CVE-2021-38163

CVE-2021-38163 is a critical-severity (CVSS 9.9) vulnerability in SAP NetWeaver. CISA added it to the Known Exploited Vulnerabilities catalog on June 9, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 30, 2022. CISA does not currently list it as used in ransomware campaigns. SAP has 14 vulnerabilities in the KEV catalog, 3 of them linked to ransomware.

SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker authenticated as a non-administrative user can upload a malicious file over a network and trigger its processing, which is capable of running operating system commands with the privilege of the Java Server process. These commands can be used to read or modify any information on the server or shut the server down making it unavailable.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

• https://launchpad.support.sap.com/#/notes/3084487
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405
• https://launchpad.support.sap.com/#/notes/3084487
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38163