CVE-2025-42912
📋 TL;DR
CVE-2025-42912 is an authorization bypass vulnerability in SAP HCM My Timesheet Fiori 2.0 that allows authenticated users to perform unauthorized actions, potentially escalating privileges. This affects organizations using the vulnerable SAP Fiori application for human capital management timesheet functions. The vulnerability impacts application integrity while confidentiality and availability remain unaffected.
💻 Affected Systems
- SAP HCM My Timesheet Fiori 2.0
⚠️ 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
An authenticated attacker could gain administrative privileges within the HCM system, allowing manipulation of timesheet data, approval workflows, or access to sensitive HR information beyond their authorized scope.
Likely Case
Authenticated users exploiting this vulnerability to modify their own or others' timesheet data, bypass approval workflows, or access restricted timesheet-related functions.
If Mitigated
With proper network segmentation, least privilege access controls, and monitoring, impact would be limited to minor timesheet data manipulation within isolated HCM functions.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of the vulnerable endpoints; no public exploit code is available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: As specified in SAP Note 3635587
Vendor Advisory: https://me.sap.com/notes/3635587
Restart Required: No
Instructions:
1. Review SAP Note 3635587 for specific patch details. 2. Apply the SAP Security Patch Day updates for your system. 3. Verify the patch installation through transaction SPAM/SAINT. 4. Test the application functionality post-patch.
🔧 Temporary Workarounds
Temporary Access Restriction
allRestrict access to the vulnerable Fiori application to only essential users until patching can be completed.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the HCM system from other critical systems.
- Enforce principle of least privilege and regularly audit user permissions and access logs for suspicious activities.
🔍 How to Verify
Check if Vulnerable:
Check your SAP system version against the affected versions listed in SAP Note 3635587 and verify if the HCM My Timesheet Fiori 2.0 application is installed.Check Version:
Transaction SE38: Execute report RSVERSION to check SAP_BASIS and component versions.Verify Fix Applied:
After applying SAP Note 3635587, verify the patch is installed via transaction SPAM/SAINT and test authorization controls in the Fiori application.📡 Detection & Monitoring
Log Indicators:
- Unusual authorization attempts in security audit logs (SM19/SM20)
- Multiple failed authorization checks followed by successful access to restricted functions
- User activities outside normal timesheet submission patterns
Network Indicators:
- Unusual API calls to HCM timesheet endpoints from non-standard users
- Increased traffic to specific Fiori application services
SIEM Query:
source="sap_audit_logs" AND (event_type="authorization_failure" OR event_type="privilege_escalation") AND application="HCM_MyTimesheet_Fiori"