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V-255368

CAT II (Medium)

Azure SQL Database must generate audit records when successful logons or connections occur.

Rule ID

SV-255368r961824_rule

STIG

Microsoft Azure SQL Database Security Technical Implementation Guide

Version

V2R3

CCIs

CCI-000172

Discussion

For completeness of forensic analysis, it is necessary to track who/what (a user or other principal) logs on to Azure SQL Database.

Check Content

Review Azure SQL Database configuration to verify that audit records are produced when successful logons or connections occur.

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:
SUCCESSFUL_DATABASE_AUTHENTICATION_GROUP

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

Fix Text

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