App Service must disable FTP or require FTPS only

High Azure General webapp-ftps-only-2

Applies to

Microsoft.Web/sites

What CGPulse checks

A resource passes this rule when siteConfig.ftpsState must be one of ["Disabled","FtpsOnly"]. Anything else is reported as a finding with the evaluated property value attached as evidence.

How to fix it

Set FTP state to FTPS Only or Disabled to encrypt deployment credentials in transit. In Azure Portal: App Service > Configuration > General settings > FTP state > FTPS Only. See: https://learn.microsoft.com/en-us/azure/app-service/deploy-ftp

CLI

az webapp config set --ids "{id}" --ftps-state FtpsOnly

Terraform

resource "azurerm_linux_web_app" "{name}" {
  site_config {
    ftps_state = "FtpsOnly"
  }
}

Compliance frameworks

Critical Security Controls v84.8
NIST 800-53: Cloud Security ControlsSC-8
PCI DSS v4.02.2.7
SOC 2: Trust ServicesCC6.6

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