Recently, SAP has fixed a very critical security flaw in its manufacturing software, this critical-bug fix was a spring of 18 security patches that were released by SAP.
These patches were addressing all new vulnerabilities and modernizing all the previously released patches. But, there are two most critical fixes, that are recently published as part of the security update.
These security updates combined the vulnerability in SAP’s Manufacturing Integration and Intelligence (MII) application for synchronizing each manufacturing operation. Not only this but there is one in SAP’s NetWeaver AS Java software heap.
SAP Manufacturing Intelligence and Integrations (SAP MII)
The Onapsis Research Labs contributed themselves to fixing this patch day’s most significant vulnerability. SAP MII is an SAP NetWeaver AS Java-based platform which allows real-time composition that monitors and contributes extensive data analysis tools.
CVE-2021-21480 is quite sophisticated, in this the SAP MII, that enables users to formulate dashboards and conserve them as JSP through the SSCE. In this CVE the attacker can block a request to the server, and insert all malicious JSP code in the request and forward it to the server.
The malicious content in the dashboard gets administered, once the dashboard is launched by the users possessing at least SAP_XMII_Developer role.
This dashboard leads to remote code execution in the server and allows all privilege escalation. This malicious JSP code can accommodate all certain OS commands.
These commands help the attacker to address all kinds of sensitive files in the server, and it adjusts the files or even destroys all the contents in the server, that’s why it endangers the confidentiality, integrity, and accessibility of the server that hosts the SAP MII application.
SAP NetWeaver AS Java Flaw
SAP NetWeaver AS Java, is quite a serious flaw in its versions 7.10, 7.11, 7.30, 7.31, 7.40, and 7.50, all these are specifically mentioned for MigrationService.
However, its components got affected in this version and thus it lacks authorization checks. This flaw (CVE-2021-21481) achieved a score of 9.6 on the CVSS scale, which makes it critical severity.
SAP NetWeaver AS Java is used privately for migrating all kinds of applications that arise between major releases for the AS Java engine.
More Vulnerabilities Fixed
SAP has already fixed reverse tabnabbing vulnerabilities for another two UI technologies/frameworks. However, it does the same for HTMLB for Java, the main difference is the patches that are available for other UI technologies.
These two patches require an additional fix for SAP NetWeaver AS Java, presented with SAP Security. Along with 18 new and updated SAP Security Notes, now SAP’s March Patch Day is somewhat under the average amount of applications that are released in the first two months of 2021.