Server Side Request Forgery (SSRF) vulnerability in SAP Central Management Console, BI Launchpad and Fiori BI Launchpad, 4.10, from 4.20, from 4.30, could allow a malicious user to use common techniques to determine which ports are in use on the backend server.
https://launchpad.support.sap.com/#/notes/2493727
https://blogs.sap.com/2018/02/13/sap-security-patch-day-february-2018/