Snapshot should restrict network access policy

High Azure General snapshot-network-deny

Applies to

Microsoft.Compute/snapshots

What CGPulse checks

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

How to fix it

Set network access policy to AllowPrivate or DenyAll to restrict snapshot data access. In Azure Portal: Snapshot > Networking > set Network access policy. See: https://learn.microsoft.com/en-us/azure/virtual-machines/disks-enable-private-links-for-import-export-portal

Careful: Restricting network access may block existing export/copy operations. Ensure private endpoints are configured if using AllowPrivate

CLI

az snapshot update --ids "{id}" --network-access-policy DenyAll

Terraform

resource "azurerm_snapshot" "{name}" {
  name                  = "{name}"
  resource_group_name   = "{rg}"
  location              = var.location
  create_option         = "Copy"
  source_uri            = "<source-disk-id>"
  network_access_policy = "DenyAll"
}

Compliance frameworks

Cloud Security: Azure Foundations

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