CVE-2025-0327
📋 TL;DR
This CVE describes an Improper Privilege Management vulnerability in two Schneider Electric services where an attacker with standard user privileges can modify the executable path of Windows services. When services are restarted, this allows privilege escalation leading to loss of confidentiality, integrity, and availability of engineering workstations. Affected systems are Schneider Electric engineering workstations running vulnerable versions of the specified services.
💻 Affected Systems
- Schneider Electric engineering workstation services (audit trail management and client request server)
⚠️ 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
Attacker gains full control of engineering workstation, potentially compromising industrial control systems, manipulating audit trails, and disrupting operations.
Likely Case
Privilege escalation leading to unauthorized access to sensitive engineering data and potential manipulation of client-server communications.
If Mitigated
Limited impact with proper service hardening, least privilege principles, and monitoring in place.
🎯 Exploit Status
Requires standard user privileges and ability to restart services. No public exploit code available at time of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Schneider Electric advisory SEVD-2025-042-03
Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-042-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-042-03.pdf
Restart Required: No
Instructions:
1. Download and review Schneider Electric advisory SEVD-2025-042-03. 2. Apply vendor-provided patches or updates. 3. Verify service configurations post-patch.
🔧 Temporary Workarounds
Service Hardening
WindowsRestrict service executable path modifications through Windows permissions and service hardening
icacls "C:\Path\To\Services" /deny Users:(WD,AD)
Least Privilege Implementation
WindowsRemove standard users' ability to restart critical services
sc sdset ServiceName D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)
🧯 If You Can't Patch
- Implement strict access controls to prevent standard users from modifying service configurations
- Monitor service executable paths and service restarts for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check service configurations: sc qc ServiceName and verify executable paths are not writable by standard usersCheck Version:
Check with Schneider Electric management tools or refer to vendor documentationVerify Fix Applied:
Verify patch installation via vendor-specific version checks and confirm service permissions are properly restricted📡 Detection & Monitoring
Log Indicators:
- Windows Event Logs: Service Control Manager events (7036, 7040, 7045) showing service path modifications
- Security logs: Privilege use events for service configuration changes
Network Indicators:
- Unusual service restarts or connections from engineering workstations
SIEM Query:
EventID=7045 OR EventID=7040 | where ServiceName contains "Schneider" OR TargetUserName contains privileged accounts