A note with CVSS 7.3 for component EHS-SAF was released by SAP on 10.03.2020. The correction/advisory 1966029 was described with "Directory traversal in SAP Environment Health and Safety" and affects the system type ABAP.
A workaround does not exist, according to SAP Security Advisory team. It is advisable to implement the correction as monthly patch process.
The vulnerability addressed is directory traversal (read/write) within ABAP.
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 specificationSAP Environment Health and Safety allows an unauthenticated attacker to exploit insufficient validation of path information provided by users, resulting in an directory traversal vulnerability which allows to read and write files from the server.
The affected programm has been updated to apply a strengthend path validation
The advisory 1966029 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
- EA-APPL 600 5
- EA-APPL 602 5
- EA-APPL 603 5
- EA-APPL 604 5
- EA-APPL 605 5
- EA-APPL 606 5
- EA-APPL 616 5
- EA-APPL 617 6