I have a list of STIGs to implement for Elasticsearch, and I'm not sure how to verify the needs of this one. I read about the keystore, which I think helps, but I don't think it covers all the points.
I found setup passwords, but haven't found docs on where the password is stored.
There's also authentication realms, which are configured in elasticsearch.yml under xpack, but again, where are the passwords stored?
Finally, user roles and authorization are useful, but the docs don't mention where this info is stored.
Details of the STIG:
An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform security functions.
Security functions are the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based.
Developers and implementers can increase the assurance in security functions by employing well-defined security policy models; structured, disciplined, and rigorous hardware and software development techniques; and sound system/security engineering principles.
Database Management Systems typically separate security functionality from non-security functionality via separate databases or schemas.
Database objects or code implementing security functionality should not be commingled with objects or code implementing application logic.
When security and non-security functionality are commingled, users who have access to non-security functionality may be able to access security functionality.