From MS SQL Server 2016 Instance Security Technical Implementation Guide
Part of SRG-APP-000501-DB-000336
Associated with: CCI-000172
The removal of security objects from the database/DBMS would seriously degrade a system's information assurance posture. If such an event occurs, it must be logged.
Determine if an audit is configured and started by executing the following query. SELECT name AS 'Audit Name', status_desc AS 'Audit Status', audit_file_path AS 'Current Audit File' FROM sys.dm_server_audit_status If no records are returned, this is a finding. Execute the following query to verify the "SCHEMA_OBJECT_CHANGE_GROUP" is included in the server audit specification. SELECT a.name AS 'AuditName', s.name AS 'SpecName', d.audit_action_name AS 'ActionName', d.audited_result AS 'Result' FROM sys.server_audit_specifications s JOIN sys.server_audits a ON s.audit_guid = a.audit_guid JOIN sys.server_audit_specification_details d ON s.server_specification_id = d.server_specification_id WHERE a.is_state_enabled = 1 AND d.audit_action_name = 'SCHEMA_OBJECT_CHANGE_GROUP' If the "SCHEMA_OBJECT_CHANGE_GROUP" is not returned in an active audit, this is a finding.
Add the "SCHEMA_OBJECT_CHANGE_GROUP" to the server audit specification USE [master]; GO ALTER SERVER AUDIT SPECIFICATION STIG_AUDIT_SERVER_SPECIFICATION WITH (STATE = OFF); GO ALTER SERVER AUDIT SPECIFICATION STIG_AUDIT_SERVER_SPECIFICATION ADD (SCHEMA_OBJECT_CHANGE_GROUP); GO ALTER SERVER AUDIT SPECIFICATION STIG_AUDIT_SERVER_SPECIFICATION WITH (STATE = ON); GO See the supplemental script "SQL 2016 Audit.sql" for complete script.
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