CVE-2024-39342
📋 TL;DR
This vulnerability in Entrust Instant Financial Issuance (formerly Cardwizard) allows attackers to decrypt passwords using static hard-coded AES keys, potentially leading to privilege escalation on Windows systems. Organizations using affected versions of this financial card issuance software are at risk.
💻 Affected Systems
- Entrust Instant Financial Issuance (formerly Cardwizard)
⚠️ 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
Full system compromise through privilege escalation to administrative rights, enabling complete control over the Windows host and access to sensitive financial card issuance systems.
Likely Case
Unauthorized access to the Entrust application with elevated privileges, potentially allowing manipulation of financial card issuance processes or data exfiltration.
If Mitigated
Limited impact if proper network segmentation, least privilege access controls, and monitoring are in place to detect unauthorized access attempts.
🎯 Exploit Status
Exploitation requires access to the encrypted password from WebAPI.cfg.xml and knowledge of the static AES keys. The GitHub gist provides technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://trustedcare.entrust.com/login
Restart Required: No
Instructions:
1. Contact Entrust support through TrustedCare portal for guidance. 2. Monitor vendor communications for patches or updates. 3. Consider upgrading to unaffected versions if available.
🔧 Temporary Workarounds
Restrict File Access
windowsLimit access to WebAPI.cfg.xml file to prevent attackers from obtaining the encrypted password needed for exploitation.
icacls "C:\Path\To\WebAPI.cfg.xml" /deny Everyone:(R)
Network Segmentation
allIsolate Entrust Instant Financial Issuance systems from untrusted networks and implement strict firewall rules.
🧯 If You Can't Patch
- Implement strict access controls and monitoring on systems running vulnerable versions
- Consider temporary suspension of affected systems if risk is unacceptable
🔍 How to Verify
Check if Vulnerable:
Check installed version of Entrust Instant Financial Issuance against affected versions list. Verify presence of DCG.Security.dll and WebAPI.cfg.xml files.Check Version:
Check application properties or installation directory for version informationVerify Fix Applied:
Confirm with vendor that updated version no longer uses static hard-coded AES keys in DCG.Security.dll.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to WebAPI.cfg.xml
- Unusual privilege escalation events
- Suspicious DLL loading patterns
Network Indicators:
- Unusual outbound connections from Entrust systems
- Traffic patterns indicating data exfiltration
SIEM Query:
source="windows-security" AND (event_id=4688 OR event_id=4624) AND process_name="*entrust*" AND user_name_changed=true