SQL Server Predictable Admin Account Name

• Query id: 2ab6de9a-0136-415c-be92-79d2e4fd750f
• Query name: SQL Server Predictable Admin Account Name
• Platform: Terraform
• Severity: Medium
• Category: Best Practices
• URL: Github

Description

Azure SQL Server's Admin account login must avoid using names like 'Admin', that are too predictable, which means the attribute 'administrator_login' must be set to a name that is not easy to predict
Documentation

Code samples

Code samples with security vulnerabilities

Postitive test num. 1 - tf file

#this is a problematic code where the query should report a result(s)
resource "azurerm_resource_group" "positive1" {
  name     = "database-rg"
  location = "West US"
}

resource "azurerm_storage_account" "positive2" {
  name                     = "examplesa"
  resource_group_name      = azurerm_resource_group.example.name
  location                 = azurerm_resource_group.example.location
  account_tier             = "Standard"
  account_replication_type = "LRS"
}

resource "azurerm_sql_server" "positive3" {
  name                         = "mssqlserver"
  resource_group_name          = azurerm_resource_group.example.name
  location                     = azurerm_resource_group.example.location
  version                      = "12.0"
  administrator_login          = ""
  administrator_login_password = "thisIsDog11"

  extended_auditing_policy {
    storage_endpoint                        = azurerm_storage_account.example.primary_blob_endpoint
    storage_account_access_key              = azurerm_storage_account.example.primary_access_key
    storage_account_access_key_is_secondary = true
    retention_in_days                       = 6
  }

  tags = {
    environment = "production"
  }
}

resource "azurerm_sql_server" "positive4" {
  name                         = "mssqlserver"
  resource_group_name          = azurerm_resource_group.example.name
  location                     = azurerm_resource_group.example.location
  version                      = "12.0"
  administrator_login          = "Admin"
  administrator_login_password = "thisIsDog11"

  extended_auditing_policy {
    storage_endpoint                        = azurerm_storage_account.example.primary_blob_endpoint
    storage_account_access_key              = azurerm_storage_account.example.primary_access_key
    storage_account_access_key_is_secondary = true
    retention_in_days                       = 6
  }

  tags = {
    environment = "production"
  }
}

Code samples without security vulnerabilities

Negative test num. 1 - tf file

#this code is a correct code for which the query should not find any result
resource "azurerm_resource_group" "negative1" {
  name     = "database-rg"
  location = "West US"
}

resource "azurerm_storage_account" "negative2" {
  name                     = "examplesa"
  resource_group_name      = azurerm_resource_group.example.name
  location                 = azurerm_resource_group.example.location
  account_tier             = "Standard"
  account_replication_type = "LRS"
}

resource "azurerm_sql_server" "negative3" {
  name                         = "mssqlserver"
  resource_group_name          = azurerm_resource_group.example.name
  location                     = azurerm_resource_group.example.location
  version                      = "12.0"
  administrator_login          = "UnpredictableAdminLogin"
  administrator_login_password = "thisIsDog11"

  extended_auditing_policy {
    storage_endpoint                        = azurerm_storage_account.example.primary_blob_endpoint
    storage_account_access_key              = azurerm_storage_account.example.primary_access_key
    storage_account_access_key_is_secondary = true
    retention_in_days                       = 6
  }

  tags = {
    environment = "production"
  }
}