CVE-2024-4081
📋 TL;DR
A memory corruption vulnerability in NI LabVIEW due to improper length checks could allow information disclosure or arbitrary code execution when users open specially crafted VI files. This affects NI LabVIEW 2024 Q1 and earlier versions. Users who open untrusted VI files are at risk.
💻 Affected Systems
- NI LabVIEW
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with arbitrary code execution at the privilege level of the LabVIEW user, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Information disclosure from memory or application crashes when users open malicious VI files from untrusted sources.
If Mitigated
Limited impact with proper user training and file validation controls in place.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious VI file. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: NI LabVIEW 2024 Q2 or later
Restart Required: Yes
Instructions:
1. Download and install NI LabVIEW 2024 Q2 or later from NI website. 2. Restart the system after installation. 3. Verify the update was successful by checking the LabVIEW version.
🔧 Temporary Workarounds
Restrict VI file execution
allConfigure application control policies to restrict execution of VI files from untrusted sources.
User awareness training
allTrain users to only open VI files from trusted sources and verify file integrity.
🧯 If You Can't Patch
- Implement strict file validation policies to block untrusted VI files
- Use application sandboxing or virtualization for LabVIEW when handling untrusted files
🔍 How to Verify
Check if Vulnerable:
Check LabVIEW version via Help > About LabVIEW. If version is 2024 Q1 or earlier, the system is vulnerable.Check Version:
On Windows: Check via LabVIEW GUI Help > About LabVIEW. No direct command-line version check available.Verify Fix Applied:
Verify LabVIEW version is 2024 Q2 or later via Help > About LabVIEW.📡 Detection & Monitoring
Log Indicators:
- Unexpected LabVIEW crashes
- Memory access violations in LabVIEW process logs
- Suspicious VI file execution events
Network Indicators:
- Unusual file transfers of VI files
- Phishing emails with VI attachments
SIEM Query:
source="labview.log" AND (event="crash" OR event="memory_violation")🔗 References
- https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/memory-corruption-issues-due-to-improper-length-checks-in-labview.html
- https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/memory-corruption-issues-due-to-improper-length-checks-in-labview.html
