CVE-2025-39202
📋 TL;DR
An authenticated low-privilege user in MicroSCADA X SYS600's Monitor Pro interface can view and overwrite files, leading to information disclosure and potential data corruption. This affects organizations using this industrial control system software for critical infrastructure monitoring. The vulnerability requires authentication but minimal privileges.
💻 Affected Systems
- MicroSCADA X SYS600
📦 What is this software?
Microscada X Sys600 by Hitachienergy
⚠️ Risk & Real-World Impact
Worst Case
Critical configuration files or operational data could be overwritten, causing system malfunction, loss of process visibility, or manipulation of industrial control parameters in critical infrastructure environments.
Likely Case
Unauthorized access to sensitive configuration files, logs, or operational data, potentially enabling reconnaissance for further attacks or causing limited data corruption.
If Mitigated
With proper access controls and network segmentation, impact is limited to authorized users within the control system network, reducing external threat potential.
🎯 Exploit Status
Exploitation requires authenticated access but minimal technical skill once credentials are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Consult Hitachi Energy advisory for specific patched versions
Vendor Advisory: https://publisher.hitachienergy.com/preview?DocumentID=8DBD000218&LanguageCode=en&DocumentPartId=&Action=Launch
Restart Required: Yes
Instructions:
1. Review Hitachi Energy advisory 8DBD000218
2. Obtain appropriate patch from vendor
3. Apply patch following vendor instructions
4. Restart affected systems as required
🔧 Temporary Workarounds
Restrict Monitor Pro Access
allLimit access to Monitor Pro interface to only necessary personnel using strict authentication controls.
Implement File Integrity Monitoring
windowsDeploy monitoring to detect unauthorized file modifications in critical directories.
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles for all Monitor Pro users
- Segment SCADA network from corporate networks and monitor for unusual file access patterns
🔍 How to Verify
Check if Vulnerable:
Check if running affected MicroSCADA X SYS600 version with Monitor Pro interface enabled and review user privilege assignments.Check Version:
Check MicroSCADA X SYS600 version through system administration interface or vendor documentation.Verify Fix Applied:
Verify patch installation via version check and test that low-privilege users can no longer access or modify unauthorized files.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns by low-privilege users in Monitor Pro logs
- Failed or successful file modification attempts outside normal operations
Network Indicators:
- Unexpected connections to Monitor Pro interface from unauthorized systems
SIEM Query:
source="microscada" AND (event="file_access" OR event="file_modify") AND user_privilege="low"