ABAP BASIS function modules INST_CREATE_R3_RFC_DEST, INST_CREATE_TCPIP_RFCDEST, and INST_CREATE_TCPIP_RFC_DEST in SAP BASIS (fixed in versions 7.0 to 7.02, 7.10 to 7.30, 7.31, 7.40, 7.50 to 7.53) do not perform necessary authorization checks in all circumstances for an authenticated user, resulting in escalation of privileges.