cis-azure-foundations-2-1-9

name	cis-azure-foundations-2.1.9
description	Ensure 'No Public IP' is set to 'Enabled'
category	cis-azure-foundations
version	5.0.0
author	cyberstrike-official
tags	["cis","azure","databricks","analytics"]
cis_id	2.1.9
cis_benchmark	CIS Microsoft Azure Foundations Benchmark v5.0.0
tech_stack	["azure"]
cwe_ids	[]
chains_with	["cis-azure-foundations-2.1.1","cis-azure-foundations-2.1.10","cis-azure-foundations-2.1.11"]
prerequisites	[]
severity_boost	{}

Ensure 'No Public IP' is set to 'Enabled'

Description

Enable secure cluster connectivity (also known as no public IP) on Azure Databricks workspaces to ensure that clusters do not have public IP addresses and communicate with the control plane over a secure connection.

Rationale

Enabling secure cluster connectivity limits exposure to the public internet, improving security and reducing the risk of external attacks.

Impact

Enabling secure cluster connectivity requires careful network configuration. Before secure cluster connectivity can be enabled, Azure Databricks workspaces must be deployed in a customer-managed virtual network (VNet injection) -- refer to the recommendation Ensure that Azure Databricks is deployed in a customer-managed virtual network (VNet).

Audit Procedure

Audit from Azure Portal

1. Go to Azure Databricks.
2. Click the name of a workspace.
3. Under Settings, click Networking.
4. Under Network access, ensure that Deploy Azure Databricks workspace with Secure Cluster Connectivity (No Public IP) is set to Enabled.
5. Repeat steps 1-4 for each workspace.

Audit from Azure CLI

Run the following command to list workspaces:

az databricks workspace list

For each workspace, run the following command to get the enableNoPublicIp setting:

az databricks workspace show --resource-group <resource-group> --name <workspace> --query parameters.enableNoPublicIp.value

Ensure that true is returned.

Audit from PowerShell

Run the following command to list workspaces:

Get-AzDatabricksWorkspace

Run the following command to get the workspace in a resource group with a given name:

$workspace = Get-AzDatabricksWorkspace -ResourceGroupName <resource-group> -Name <workspace>

Run the following command to get the EnableNoPublicIp setting:

$workspace.EnableNoPublicIP

Ensure that True is returned. Repeat for each workspace.

Audit from Azure Policy

• Policy ID: - 'Azure Databricks Clusters should disable public IP'