Connect with us

Hi, what are you looking for?



SAP Patches Critical Flaws in MII, NetWeaver Products

SAP’s March 2021 Security Patch Day updates include 9 new security notes, including two for critical vulnerabilities affecting the company’s NetWeaver Application Server (AS) and Manufacturing Integration and Intelligence (MII) products.

SAP’s March 2021 Security Patch Day updates include 9 new security notes, including two for critical vulnerabilities affecting the company’s NetWeaver Application Server (AS) and Manufacturing Integration and Intelligence (MII) products.

This month’s set of patches also includes 4 updates to previously released Patch Day security notes, including updates for two notes rated Hot News (CVSS score 10), which address a missing authorization check in Solution Manager (CVE-2020-6207) and deliver the latest patches for the Chromium browser in Business Client.

The most severe of the newly released security notes addresses a code injection vulnerability in SAP MII. Tracked as CVE-2021-21480, the vulnerability features a CVSS score of 9.9.

Based on NetWeaver AS Java, SAP MII provides monitoring and data analysis capabilities, capturing data from production machinery and providing real-time information on performance and efficiency.

The critical vulnerability was identified in the Self-Service Composition Environment (SSCE) component, which allows the creation of dashboards (via drag-and-drop) that can be saved as JSP files. The flaw allows an attacker to inject malicious JSP code in a request to the server, which would then be executed when the infected dashboard is opened.

Exploitation of the bug would allow an attacker to access SAP databases and tamper with records, move laterally to other servers, inject malware, and modify network configurations to potentially compromise internal networks.

The second Hot News security note that SAP released on Tuesday addresses a missing authorization check in the Migration Service of NetWeaver AS Java (CVE-2021-21481, CVSS score 9.6).

Advertisement. Scroll to continue reading.

Used internally to migrate applications between J2EE Engine releases, the service could be abused to gain administrative privileges and potentially fully compromise the vulnerable system. The fix for this vulnerability requires a system restart, Onapsis, a firm that specializes in securing SAP applications, explains.

This month, SAP released a single high-severity security note, to address a possible authentication bypass in HANA LDAP scenarios (CVE-2021-21484, CVSS score 7.7). Successful exploitation requires that the LDAP directory server enables unauthenticated bind and that SAP HANA has been configured to automatically create users and allow access based on LDAP authentication.

All of the remaining security notes included in the March 2021 Security Patch Day are rated medium severity. They address missing authorization checks, an insecure deserialization issue, a reverse TabNabbing vulnerability, improper input validation, and a server-side request forgery bug.

Related: Critical Vulnerability Patched in SAP Commerce Product

Related: Scanning Activity Detected After Release of Exploit for Critical SAP SolMan Flaw

Related: SAP Patches Serious Code Injection, DoS Vulnerabilities

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Join security experts as they discuss ZTNA’s untapped potential to both reduce cyber risk and empower the business.


Join Microsoft and Finite State for a webinar that will introduce a new strategy for securing the software supply chain.


Expert Insights

Related Content


Less than a week after announcing that it would suspended service indefinitely due to a conflict with an (at the time) unnamed security researcher...

Data Breaches

OpenAI has confirmed a ChatGPT data breach on the same day a security firm reported seeing the use of a component affected by an...

Risk Management

The supply chain threat is directly linked to attack surface management, but the supply chain must be known and understood before it can be...

IoT Security

A group of seven security researchers have discovered numerous vulnerabilities in vehicles from 16 car makers, including bugs that allowed them to control car...


Patch Tuesday: Microsoft warns vulnerability (CVE-2023-23397) could lead to exploitation before an email is viewed in the Preview Pane.


The latest Chrome update brings patches for eight vulnerabilities, including seven reported by external researchers.


A researcher at IOActive discovered that home security systems from SimpliSafe are plagued by a vulnerability that allows tech savvy burglars to remotely disable...


Patch Tuesday: Microsoft calls attention to a series of zero-day remote code execution attacks hitting its Office productivity suite.