CVE-2024-39354
📋 TL;DR
This vulnerability allows remote code execution through a stack-based buffer overflow in Delta Electronics DIAScreen software. Attackers can exploit it by tricking users into opening malicious files, potentially compromising industrial control systems. Organizations using DIAScreen for HMI/SCADA applications are affected.
💻 Affected Systems
- Delta Electronics DIAScreen
📦 What is this software?
Diascreen by Deltaww
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of industrial control systems leading to operational disruption, safety incidents, or data theft
Likely Case
Local privilege escalation leading to lateral movement within OT networks
If Mitigated
Limited impact if proper network segmentation and user awareness controls are implemented
🎯 Exploit Status
Requires social engineering to trick users into opening malicious files
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: DIAScreen version 1.2.1.10
Vendor Advisory: https://www.deltaww.com/en-US/Cybersecurity_Advisory
Restart Required: Yes
Instructions:
1. Download DIAScreen version 1.2.1.10 from Delta Electronics website
2. Backup existing configurations
3. Install the update
4. Restart the system
5. Verify installation
🔧 Temporary Workarounds
Restrict file execution
windowsBlock execution of untrusted files through application whitelisting
Configure Windows AppLocker or similar whitelisting solution
User awareness training
allTrain users to avoid opening untrusted files
🧯 If You Can't Patch
- Implement network segmentation to isolate DIAScreen systems from critical networks
- Deploy application control solutions to prevent execution of unauthorized files
🔍 How to Verify
Check if Vulnerable:
Check DIAScreen version in Help > About menuCheck Version:
Not applicable - check through application GUIVerify Fix Applied:
Confirm version shows 1.2.1.10 or higher in Help > About📡 Detection & Monitoring
Log Indicators:
- Unexpected process creation from DIAScreen
- Memory access violations in application logs
Network Indicators:
- Unusual outbound connections from DIAScreen systems
SIEM Query:
source="DIAScreen" AND (event_type="process_creation" OR event_type="access_violation")