CVE-2024-12835
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Delta Electronics DRASimuCAD installations by tricking users into opening malicious ICS files. The flaw exists in ICS file parsing where improper data validation enables out-of-bounds writes. Industrial control system operators using DRASimuCAD for electrical design are primarily affected.
💻 Affected Systems
- Delta Electronics DRASimuCAD
📦 What is this software?
Drasimucad by Deltaww
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the engineering workstation, potentially enabling lateral movement to other industrial systems or sabotage of electrical designs.
Likely Case
Attacker gains code execution on the engineering workstation, allowing theft of intellectual property, manipulation of electrical designs, or installation of persistent malware.
If Mitigated
Limited impact with proper network segmentation and user training preventing malicious file execution, though design integrity could still be compromised.
🎯 Exploit Status
Exploitation requires social engineering to deliver malicious ICS file. No authentication bypass needed once file is opened.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Delta Electronics advisory for specific version
Vendor Advisory: https://www.deltaww.com/en-US/Services/DownloadCenter
Restart Required: Yes
Instructions:
1. Check Delta Electronics security advisory for patch details
2. Download latest DRASimuCAD version from official vendor site
3. Install update following vendor instructions
4. Restart system after installation
🔧 Temporary Workarounds
Restrict ICS file handling
windowsConfigure system to open ICS files only with trusted applications or in sandboxed environments
Application whitelisting
windowsImplement application control policies to prevent unauthorized execution
🧯 If You Can't Patch
- Implement strict network segmentation for engineering workstations
- Train users to never open ICS files from untrusted sources and verify file integrity
🔍 How to Verify
Check if Vulnerable:
Check DRASimuCAD version against vendor advisory. If using unpatched version, system is vulnerable.Check Version:
Check Help > About in DRASimuCAD application or review installed programs in Windows Control PanelVerify Fix Applied:
Verify DRASimuCAD version matches or exceeds patched version specified in vendor advisory.📡 Detection & Monitoring
Log Indicators:
- Unexpected process crashes of DRASimuCAD.exe
- Suspicious file operations from DRASimuCAD process
- ICS file opens from unusual locations
Network Indicators:
- ICS file downloads from external sources to engineering workstations
- Unusual outbound connections from DRASimuCAD process
SIEM Query:
Process:DRASimuCAD.exe AND (EventID:1000 OR FileExtension:.ics)