Azure SQL Database must generate audit records when security objects are modified.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-255358	ASQL-00-013700	SV-255358r871200_rule		Medium

Description
Changes in the database objects (tables, views, procedures, functions) that record and control permissions, privileges, and roles granted to users and roles must be tracked. Without an audit trail, unauthorized changes to the security subsystem could go undetected. The database could be severely compromised or rendered inoperative.

STIG	Date
Microsoft Azure SQL Database Security Technical Implementation Guide	2022-11-16

Details

Check Text ( C-59031r871198_chk )
Review Azure SQL Database configuration to verify that audit records are produced when security objects are modified. To determine if an audit is configured, execute the following script. Run this TSQL command to determine if SQL Auditing AuditActionGroups are configured: SELECT DISTINCT sd.audit_action_name FROM sys.database_audit_specification_details sd JOIN sys.database_audit_specifications s ON s.database_specification_id = sd.database_specification_id WHERE (name = 'SqlDbAuditing_ServerAuditSpec' /Server Audit/ OR name = 'SqlDbAuditing_AuditSpec') /Database Audit/ AND s.is_state_enabled = 1 ORDER BY sd.audit_action_name If no values exist for AuditActionGroup, this is a finding. Verify the following AuditActionGroup(s) are configured: SCHEMA_OBJECT_CHANGE_GROUP If any listed AuditActionGroups do not exist in the configuration, this is a finding.

Check Text ( C-59031r871198_chk )

Review Azure SQL Database configuration to verify that audit records are produced when security objects are modified.

To determine if an audit is configured, execute the following script.
Run this TSQL command to determine if SQL Auditing AuditActionGroups are configured:
SELECT DISTINCT sd.audit_action_name
FROM sys.database_audit_specification_details sd
JOIN sys.database_audit_specifications s
ON s.database_specification_id = sd.database_specification_id
WHERE (name = 'SqlDbAuditing_ServerAuditSpec' /*Server Audit*/
OR name = 'SqlDbAuditing_AuditSpec') /*Database Audit*/
AND s.is_state_enabled = 1
ORDER BY sd.audit_action_name

If no values exist for AuditActionGroup, this is a finding.

Verify the following AuditActionGroup(s) are configured:
SCHEMA_OBJECT_CHANGE_GROUP

If any listed AuditActionGroups do not exist in the configuration, this is a finding.

Fix Text (F-58975r871199_fix)
Deploy an Azure SQL Database audit. Refer to the supplemental file "AzureSQLDatabaseAudit.txt" PowerShell script. Reference: https://docs.microsoft.com/en-us/powershell/module/az.sql/set-azsqlserveraudit">https://docs.microsoft.com/en-us/powershell/module/az.sql/set-azsqlserveraudit