Azure Function app does not use the latest version of TLS encryption

Description

The Transport Layer Security (TLS) protocol secures transmission of data between servers and web browsers, over the Internet, using standard encryption technology. To follow security best practices and the latest PCI compliance standards, enable the latest version of TLS protocol (i.e. TLS 1.2) for all your Azure Function apps.

Fix - Runtime

Fix - Buildtime

Terraform

Resource: azurerm_function_app
Argument: site_config.min_tls_version

resource "azurerm_function_app" "pass2" {
  name                       = "test-azure-functions"
  location                   = azurerm_resource_group.example.location
  resource_group_name        = azurerm_resource_group.example.name
  app_service_plan_id        = azurerm_app_service_plan.example.id
  storage_account_name       = azurerm_storage_account.example.name
  storage_account_access_key = azurerm_storage_account.example.primary_access_key
  https_only                 = false

  site_config {
    dotnet_framework_version = "v4.0"
    scm_type                 = "LocalGit"
    min_tls_version          = 1.2
    ftps_state               = "AllAllowed"
    http2_enabled            = false
    cors {
      allowed_origins = ["*"]
    }
  }
}