Advisory
On 08.04.2025 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within ABAP.
SAP Note 3581961 addresses "[CVE-2025-27429] Code Injection Vulnerability in SAP S/4HANA (Private Cloud or On-Premise)" to prevent code injection with a hot news risk for exploitation.
A workaround does 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 Support Packages & Patches information. In SAP S/4HANA (Private Edition and on-premise), an authenticated attacker can exploit an exposed RFC function module to inject arbitrary ABAP code, leading to complete system compromise and unauthorized actions.Solution
The patch eliminates code injection risks and prevents arbitrary code execution within the application. Circumstances exist that prevent the timely installation of a patch provided by the manufacturer. In such cases, you may consider applying the suggested workaround as a temporary or compensating mitigation: "Remote access can be blocked via transaction UCONCOCKPIT. Local access must also be secured in transaction SE37 using authorization object S_DEVELOP (activity 16, object type FUGR).".
Affected System
The advisory 3581961 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
- S4CORE 102 62
- S4CORE 103 66
- S4CORE 104 61
- S4CORE 105 49
- S4CORE 106 40
- S4CORE 107 35
- S4CORE 108 29
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