SAP NetWeaver System Landscape Directory, LM-CORE 7.10, 7.20, 7.30, 7.31, 7.40, does not perform any authentication checks for functionalities that require user identity.
https://launchpad.support.sap.com/#/notes/2565622
https://blogs.sap.com/2018/02/13/sap-security-patch-day-february-2018/