Solution : https://service.sap.com/sap/support/notes/1579570 (SAP Service marketplace login required)
Key words :
basis release basis support package kernel patch level 620 sapkb62060, relevant basis support packages, rfc trusting abap system, sap basis release 701, sap basis release 620, rfc trusting system, basis release 701, red traffic light, remote function call, abap runtime error
Related Notes :
1590149 | Logon dialog box during HTTP call using destination 'NONE' |
1491645 | Unauthenticated system access via RFC or HTTP |
128447 | Trusted/trusting systems |