Control: 6.25 Ensure that 'Subscription leaving Microsoft Entra tenant' and 'Subscription entering Microsoft Entra tenant' is set to 'Permit no one'

Description

Users who are set as subscription owners are able to make administrative changes to the subscriptions and move them into and out of Microsoft Entra ID.

Permissions to move subscriptions in and out of a Microsoft Entra tenant must only be given to appropriate administrative personnel. A subscription that is moved into a Microsoft Entra tenant may be within a folder to which other users have elevated permissions. This prevents loss of data or unapproved changes of the objects within by potential bad actors.

Remediation

From Azure Portal

From the Azure Portal Home select the portal menu.
Select Subscriptions.
In the Advanced options drop-down menu, select Manage Policies.
Set Subscription leaving Microsoft Entra tenant and Subscription entering Microsoft Entra tenant to Permit no one.
Click Save changes.

Default Value

By default Subscription leaving Microsoft Entra tenant and Subscription entering Microsoft Entra tenant are set to Allow everyone (default).

Usage

Run the control in your terminal:

powerpipe control run azure_compliance.control.cis_v400_6_25

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run azure_compliance.control.cis_v400_6_25 --share

SQL

This control uses a named query:

select
  id as resource,
  'info' as status,
  'Manual verification required.' as reason,
  display_name as subscription
from
  azure_subscription;