL loading events and file creation in application directories.
🔍 How to Verify
Check if Vulnerable:
Check DIAEnergie version in application interface or registry: HKEY_LOCAL_MACHINE\SOFTWARE\Delta Electronics\DIAEnergie\VersionCheck Version:
reg query "HKLM\SOFTWARE\Delta Electronics\DIAEnergie" /v VersionVerify Fix Applied:
Verify version is 1.8.02.004 or higher and check directory permissions on DIAEnergie installation folders.📡 Detection & Monitoring
Log Indicators:
- Windows Event ID 4663 (file access) showing DLL loading from unusual locations
- Application errors related to missing or corrupted DLLs
Network Indicators:
- Unusual outbound connections from DIAEnergie service after exploitation
SIEM Query:
source="windows" AND (event_id=4663 OR event_id=4688) AND (process_name="DIAEnergie.exe" OR file_path="*.dll")