Virtual Network with DDoS Protection Plan disabled

• Query id: b4cc2c52-34a6-4b43-b57c-4bdeb4514a5a
• Query name: Virtual Network with DDoS Protection Plan disabled
• Platform: Terraform
• Severity: Medium
• Category: Availability
• URL: Github

Description

Virtual Network should have DDoS Protection Plan enabled
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - tf file

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

resource "azurerm_network_security_group" "example" {
  name                = "acceptanceTestSecurityGroup1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
}

resource "azurerm_network_ddos_protection_plan" "example" {
  name                = "ddospplan1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
}

resource "azurerm_virtual_network" "positive1" {
  name                = "virtualNetwork1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  address_space       = ["10.0.0.0/16"]
  dns_servers         = ["10.0.0.4", "10.0.0.5"]

  subnet {
    name           = "subnet1"
    address_prefix = "10.0.1.0/24"
  }

  subnet {
    name           = "subnet2"
    address_prefix = "10.0.2.0/24"
  }

  subnet {
    name           = "subnet3"
    address_prefix = "10.0.3.0/24"
    security_group = azurerm_network_security_group.example.id
  }

  tags = {
    environment = "Production"
  }
}

Positive test num. 2 - tf file

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

resource "azurerm_network_security_group" "example" {
  name                = "acceptanceTestSecurityGroup1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
}

resource "azurerm_network_ddos_protection_plan" "example" {
  name                = "ddospplan1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
}

resource "azurerm_virtual_network" "positive1" {
  name                = "virtualNetwork1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  address_space       = ["10.0.0.0/16"]
  dns_servers         = ["10.0.0.4", "10.0.0.5"]

  ddos_protection_plan {
    id     = azurerm_network_ddos_protection_plan.example.id
    enable = false
  }

  subnet {
    name           = "subnet1"
    address_prefix = "10.0.1.0/24"
  }

  subnet {
    name           = "subnet2"
    address_prefix = "10.0.2.0/24"
  }

  subnet {
    name           = "subnet3"
    address_prefix = "10.0.3.0/24"
    security_group = azurerm_network_security_group.example.id
  }

  tags = {
    environment = "Production"
  }
}

Code samples without security vulnerabilities

Negative test num. 1 - tf file

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

resource "azurerm_network_security_group" "example" {
  name                = "acceptanceTestSecurityGroup1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
}

resource "azurerm_network_ddos_protection_plan" "example" {
  name                = "ddospplan1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
}

resource "azurerm_virtual_network" "negative1" {
  name                = "virtualNetwork1"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  address_space       = ["10.0.0.0/16"]
  dns_servers         = ["10.0.0.4", "10.0.0.5"]

  ddos_protection_plan {
    id     = azurerm_network_ddos_protection_plan.example.id
    enable = true
  }

  subnet {
    name           = "subnet1"
    address_prefix = "10.0.1.0/24"
  }

  subnet {
    name           = "subnet2"
    address_prefix = "10.0.2.0/24"
  }

  subnet {
    name           = "subnet3"
    address_prefix = "10.0.3.0/24"
    security_group = azurerm_network_security_group.example.id
  }

  tags = {
    environment = "Production"
  }
}