iDRAC 7 Basic Management severe bug: not possible to get Service Tag

On an unlicensed iDRAC 7 (Basic Management) it is not possible to find out the Service Tag of the server. This information is never shown in the entire (non functioning and useless) web dashboard. Therefore it is impossible to license iDRAC, as this would require the knowledge of the Service Tag.

This needs to be fixed and checked for all other iDRAC versions as well.