Ensure SQL servers have Azure Active Directory admin configured

Error: SQL servers do not have Azure Active Directory admin configured

Bridgecrew Policy ID: BC_AZR_GENERAL_74
Checkov Check ID: CKV2_AZURE_7
Severity: LOW

SQL servers do not have Azure Active Directory admin configured

Description

Use Azure Active Directory Authentication for authentication with SQL Database.

Azure Active Directory authentication is a mechanism to connect to Microsoft Azure SQL Database and SQL Data Warehouse by using identities in Azure Active Directory (Azure AD). With Azure AD authentication, identities of database users and other Microsoft services can be managed in one central location. Central ID management provides a single place to manage database users and simplifies permission management.

  • It provides an alternative to SQL Server authentication.
  • Helps stop the proliferation of user identities across database servers.
  • Allows password rotation in a single place.
  • Customers can manage database permissions using external (AAD) groups.
  • It can eliminate storing passwords by enabling integrated Windows authentication and other forms of authentication supported by Azure Active Directory.
  • Azure AD authentication uses contained database users to authenticate identities at the database level.
  • Azure AD supports token-based authentication for applications connecting to SQL Database.
  • Azure AD authentication supports ADFS (domain federation) or native user/password authentication for a local Azure Active Directory without domain synchronization.
  • Azure AD supports connections from SQL Server Management Studio that use Active Directory Universal Authentication, which includes Multi-Factor Authentication (MFA). MFA includes strong authentication with a range of easy verification options — phone call, text message, smart cards with pin, or mobile app notification.

Fix - Buildtime

Terraform

  • Resource: azurerm_resource_group, azurerm_sql_server, azurerm_sql_active_directory_administrator
  • Argument: server_name (of azurerm_sql_active_directory_administrator)
data "azurerm_client_config" "current" {}

resource "azurerm_resource_group" "example" {
  name     = "example-resources"
  location = "West Europe"
}

resource "azurerm_sql_server" "sql_server_good" {
  name                         = "mysqlserver"
  resource_group_name          = azurerm_resource_group.example.name
  location                     = azurerm_resource_group.example.location
  version                      = "12.0"
  administrator_login          = "4dm1n157r470r"
  administrator_login_password = "4-v3ry-53cr37-p455w0rd"
}


resource "azurerm_sql_active_directory_administrator" "example" {
+ server_name         = azurerm_sql_server.sql_server_good.name
  resource_group_name = azurerm_resource_group.example.name
  login               = "sqladmin"
  tenant_id           = data.azurerm_client_config.current.tenant_id
  object_id           = data.azurerm_client_config.current.object_id
}

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