Advisory

A note with CVSS 8.3 for component MDM-FN-MDS-SEC was released by SAP on 13.04.2021. The correction/advisory 3017908 was described with "[CVE-2021-21482] Information Disclosure in SAP NetWeaver Master Data Management" and affects the system type Java.

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

The vulnerability addressed is information disclosure within Java.

Information disclosure is when an application fails to properly protect sensitive and confidential information from parties that are not supposed to have access to the subject matter in normal circumstances.
Carefully review every information disclosure vulnerablity in regards to disclosure obligations post-GDPR for ‘Personal data’ under the Data Protection Act 2018.

Risk specification

When security guidelines and recommendations concerning administrative accounts of an SAP NetWeaver Master Data Management installation have not been thoroughly reviewed, a malicious user with access to the MDM Server subnet might try to find the password using a brute-force method.

Solution

SAP NetWeaver Master Data Management has been updated so that the configuration of locking has been enabled for all account roles. Although an alternative solution exists, it is advisable to apply the correction! This is the workaround, which was suggested by the SAP security experts: "In order to minimize the risk of an attack being successful, a strong password policy for accounts of all types has to be enforced. Change all passwords of accounts with Admin role in accordance to the parameters described in this note.".

Affected System

SAP Netweaver Application Server Java is part of the SAP NetWeaver Application Platform. It provides the complete infrastructure for deploying and running Java applications.

The AS Java Home: SAP Netweaver Application Server Java wiki
A dedicated SAP NetWeaver 7.40 Application Server for Java Security Guide exists.

The advisory is valid for

Releated advisories

Disclaimer

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Notifications

Affected system Java

CVSS 8.3

Component MDM-FN-MDS-SEC

Patch Day2021-04

Released on2021/04/13

SAP Note 3017908

Workaround Yes

Advisory

Risk specification

Solution

Affected System

Disclaimer

_{Affected system}
Java

_CVSS
8.3

_Component
MDM-FN-MDS-SEC

_{Patch Day}
2021-04

_{Released
on}
2021/04/13

_{SAP Note}
3017908

_Workaround
Yes