CVE-2024-4079
📋 TL;DR
An out-of-bounds read vulnerability in LabVIEW allows attackers to read memory beyond allocated buffers, potentially disclosing sensitive information or enabling arbitrary code execution. This affects users who open specially crafted VI files in LabVIEW 2024 Q1 and earlier versions. Attackers must trick users into opening malicious files.
💻 Affected Systems
- LabVIEW
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Arbitrary code execution with the privileges of the LabVIEW user, potentially leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Information disclosure through memory leaks, potentially exposing sensitive data like credentials or application secrets.
If Mitigated
Limited impact with proper user training and file restrictions, though information disclosure may still occur.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious VI file. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: LabVIEW 2024 Q2 or later
Restart Required: Yes
Instructions:
1. Download and install LabVIEW 2024 Q2 or later from NI's official website.
2. Restart the system after installation.
3. Verify the update by checking the LabVIEW version.
🔧 Temporary Workarounds
Restrict VI file execution
allBlock execution of untrusted VI files through application control policies.
User awareness training
allTrain users to only open VI files from trusted sources.
🧯 If You Can't Patch
- Implement strict file access controls to prevent users from opening untrusted VI files.
- Use application whitelisting to restrict LabVIEW execution to trusted environments only.
🔍 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:
Not applicable - use GUI method above.Verify Fix Applied:
Verify LabVIEW version is 2024 Q2 or later in Help > About LabVIEW.📡 Detection & Monitoring
Log Indicators:
- Unusual LabVIEW process crashes
- Unexpected memory access errors in system logs
Network Indicators:
- No network indicators - this is a local file-based vulnerability
SIEM Query:
EventID: 1000 OR EventID: 1001 WHERE ProcessName='LabVIEW.exe' AND Description CONTAINS 'access violation'🔗 References
- https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/out-of-bounds-read-due-to-missing-bounds-check-in-labview.html
- https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/out-of-bounds-read-due-to-missing-bounds-check-in-labview.html
