CVE-2024-4044
📋 TL;DR
This vulnerability allows remote code execution through deserialization of untrusted data in NI FlexLogger and InstrumentStudio. Attackers can exploit it by tricking users into opening malicious project files. It affects users of NI FlexLogger 2024 Q1 and prior versions, and NI InstrumentStudio 2024 Q1 and prior versions.
💻 Affected Systems
- NI FlexLogger
- NI InstrumentStudio
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the affected system, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation or arbitrary code execution in the context of the user opening the malicious file, potentially leading to credential theft or malware installation.
If Mitigated
Limited impact with proper application sandboxing, user awareness training preventing malicious file opening, and network segmentation limiting lateral movement.
🎯 Exploit Status
Exploitation requires social engineering to get users to open malicious files. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2024 Q1
Vendor Advisory: https://ni.com/r/CVE-2024-4044
Restart Required: Yes
Instructions:
1. Download and install the latest version of NI FlexLogger or InstrumentStudio from the NI website. 2. Uninstall previous vulnerable versions. 3. Restart the system after installation.
🔧 Temporary Workarounds
Restrict project file execution
windowsConfigure application control policies to restrict execution of project files from untrusted sources.
User awareness training
allTrain users to only open project files from trusted sources and verify file integrity.
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of unauthorized applications.
- Use network segmentation to isolate systems running vulnerable software from critical assets.
🔍 How to Verify
Check if Vulnerable:
Check the installed version of NI FlexLogger or InstrumentStudio. If version is 2024 Q1 or earlier, the system is vulnerable.Check Version:
Check Help > About in the application interface or review installed programs in Windows Control Panel.Verify Fix Applied:
Verify that NI FlexLogger or InstrumentStudio version is later than 2024 Q1.📡 Detection & Monitoring
Log Indicators:
- Unexpected process creation from NI FlexLogger or InstrumentStudio
- Unusual file access patterns from these applications
Network Indicators:
- Outbound connections from NI applications to unexpected external IPs
- DNS queries for suspicious domains from affected systems
SIEM Query:
Process creation where parent process contains 'FlexLogger' or 'InstrumentStudio' and command line contains unusual parameters or file paths