App Service must enforce HTTPS only

High Azure General webapp-app-service-enforce-https

Applies to

Microsoft.Web/sites

What CGPulse checks

A resource passes this rule when httpsOnly must equal true. Anything else is reported as a finding with the evaluated property value attached as evidence.

How to fix it

Enable HTTPS Only to encrypt all traffic and protect user data in transit. In Azure Portal: App Service > TLS/SSL settings > set 'HTTPS Only' to On. See: https://learn.microsoft.com/en-us/azure/app-service/configure-ssl-bindings#enforce-https

CLI

az webapp update --ids "{id}" --set httpsOnly=true

Terraform

resource "azurerm_linux_web_app" "{name}" {
  name                = "{name}"
  resource_group_name = "{rg}"
  location            = var.location
  service_plan_id     = azurerm_service_plan.{name}.id
  https_only          = true
  site_config {}
}

Compliance frameworks

Cloud Security BaselineDP-3
Cloud Security: Azure Foundations
Critical Security Controls v816.11
HIPAA: Health Information Protection164.312(e)(1)
ISO 27001: Information SecurityA.10.1.1
NIST 800-53: Cloud Security ControlsSC-8
SOC 2: Trust ServicesCC6.1
Well-Architected Cloud Review

Vendor documentation

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