CVE-2024-41908
📋 TL;DR
This vulnerability in NX software allows attackers to execute arbitrary code or crash the application by exploiting an out-of-bounds read when parsing malicious PRT files. All NX versions before V2406.3000 are affected. Users who open untrusted PRT files are at risk.
💻 Affected Systems
- NX
⚠️ 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
Remote code execution with the same privileges as the NX process, potentially leading to full system compromise.
Likely Case
Application crash (denial of service) when processing malicious PRT files.
If Mitigated
Limited impact if file parsing is restricted to trusted sources and least privilege principles are followed.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious PRT file. No authentication is needed to trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V2406.3000
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-357412.html
Restart Required: Yes
Instructions:
1. Download NX V2406.3000 or later from Siemens support portal. 2. Install the update following Siemens installation procedures. 3. Restart the system to complete the installation.
🔧 Temporary Workarounds
Restrict PRT file handling
allConfigure NX to only open PRT files from trusted sources and implement file validation controls.
Application sandboxing
allRun NX with reduced privileges or in a sandboxed environment to limit potential damage from exploitation.
🧯 If You Can't Patch
- Implement strict file validation policies to block suspicious PRT files
- Use application whitelisting to prevent execution of unauthorized code
🔍 How to Verify
Check if Vulnerable:
Check NX version in Help > About. If version is below V2406.3000, the system is vulnerable.Check Version:
In NX application: Help > About NXVerify Fix Applied:
Verify NX version is V2406.3000 or higher in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- Application crash logs from NX process
- Unexpected file parsing errors in application logs
Network Indicators:
- Downloads of PRT files from untrusted sources
- Unusual outbound connections from NX process
SIEM Query:
Process: NX.exe AND (EventID: 1000 OR EventID: 1001) OR FileExtension: .prt AND SourceIP: External