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SAP Security Patch Day – December 2020

SAP Patch Day

In December 2020, to be precise on Tuesday the 8th, SAP has released critical (Hot News and High priority) security patches for the products:
– SAP NetWeaver AS JAVA
– SAP BusinessObjects BI Platform
– SAP Business Warehouse, SAP BW4HANA
– SAP AS ABAP(DMIS) (updated)


In this month’s article we want to highlight 3 SAP Security Notes, starting with correction Note #2974774, rates with CVSS 10. The note preserves a missing authentication check in SAP NetWeaver AS JAVA, within the P2P Cluster Communication. It is recommended to update the J2EE ENGINE SERVERCORE to a minimum patch level mentioned in the SAP Note. The AS JAVA Cluster Architecture is used to increase scalability and reliability.


The P2P Cluster Communication component manages to exchange the messages between server nodes in the cluster. The correction is needed to remove a vulnerability accepting arbitrary connections, even connections from outside the cluster. Since the vulnerability is critical, our experts recommend you to update to the appropriate patch level. Note #2974774 also contains a workaround for companies who cannot timely update their AS Java instances.

SAP Cluster Management Architecture
SAP Cluster Mgmt. Architecture

For SAP BW Master Data Management and SAP BW4HANA a coding correction was provided which ensures the exploitation of a code injection vulnerability is eliminated. While for release 730 a hard-coded check was introduced, starting with 740 the function will be decommissioned after installation of Note# 2983367. Please install the patch using transaction SNOTE.

With Note# 2989075 [CVE-2020-26831], SAP provides a correction for SAP BusinessObjects BI Platform particularly for Crystal Reports). Attackers may be able to inject arbitrary XML entities which due to insufficient validation lead to Server Side Request Forgery (SSRF) or denial-of-service (DoS).

Summary by Severity

The December release contains a total of 13 patches for the following severities:

Hot News
2974774 [CVE-2020-26829] Missing Authentication Check In SAP NetWeaver AS JAVA (P2P Cluster Communication)
Product - SAP NetWeaver AS JAVA (P2P Cluster Communication), Versions - 7.11, 7.20, 7.30, 7.31, 7.40, 7.50 
Hot News
2989075 [CVE-2020-26831] Missing XML Validation in SAP BusinessObjects Business Intelligence Platform (Crystal Report)
Product - SAP BusinessObjects BI Platform (Crystal Report), Versions - 4.1, 4.2, 4.3
Hot News
2983367 [CVE-2020-26838] Code Injection vulnerability in SAP Business Warehouse (Master Data Management) and SAP BW4HANA
Product - SAP Business Warehouse, Versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 782
Product - SAP BW4HANA, Versions - 100, 200
Hot News
2973735 Update to security note released on November 2020 Patch Day:[CVE-2020-26808] Code Injection in SAP AS ABAP and S/4 HANA (DMIS)
Product - SAP AS ABAP(DMIS), Versions - 2011_1_620, 2011_1_640, 2011_1_700, 2011_1_710, 2011_1_730, 2011_1_731, 2011_1_752, 2020
Product - SAP S4 HANA(DMIS), Versions - 101, 102, 103, 104, 105
Hot News
2983204 [CVE-2020-26837] Path traversal and Missing Authorization check in SAP Solution Manager 7.2 (User Experience Monitoring)Additional CVE: CVE-2020-26830
Product - SAP Solution Manager (User Experience Monitoring), Version - 7.20
2993132 [CVE-2020-26832] Missing Authorization check in SAP NetWeaver AS ABAP and SAP S4 HANA (SAP Landscape Transformation)
Product - SAP NetWeaver AS ABAP (SAP Landscape Transformation - DMIS), Versions - 2011_1_620, 2011_1_640, 2011_1_700, 2011_1_710, 2011_1_730, 2011_1_731, 2011_1_752, 2020
Product - SAP S4 HANA (SAP Landscape Transformation), Versions - 101, 102, 103, 104, 105 
2974330 [CVE-2020-26826] Unrestricted File Upload vulnerability in SAP NetWeaver Application Server for Java (Process Integration Monitoring)
Product - SAP NetWeaver Application Server for Java, Versions - 7.31, 7.40, 7.50 
2971180 [CVE-2020-26828] Formula Injection in SAP Disclosure Management
Product - SAP Disclosure Management, Version - 10.1
2971163 [CVE-2020-26816] Missing Encryption in SAP NetWeaver AS Java (Key Storage Service)
Product - SAP NetWeaver AS JAVA (Key Storage Service), Versions - 7.10, 7.11, 7.20 ,7.30, 7.31, 7.40, 7.50 
2996479 [CVE-2020-26835] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver AS ABAP
Product - SAP NetWeaver AS ABAP, Versions - 740, 750, 751, 752, 753, 754
2843016 Update to security note released on November 2019 Patch Day:[CVE-2019-0388] Content spoofing vulnerability in UI5 HTTP Handler
Product - SAP UI, Versions - 7.5, 7.51, 7.52, 7.53, 7.54
Product - SAP UI 700, Version - 2.0
2978768 [CVE-2020-26834] Improper authentication in SAP HANA database
Product - SAP HANA Database, Version - 2.0
2938650 [CVE-2020-26836] Open Redirect in SAP Solution Manager (Trace Analysis)
Product - SAP Solution Manager (Trace Analysis), Version - 7.20


Posted by

Christoph Nagy

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