Advisory
On 13.08.2024 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within ABAP.
SAP Note 3474590 addresses "[CVE-2024-42376] Multiple Missing Authorization Check vulnerabilities in SAP Shared Service Framework" to prevent missing authorization check 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
SAP Shared Service Framework allows authenticated attacker to gain access to data otherwise restricted and to call a remote-enabled function allowing them to insert value entries into a non-sensitive table resulting in escalation of privileges.Solution
When calling from CRM to ERP to validate / display on ERP data via RFC, an additional authority check is done on the object.
Affected System
The advisory 3474590 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
- 6.3 [CVE-2024-33005] Missing Authorization check in SAP NetWeaver Application Server (ABAP and Java),SAP Web Dispatcher and SAP Content Server.
- 4.3 [CVE-2024-41734] Missing Authorization check in SAP NetWeaver Application Server ABAP and ABAP Platform
- 4.3 [CVE-2024-39591] Missing Authorization check in SAP Document Builder
- 4.3 [CVE-2024-42373] Missing Authorization Check in SAP Student Life Cycle Management (SLcM)