CVE-2024-0400
📋 TL;DR
This vulnerability allows authenticated malicious clients to execute arbitrary code on SCM Server by sending specially crafted LINQ queries that bypass validation. It affects SCM Software client-server applications where authenticated system manager clients can execute custom filtering queries. Attackers can achieve remote code execution on the server.
💻 Affected Systems
- SCM Software
⚠️ 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 compromise of SCM Server allowing execution of any command, data theft, lateral movement, and persistent backdoor installation.
Likely Case
Unauthorized command execution leading to data exfiltration, service disruption, or deployment of malware.
If Mitigated
Limited impact if network segmentation restricts SCM Server access and strong authentication controls are in place.
🎯 Exploit Status
Exploitation requires authenticated access but appears straightforward once authentication is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references; consult vendor advisory for patched version.
Vendor Advisory: https://publisher.hitachienergy.com/preview?DocumentId=8DBD000189&languageCode=en&Preview=true
Restart Required: Yes
Instructions:
1. Review vendor advisory for affected versions. 2. Apply vendor-provided patch. 3. Restart SCM Server services. 4. Verify patch application.
🔧 Temporary Workarounds
Restrict Client Access
allLimit network access to SCM Server to only trusted clients and administrators.
Implement Input Validation
allAdd additional validation layers for LINQ queries on server-side.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate SCM Server from untrusted networks.
- Enforce least privilege access controls and monitor authenticated user activities closely.
🔍 How to Verify
Check if Vulnerable:
Check if running affected SCM Software version by consulting vendor advisory and comparing version numbers.Check Version:
Consult SCM Software documentation for version check command; typically via application interface or configuration files.Verify Fix Applied:
Verify patch installation by checking version against vendor's patched version and testing LINQ query functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual LINQ query patterns
- Unexpected process execution from SCM Server
- Authentication logs showing suspicious client access
Network Indicators:
- Anomalous outbound connections from SCM Server
- Unexpected command and control traffic
SIEM Query:
source="SCM_Server" AND (event_type="query_execution" AND query="*" OR process_execution="*")