Hot Note
Affected system
BI/BO platform
CVSS
9.6
Component
BI-RA-CR-VW
Patch Day
2020-12
Released on
2020/12/08
SAP Note
2989075
Workaround
No
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Advisory

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 2989075 was released on 08.12.2020 and deals with "[CVE-2020-26831] Missing XML Validation in SAP BusinessObjects Business Intelligence Platform (Crystal Report)" within BI/BO platform. We advice you to follow the instructions, to resolve external entity tunneling (xxe) with a hot news potential for exploitation in component BI-RA-CR-VW.

According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as part of maintenance.

Risk specification

Crystal Report does not sufficiently validate uploaded XML entities allowing an authenticated user with basic privileges to inject some arbitrary XML entities leading to internal file disclosure, internal directories disclosure, Server Side Request Forgery (SSRF), and also denial-of-service (DoS)

Solution

Arbitrary values provided within input parameters are now ignored.

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

 

 

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