CVE-2024-41716
📋 TL;DR
This vulnerability allows attackers who obtain project files from WindLDR and WindO/I-NV4 software to extract cleartext credentials for PLCs and Operator Interfaces. Affected organizations using IDEC's industrial control software could have their operational technology compromised. The vulnerability affects users who store project files containing sensitive authentication data.
💻 Affected Systems
- WindLDR
- WindO/I-NV4
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of industrial control systems allowing attackers to manipulate PLC operations, halt production lines, or cause physical damage to equipment.
Likely Case
Unauthorized access to PLC systems leading to operational disruption, data theft, or manipulation of industrial processes.
If Mitigated
Limited impact if project files are properly secured and network segmentation prevents unauthorized access to control systems.
🎯 Exploit Status
Exploitation requires access to project files, which may be obtained through network compromise, insider threats, or improper file sharing.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: WindLDR version 6.30 or later, WindO/I-NV4 version 4.30 or later
Vendor Advisory: https://us.idec.com/media/24-RD-0219-EN.pdf
Restart Required: Yes
Instructions:
1. Download updated software from IDEC website. 2. Install the update following vendor instructions. 3. Restart affected systems. 4. Recreate project files with new version to ensure credentials are properly encrypted.
🔧 Temporary Workarounds
Secure Project File Storage
allImplement strict access controls and encryption for all project files containing PLC credentials.
Network Segmentation
allIsolate PLC networks from business networks to prevent unauthorized access to project files.
🧯 If You Can't Patch
- Implement strict file access controls and encryption for all project files
- Isolate PLC networks and implement network segmentation to limit attack surface
🔍 How to Verify
Check if Vulnerable:
Check project files for cleartext credentials using hex editors or string analysis tools. Review software version in affected products.Check Version:
Check version in software Help > About menu or program propertiesVerify Fix Applied:
Verify software version is 6.30 or later for WindLDR, 4.30 or later for WindO/I-NV4. Test that new project files do not contain cleartext credentials.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access to project files
- Failed authentication attempts on PLC systems
- Unexpected PLC configuration changes
Network Indicators:
- Unauthorized network connections to PLC ports
- Traffic patterns indicating PLC manipulation
SIEM Query:
source="*" ("WindLDR" OR "WindO/I-NV4") AND ("project" OR "credential" OR "authentication")