CVE-2025-23186
📋 TL;DR
This vulnerability in SAP NetWeaver Application Server ABAP allows authenticated attackers to craft RFC requests that expose credentials for remote services. Attackers can then use these credentials to fully compromise the remote service, affecting all organizations running vulnerable SAP NetWeaver ABAP systems.
💻 Affected Systems
- SAP NetWeaver Application Server ABAP
⚠️ 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 remote services, leading to full loss of confidentiality, integrity, and availability across connected systems.
Likely Case
Credential theft enabling lateral movement and privilege escalation within SAP environments.
If Mitigated
Limited impact if proper network segmentation and access controls prevent credential reuse.
🎯 Exploit Status
Requires authenticated access and knowledge of RFC functionality; exploitation depends on specific conditions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply SAP Security Note 3554667
Vendor Advisory: https://me.sap.com/notes/3554667
Restart Required: Yes
Instructions:
1. Download SAP Note 3554667 from SAP Support Portal.
2. Apply the note to affected SAP NetWeaver ABAP systems.
3. Restart the SAP system to activate changes.
4. Verify the patch is applied correctly.
🔧 Temporary Workarounds
Restrict RFC Destinations
allLimit RFC destinations to trusted systems only and review existing configurations.
Use transaction SM59 to review and restrict RFC destinations.
Enforce Least Privilege
allRestrict user permissions to minimize who can execute RFC calls.
Use transaction SU01 to review and adjust user authorizations for RFC.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate SAP systems from critical services.
- Monitor and audit RFC traffic for unusual patterns or unauthorized access attempts.
🔍 How to Verify
Check if Vulnerable:
Check if SAP Note 3554667 is applied using transaction SNOTE or by reviewing system patch status.Check Version:
Use transaction SM51 or system command 'disp+work' to check SAP kernel and patch levels.Verify Fix Applied:
Verify the note is implemented and test RFC functionality to ensure no credential exposure occurs.📡 Detection & Monitoring
Log Indicators:
- Unusual RFC calls to restricted destinations in SAP security audit logs.
- Failed authorization attempts for RFC functions.
Network Indicators:
- Anomalous network traffic from SAP systems to unexpected destinations.
- RFC protocol traffic patterns indicating credential harvesting attempts.
SIEM Query:
Example: source="sap_audit_log" AND event_type="RFC_CALL" AND destination="restricted_*"