CVE-2024-12298
📋 TL;DR
This vulnerability in NB-series NX-Designer allows attackers to exploit XML External Entity (XXE) processing to read arbitrary files from the system. It affects users of Omron's NB-series NX-Designer software who process untrusted XML input. The vulnerability could lead to disclosure of sensitive data stored on the affected computer.
💻 Affected Systems
- Omron NB-series NX-Designer
⚠️ 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 disclosure of sensitive files including configuration files, credentials, and system information leading to further compromise.
Likely Case
Limited file disclosure from accessible directories, potentially exposing configuration data or application files.
If Mitigated
No data disclosure if XML external entity processing is disabled or proper input validation is implemented.
🎯 Exploit Status
Exploitation requires the ability to supply malicious XML files to the application. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in references, but vendor has released security update
Vendor Advisory: https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2025-002_en.pdf
Restart Required: Yes
Instructions:
1. Download the security update from Omron's security advisory page. 2. Install the update following vendor instructions. 3. Restart the application and verify the fix.
🔧 Temporary Workarounds
Disable external entity processing
allConfigure XML parser to disable external entity resolution
Application-specific configuration - refer to vendor documentation
Input validation and sanitization
allImplement strict validation of XML input and reject files with external entity declarations
Implement XML schema validation and entity filtering
🧯 If You Can't Patch
- Restrict XML file processing to trusted sources only
- Implement network segmentation to isolate vulnerable systems from untrusted networks
🔍 How to Verify
Check if Vulnerable:
Test with XML file containing external entity reference to local file. If file contents are returned, system is vulnerable.Check Version:
Check application version through Help > About menu or vendor-provided version checking toolVerify Fix Applied:
After patch installation, test with same XML file. External entity resolution should be blocked or return empty results.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns from XML parser
- Multiple failed XML parsing attempts
- Large XML file processing errors
Network Indicators:
- Unusual XML file transfers to industrial control systems
- Multiple XML parsing requests from single source
SIEM Query:
source="application_logs" AND (message="XML parsing error" OR message="entity resolution")