CVE-2025-27436
📋 TL;DR
This vulnerability in SAP S/4HANA's Manage Bank Statements function allows authenticated users to delete attachments from posted bank statements without proper authorization checks. It affects organizations using SAP S/4HANA with the vulnerable component. The impact is limited to data integrity with no confidentiality or availability consequences.
💻 Affected Systems
- SAP S/4HANA
⚠️ 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
Malicious insider or compromised account could delete critical financial document attachments, potentially disrupting audit trails or reconciliation processes.
Likely Case
Accidental or intentional deletion of bank statement attachments by users who shouldn't have this permission, requiring restoration from backups.
If Mitigated
Minimal impact with proper access controls, audit logging, and regular backups in place.
🎯 Exploit Status
Exploitation requires valid user credentials and access to the Manage Bank Statements function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: See SAP Note 3565835 for specific patch/version information
Vendor Advisory: https://me.sap.com/notes/3565835
Restart Required: Yes
Instructions:
1. Review SAP Note 3565835 for your specific SAP S/4HANA version. 2. Apply the security patch via SAP Solution Manager or manual implementation. 3. Restart affected SAP systems. 4. Verify the fix by testing the Manage Bank Statements functionality.
🔧 Temporary Workarounds
Restrict Access to Manage Bank Statements
allTemporarily remove or restrict authorization for users who don't require access to the Manage Bank Statements function.
Use SAP transaction SU01 to modify user authorizations
Use transaction PFCG to adjust role assignments
Enable Enhanced Audit Logging
allIncrease logging for bank statement attachment operations to detect unauthorized deletion attempts.
Configure audit logging via transaction SM19
Set up audit policy for FI document changes
🧯 If You Can't Patch
- Implement strict role-based access control (RBAC) to limit who can access Manage Bank Statements
- Enable comprehensive audit logging for all bank statement attachment operations and monitor regularly
🔍 How to Verify
Check if Vulnerable:
Test if authenticated users without proper authorization can delete bank statement attachments via the Manage Bank Statements function.Check Version:
Use SAP transaction SM51 or check system information in SAP GUIVerify Fix Applied:
After patching, verify that only authorized users can delete bank statement attachments and unauthorized attempts are properly blocked.📡 Detection & Monitoring
Log Indicators:
- Unauthorized deletion attempts in security audit logs
- Bank statement attachment deletion by unexpected users
Network Indicators:
- HTTP requests to bank statement attachment deletion endpoints from unauthorized users
SIEM Query:
source="sap_audit_log" AND (event="attachment_deletion" OR event="bank_statement_modification") AND user NOT IN authorized_users_list