katello-installer normally displays what the default credentials are, since the password is randomized it is still showing the old default of "changeme" instead of what the random password is.
Created from redmine issue http://projects.theforeman.org/issues/6458
Upstream bug assigned to email@example.com
Verified in Satellite-6.0.3-RHEL-6-20140723.0
This was delivered with Satellite 6.0 which was released on 10 September 2014.