SAP PO – User enumeration in AuthorizationList
Impact on Business
Successful attacks impact the confidentiality of the SAP Process Orchestration (PO) system. An unauthenticated attacker can enumerate valid usernames, which allows them to extend their knowledge of the target environment. Furthermore, identifying the presence of specific technical users can reveal whether certain services or applications are configured on the target system.
Vulnerability Details
A SOAP service within the user authorization administration application allows an unauthenticated remote attacker to enumerate SAP usernames. By sending specifically crafted requests to the service and analyzing the discrepancies in the server’s error responses, an attacker can reliably determine whether a given user exists on the target system.
Solution
SAP has released SAP Note 3428847 which provides patched versions of the affected components.
The patches can be downloaded from https://me.sap.com/notes/3428847.
Onapsis strongly recommends SAP customers to download the related security fixes and apply them to the affected components in order to reduce business risks.
Report Timeline
- 01/08/2024: Onapsis reports vulnerability to SAP
- 03/11/2024: SAP issues the patch
References
Advisory Information
- Public Release Date: 09/17/2026
- Security Advisory ID: ONAPSIS-2026-0092
- Researcher(s): Yvan Genuer
Vulnerability Information
- Vendor: SAP
- Affected Components: SAP Process Orchestration (SAP PO), SAP NetWeaver AS Java (Check SAP Note 3428847 for detailed information on affected releases)
- Vulnerability Class: CWE-204: Observable Response Discrepancy
- CVSS v3 score: 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- Risk Level: Medium
- Assigned CVE: CVE-2024-25645
- Vendor patch Information: SAP Security NOTE 3428847
Affected Components Description
The vulnerability affects SAP Process Orchestration (SAP PO) and SAP NetWeaver AS Java systems, specifically observed on version 7.50. Check SAP Note 3428847 for detailed information on all affected releases and support package levels.
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Find all reported vulnerabilities at: https://github.com/Onapsis/vulnerability_advisories
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