Contained database authentication should be disabled

Explanation

Users with ALTER permissions on users can grant access to a contained database without the knowledge of an administrator

Possible Impact

Access can be granted without knowledge of the database administrator

Suggested Resolution

Disable contained database authentication

Insecure Example

The following example will fail the google-sql-no-contained-db-auth check.

resource "google_sql_database_instance" "db" {
	name             = "db"
	database_version = "SQLSERVER_2017_STANDARD"
	region           = "us-central1"
}
			

Secure Example

The following example will pass the google-sql-no-contained-db-auth check.

resource "google_sql_database_instance" "db" {
	name             = "db"
	database_version = "SQLSERVER_2017_STANDARD"
	region           = "us-central1"
	settings {
	    database_flags {
		    name  = "contained database authentication"
		    value = "off"
		}
	}
}
			

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