The advisory for SAPGUI / Frontend adresses a "Cross-Site Scripting (XSS) vulnerabilities in modified jQuery bundled with SAPUI5". SAP Note 2941170 was released on 11.08.2020 and should be implemented during part of maintenance. The implementation demands a downtime. Component CA-UI5-COR has a medium risk of exploitation, according to the manufacturers security and response team.
Following the SAP Security Advisory team, a workaround does exist.
Cross-site scripting (XSS) is the name of a class of security vulnerabilities that can occur in web-based applications. XSS combines
SAP UI5 and OpenUI5 do not sufficiently encode user controlled inputs, resulting in an Cross-Site Scripting (XSS) vulnerability which would allow an unauthenticated adversary to access sensitive information such as session credentials.
The vulnerability was fixed by removing the vulnerable code, to prevent a successful XSS attack. And the good news are: a workaround exists, too! This was suggested by the SAP security experts: "Cross-site scripting/request forgery filter engine on IDS/IPS/firewall systems. "
Applications of the SAP GUI Family are SAP's universal clients for accessing SAP functionality in SAP applications. The GUI functions like a browser. It gets information from the SAP server like what, where, when and how, to display contents in its window. SAP GUI comes in the following three different flavors and exists in multiple versions:
- SAP GUI for Windows
- SAP GUI for the Java Environment
- SAP GUI for HTML
Usage of an outdated SAP GUI application can pose security risk to SAP applications.
- SAP frequently updates the
following note, to share information about maintenance strategy and deadline for the GUI components:
147519 - Maintenance strategy / deadlines for SAP GUI for Windows / SAP GUI for Java
- Another good source for information on product version and releases is the so called Product Availability Matrix
The advisory is valid for
- SAP_UI 750 4
- SAP_UI 751 3
- SAP_UI 752 3
- SAP_UI 753 4
- SAP_UI 754 3
- SAP_UI 755
- UISAPUI5_JAVA 7.50
- UI_700 200 2
ABEX takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability in one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.
The advisories found within the ABEX security advisory are generated and continuously enriched by ABEX and affiliated security consultants, partners, customers of the SecurityBridge security suite, SAP support, and advisory groups.
There is no disclosure of zero-day vulnerabilities. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability
In accordance with SAP guidelines, ABEX only discloses issues where the fixing security note has been released at least three months ago. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.