SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for
vulnerabilities reported by external researchers and their customers every second Tuesday of the month.
SAP Note 2522794
was released on
09.08.2022 and deals with
"Missing Authorization check in Portugal Digital Signature" within ABAP.
We advice you to follow the instructions, to resolve
missing authorization check
medium potential for exploitation
in component XX-CSC-PT-LO.
According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as monthly patch process.
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 specificationDigital Signature Portugal does not perform necessary authorization checks for an authenticated user, resulting in an escalation of privileges.
Digital Signature Portugal has been updated to include an authorization check for the object F_BKPF_BUK.
The advisory 2522794 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 100 27
- S4CORE 101 38
- S4CORE 102 39
- SAP_APPL 600 12
- SAP_APPL 602 12
- SAP_APPL 603 12
- SAP_APPL 604 12
- SAP_APPL 605 13
- SAP_APPL 606 11
- SAP_APPL 616 9
- SAP_APPL 617 10
- SAP_APPL 618 13
- 10.0 [Multiple CVE IDs] Missing Authentication Check in SAP Solution Manager (JAVA stack)
- 10.0 [CVE-2021-37535] Missing Authorization check in SAP NetWeaver Application Server for Java (JMS Connector Service)
- 9.6 [CVE-2020-6320] Improper Access Control in SAP Marketing (Mobile Channel Servlet)
- 9.6 [CVE-2021-21481] Missing Authorization Check in SAP NetWeaver AS JAVA (MigrationService)
- 9.6 [CVE-2021-40501] Missing Authorization check in ABAP Platform Kernel