Authentication using non xpack logstash

Forgive what is im sure a dumb question but if I using straight logstash, without xpack or other commercial things just straight ELK, what authentications are available, if any?
Its there any roles or control to indices or data present.
Ive used Graylog for some time and am looking to switch but I need to be able to compare apples to apples in this regard,
Its hard to figure from some of the docs whats available in which, or I just haven't found it yet.
any clarification appreciated.

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