bug: Scuba:Users Have Full Database Access

[shangyanwen]

Describe the problem

Limiting the accessibility of the 'mysql' database will protect the confidentiality, integrity, and availability of the data housed within MySQL. A user that has direct access to mysql.* might view password hashes, change permissions, or alter or destroy information intentionally or unintentionally.

Expected behavior

• For each non-administrative user, use the REVOKE statement to remove privileges as appropriate

How To Reproduce

Environment

Additional context

[shangyanwen]

Modifying parameters from the configuration is not a problem