CVE-2024-9852
📋 TL;DR
This vulnerability allows a local authenticated attacker to execute malicious code by placing a specially crafted DLL in a specific folder. It affects multiple Mitsubishi Electric industrial control software products and could lead to data theft, tampering, destruction, or denial of service.
💻 Affected Systems
- Mitsubishi Electric GENESIS64
- Mitsubishi Electric Iconics Digital Solutions GENESIS64
- Mitsubishi Electric ICONICS Suite
- Mitsubishi Electric Iconics Digital Solutions ICONICS Suite
- Mitsubishi Electric MC Works64
- Mitsubishi Electric GENESIS32
- Mitsubishi Electric Iconics Digital Solutions GENESIS32
⚠️ 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 allowing data exfiltration, manipulation of industrial processes, permanent data destruction, or sustained denial of service affecting critical operations.
Likely Case
Local privilege escalation leading to unauthorized access to sensitive industrial control data and potential disruption of monitoring/control functions.
If Mitigated
Limited impact with proper access controls preventing unauthorized local access and DLL placement.
🎯 Exploit Status
Exploitation requires local authenticated access and ability to place DLL in specific folder. No public exploit code available at time of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: See vendor advisory for specific product updates
Vendor Advisory: https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2024-010_en.pdf
Restart Required: Yes
Instructions:
1. Review vendor advisory for specific product updates. 2. Apply security updates provided by Mitsubishi Electric. 3. Restart affected systems after patching. 4. Verify patch installation.
🔧 Temporary Workarounds
Restrict DLL loading from untrusted locations
windowsConfigure Windows DLL search order to prevent loading from current directory or untrusted paths
Set CWDIllegalInDllSearch registry value to 0xFFFFFFFF (Windows 7/2008R2+)
Use SetDefaultDllDirectories API in applications
Implement strict file permissions
windowsRestrict write permissions to application folders to prevent DLL placement
icacls "C:\Program Files\Mitsubishi\*" /deny Users:(OI)(CI)W
icacls "C:\Program Files (x86)\Mitsubishi\*" /deny Users:(OI)(CI)W
🧯 If You Can't Patch
- Implement strict access controls to limit local authenticated users who can access affected systems
- Monitor for suspicious DLL files in application directories and unauthorized file creation events
🔍 How to Verify
Check if Vulnerable:
Check if affected Mitsubishi software is installed and running without security updates. Review vendor advisory for specific version checks.Check Version:
Check software version through Control Panel > Programs and Features or vendor-specific management toolsVerify Fix Applied:
Verify security updates are installed via Windows Update history or software version checks. Confirm DLL search path restrictions are in place.📡 Detection & Monitoring
Log Indicators:
- Windows Event Logs showing DLL loading from unusual locations
- File creation events in application directories for DLL files
- Process creation from unexpected locations
Network Indicators:
- Unusual outbound connections from industrial control software
- Anomalous authentication patterns to affected systems
SIEM Query:
EventID=4688 AND (NewProcessName contains "GENESIS" OR NewProcessName contains "ICONICS") AND CommandLine contains ".dll"