Advisory

On 14.04.2020 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within BI/BO platform.

SAP Note 2879132 addresses "[CVE-2020-6226] Cross-Site Scripting (XSS) vulnerabilities in SAP Business Objects Business Intelligence Platform (Web Intelligence HTML interface)" to prevent Cross-Site Scripting (XSS) with a medium risk for exploitation.

A workaround does exist, according to SAP Security Advisory team. It is advisable to implement the correction as part of maintenance, the team suggests.

Cross-site scripting (XSS) is the name of a class of security vulnerabilities that can occur in web-based applications. XSS combines all vulnerabilities that allow an attacker to inject HTML Markup and/or JavaScript into the front end of the affected web application.

XSS attacks can occur whenever the application dynamically creates its HTML/JavaScript/CSS content, which is passed to the user's web browser, and attacker-controlled values are used in this process. If these values are included in the generated code without proper validation and encoding, the attacker is able to include arbitrary coding snippets into the application's front end. The code is then rendered by the victim's web browser and interpreted in the victim's current authentication context.

Risk specification

SAP BusinessObjects Business Intelligence Platform (Web Intelligence HTML interface) does not sufficiently encode user controlled inputs, resulting in Stored Cross-Site Scripting (XSS) vulnerability on different parameters.

Solution

The url parameters are now properly encoded to prevent a successful XSS attack. Circumstances exist that prevent the timely installation of a patch provided by the manufacturer. In such cases, you may consider applying the suggested workaround as a temporary or compensating mitigation: "Cross-site scripting/request forgery filter engine on IDS/IPS/firewall systems. ".

Affected System

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

ENTERPRISE 420 ⁸⁷

Releated advisories

Disclaimer

SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning 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 SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. 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, SecurityBridge only discloses issues where the fixing security note has been released. 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.

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Notifications

Affected system BI/BO platform

CVSS 5.4

Component BI-RA-WBI-FE

Patch Day2020-04

Released on2020/04/14

SAP Note 2879132

Workaround Yes

Advisory

Risk specification

Solution

Affected System

Disclaimer

_{Affected system}
BI/BO platform

_CVSS
5.4

_Component
BI-RA-WBI-FE

_{Patch Day}
2020-04

_{Released
on}
2020/04/14

_{SAP Note}
2879132

_Workaround
Yes