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 3283283
was released on
10.01.2023 and deals with
"[CVE-2023-0013] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform" within ABAP.
We advice you to follow the instructions, to resolve
cross-site scripting (xss)
medium potential for exploitation
in component BC-ABA-LA.
According to SAP Security Advisory team a workaround exists. 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
vulnerabilities before they are implemented in production.
Cross-site scripting (XSS) is the name of a class of security vulnerabilities that can occur in web-based
applications. XSS combines
affected web application.
Risk specificationThis note has been re-released with updated ‘Support Packages & Patches’ information. The ABAP Keyword Documentation of SAP NetWeaver Application Server for ABAP and ABAP Platform does not sufficiently encode user controlled inputs, resulting in Cross-Site Scripting (XSS) vulnerability.
The URL for the web version of the ABAP keyword documentation is not sufficiently protected against illegal path extensions. Alternativly, the consulting team has proposed the following: "Cross-site scripting/request forgery filter engine on IDS/IPS/firewall systems. Disabling the ABAP keyword documentation in the ABAP ICF.". The suggestion may be considered, as a workaround or compensating mitigation. We recommend installing/applying the correction wherever possible and as soon as possible. Base your decision on whether or not to apply the patch on your companies and systems risk perspective and consider the provided CVSS 6.1 score.
The advisory 3283283 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 702 4
- SAP_BASIS 731 58
- SAP_BASIS 740 62
- SAP_BASIS 750-757 21
- 8.3 [CVE-2021-33702] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Enterprise Portal
- 8.3 [CVE-2021-33703] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Enterprise Portal
- 8.0 [CVE-2022-41266] Cross-Site Scripting (XSS) vulnerability in SAP Commerce
- 6.9 [CVE-2021-33691] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Development Infrastructure (Notification Service)
- 6.5 [CVE-2022-35297] Stored Cross-Site Scripting (XSS) vulnerability in SAP Enable Now