CVE-2025-42996
📋 TL;DR
SAP MDM Server has a session fixation vulnerability (CWE-590) that allows attackers to hijack existing client sessions without re-authentication. This enables unauthorized execution of functions, potentially accessing or modifying non-sensitive data or consuming server resources. Organizations running vulnerable SAP MDM Server versions are affected.
💻 Affected Systems
- SAP MDM 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
Complete server compromise through session hijacking leading to data manipulation, resource exhaustion causing denial of service, and potential privilege escalation within the MDM environment.
Likely Case
Unauthorized access to non-sensitive information, execution of limited functions without proper authorization, and potential performance degradation from resource consumption attacks.
If Mitigated
Limited impact with proper session management controls, network segmentation, and monitoring in place, potentially only allowing access to low-privilege functions.
🎯 Exploit Status
Exploitation requires access to existing client sessions. No public exploit code is currently available, but the vulnerability is documented in SAP security notes.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check SAP Note 3610006 for specific patch versions
Vendor Advisory: https://me.sap.com/notes/3610006
Restart Required: Yes
Instructions:
1. Review SAP Note 3610006 for specific patch details. 2. Apply the recommended SAP security patch for your MDM Server version. 3. Restart the SAP MDM Server service. 4. Verify the patch application through version checking.
🔧 Temporary Workarounds
Session Timeout Reduction
allReduce session timeout values to limit the window for session hijacking attacks
Configure in SAP MDM Server administration console: Set session timeout to minimum practical value
Network Segmentation
allRestrict access to SAP MDM Server to trusted networks only
Implement firewall rules to allow only authorized IP addresses/subnets to access MDM Server ports
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the MDM Server
- Enable detailed session logging and monitor for unusual session activity patterns
🔍 How to Verify
Check if Vulnerable:
Check your SAP MDM Server version against the affected versions listed in SAP Note 3610006Check Version:
Check SAP MDM Server administration console or system logs for version informationVerify Fix Applied:
Verify that the patch version from SAP Note 3610006 is installed and active📡 Detection & Monitoring
Log Indicators:
- Multiple session creations from same client in short time
- Session ID reuse from different IP addresses
- Unauthorized function execution attempts
Network Indicators:
- Unusual session establishment patterns
- Multiple connection attempts to session endpoints
SIEM Query:
source="sap_mdm" AND (event_type="session_hijack" OR multiple_sessions_from_same_user)