Advisory
On 08.07.2025 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within ABAP.
SAP Note 3617131 addresses "[CVE-2025-42981] Open Redirect vulnerability in SAP NetWeaver Application Server ABAP" to prevent open redirect cross-site scripting (xss) with a medium risk for exploitation.
A workaround does not exist, according to SAP Security Advisory team. It is advisable to implement the correction as monthly patch process, the team suggests.
Missing authority checks are still the most common security defect related to authorizations in custom code. Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an explicit check is not coded, all users have access. This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps detect code vulnerabilities before they are implemented in production.
Risk specification
This note has been re-released with updated ‘Manual Activity’ information. This note addresses two vulnerabilities in SAP NetWeaver Application Server ABAP: - The SAP NetWeaver AS ABAP allows an unauthenticated attacker to inject a malicious URL link, resulting in the redirection of the user’s browser and potentially leading to access and/or manipulation of restricted information. - The SAP NetWeaver AS ABAP allows an unauthenticated attacker to inject a malicious publicly available link, resulting in the redirection of the user’s browser and potentially leading to manipulation of session data.Solution
The vulnerable service endpoint and transaction are linked to a test report that does not require exposure through a service endpoint or transaction code. Therefore, both have been removed.
Affected System
The advisory 3617131 describes a problem within an ABAP based systems of a specific version. Affected versions are described below. ABAP software is deployed in various software components and is widely used within the SAP product portfolio.
SAP NetWeaver Application Server (formally known as SAP Web Application Server) is a building block of SAP NetWeaver. It is the foundation for most software products developed by SAP SE. SAP NetWeaver systems exist with Java and/or ABAP stacks. The advisory could be relevant for single and dual-stack ABAP installations.
The advisory is valid for
- SAP_BASIS 700-702 83
- SAP_BASIS 731 96
- SAP_BASIS 740 102
- SAP_BASIS 750-816 7
