PostgreSQL should disable public network access

High Azure General postgres-no-public-access

Applies to

Microsoft.DBforPostgreSQL/flexibleServers

What CGPulse checks

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

How to fix it

Disable public network access to prevent unauthorized internet exposure. In Azure Portal: PostgreSQL Flexible Server > Networking > set Public network access to Disabled. See: https://learn.microsoft.com/en-us/azure/postgresql/flexible-server/concepts-networking

Careful: Disabling public access blocks all connections not using VNet integration or private endpoints

CLI

az postgres flexible-server update --ids "{id}" --public-access Disabled

Terraform

resource "azurerm_postgresql_flexible_server" "{name}" {
  name                          = "{name}"
  resource_group_name           = "{rg}"
  location                      = var.location
  version                       = "16"
  sku_name                      = "B_Standard_B1ms"
  public_network_access_enabled = false
}

Compliance frameworks

Vendor documentation

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