Azure SQL Database must generate audit records when unsuccessful logons or connection attempts occur.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-255369	SRG-APP-000503-DB-000351	ASQL-00-014800	SV-255369r961824_rule	2024-09-04	2

Description
For completeness of forensic analysis, it is necessary to track failed attempts to log on to Azure SQL Database. While positive identification may not be possible in a case of failed authentication, as much information as possible about the incident must be captured.

ℹ️ Check
Review Azure SQL Database configuration to verify that audit records are produced when unsuccessful logons or connection attempts 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: FAILED_DATABASE_AUTHENTICATION_GROUP If any listed AuditActionGroups do not exist in the configuration, this is a finding.

ℹ️ Check

Review Azure SQL Database configuration to verify that audit records are produced when unsuccessful logons or connection attempts 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: FAILED_DATABASE_AUTHENTICATION_GROUP If any listed AuditActionGroups do not exist in the configuration, this is a finding.

✔️ 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