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 2943844
was released on
13.10.2020 and deals with
"[CVE-2020-6308] Server-Side Request Forgery vulnerability in SAP BusinessObjects Business Intelligence Platform (Web Services)" within BI/BO platform.
We advice you to follow the instructions, to resolve
cross-site request forgery (xsrf)
medium potential for exploitation
in component BI-DEV-JAV.
According to SAP Security Advisory team a workaround exists. It is advisable to implement the correction as part of maintenance.
Risk specificationThis note has been re-released with updated 'Reason and Prerequisites' information. SAP BusinessObjects Business Intelligence Platform (Web Services) allows an unauthenticated attacker to inject arbitrary values as CMS parameters to perform lookups on the internal network which is otherwise not accessible externally.
The allowlist of authorized CMS is configured in the field allowed.cms in the dsws.properties file. Alternativly, the consulting team has proposed the following: "The allowlist of authorized CMS must be configured by an Administrator before trying any login attempt. For this, the Administrator will have to edit the dsws.properties file and configure the field allowed.cms. It should contain a comma separated list of all the authorized URLs, for example: allowed.cms=host:6400,host2:6400,host3:15678.". 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 5.3 score.
SAP BusinessObjects Business Intelligence suite is an analytics platform allowing SAP customers to make better decisions based on their business data. SAP BI is a module meant for producing business insights and expands its power in combination with HANA DB and also exists as BW/4 HANA. Due to processing sensitive business data, the Data security is of utmost importance.
The advisory is valid for
- 9.9 [CVE-2021-33690] Server Side Request Forgery vulnerability in SAP NetWeaver Development Infrastructure (Component Build Service)
- 7.6 [CVE-2020-6275] Server Side Request Forgery vulnerability in SAP NetWeaver AS ABAP
- 5.5 Cross-Site Request Forgery (CSRF) vulnerability in Cash Management
- 5.4 Cross-Site Request Forgery (CSRF) vulnerability in S/4HANA Finance for advanced payment management
- 5.0 This note has been re-released without changes. - Cross-Site Request Forgery (CSRF) vulnerability in SAP Web Dynpro ABAP