| Review the system documentation to determine whether it is required to track categories of information, such as classification or sensitivity level. If it is not, this is not applicable (NA). |
If neither SQL Server Audit nor SQL Server Trace is in use for audit purposes, this is a finding.
If SQL Server Trace is in use for audit purposes, review the Trace settings, and the triggers on the tables holding categorized information, to determine whether all UPDATE actions on these tables are traced, including failed attempts. If not, this is a finding.
Check to see that all required event classes are being audited. From the query prompt:
SELECT * FROM sys.traces;
All currently defined traces for the SQL server instance will be listed. If no traces are returned, this is a finding.
Determine the trace(s) being used for the auditing requirement.
In the following, replace # with a trace ID being used for the auditing requirements.
From the query prompt:
SELECT DISTINCT(eventid) FROM sys.fn_trace_geteventinfo(#);
The following required event IDs should be among those listed; if not, this is a finding:
82-91 -- User-defined Event (at least one of these, matching the triggers; 90 is used in the supplied script)
162 -- User error message
If SQL Server Audit is in use, proceed as follows.
The basic SQL Server Audit configuration provided in the supplemental file Audit.sql uses the broad, server-level audit action group SCHEMA_OBJECT_ACCESS_GROUP for this purpose. SQL Server Audit's flexibility makes other techniques possible. If an alternative technique is in use and demonstrated effective, this is not a finding.
Determine the name(s) of the server audit specification(s) in use.
To look at audits and audit specifications, in Management Studio's object explorer, expand
>> Security >> Audits
>> Security >> Server Audit Specifications.
>> Databases >> >> Security >> Database Audit Specifications.
Alternatively, review the contents of the system views with "audit" in their names.
Run the following to verify that all SELECT, INSERT, UPDATE, and DELETE actions on tables and views are being audited:
SELECT * FROM sys.server_audit_specification_details WHERE server_specification_id =
(SELECT server_specification_id FROM sys.server_audit_specifications WHERE [name] = '')
AND audit_action_name = 'SCHEMA_OBJECT_ACCESS_GROUP';
If no row is returned, this is a finding.
If the audited_result column is not "SUCCESS" or "SUCCESS AND FAILURE", this is a finding.