Control: 2.15 Ensure 'Access Approval' is 'Enabled'

Description

GCP Access Approval enables you to require your organizations' explicit approval whenever Google support try to access your projects. You can then select users within your organization who can approve these requests through giving them a security role in IAM. All access requests display which Google Employee requested them in an email or Pub/Sub message that you can choose to Approve. This adds an additional control and logging of who in your organization approved/denied these requests.

Controlling access to your information is one of the foundations of information security. Google Employees do have access to your organizations' projects for support reasons. With Access Approval, organizations can then be certain that their information is accessed by only approved Google Personnel.

Remediation

From Console

From the Google Cloud Home, within the project you wish to enable, click on the Navigation hamburger menu in the top left. Hover over the Security Menu. Select Access Approval in the middle of the column that opens.
The status will be displayed here. On this screen, there is an option to click Enroll. If it is greyed out and you see an error bar at the top of the screen that says Access Transparency is not enabled please view the corresponding reference within this section to enable it.
In the second screen click Enroll.

Grant an IAM Group or User the role with permissions to Add Users to be Access Approval message Recipients

From the Google Cloud Home, within the project you wish to enable, click on the Navigation hamburger menu in the top left. Hover over the IAM and Admin. Select IAM in the middle of the column that opens.
Click the blue button the says +ADD at the top of the screen.
In the principals field, select a user or group by typing in their associated email address.
Click on the role field to expand it. In the filter field enter Access Approval Approver and select it.
Click save.

Add a Group or User as an Approver for Access Approval Requests

As a user with the Access Approval Approver permission, within the project where you wish to add an email address to which request will be sent, click on the Navigation hamburger menu in the top left. Hover over the Security Menu. Select Access Approval in the middle of the column that opens.
Click Manage Settings.
Under Set up approval notifications, enter the email address associated with a Google Cloud User or Group you wish to send Access Approval requests to. All future access approvals will be sent as emails to this address.

From Command Line

To update all services in an entire project, run the following command from an account that has permissions as an 'Approver for Access Approval Requests'

gcloud access-approval settings update --project=<project name> --enrolled_services=all --notification_emails='<email recipient for access approval requests>@<domain name>'

Default Value

By default Access Approval and its dependency of Access Transparency are not enabled.

Usage

Run the control in your terminal:

powerpipe control run gcp_compliance.control.cis_v300_2_15

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run gcp_compliance.control.cis_v300_2_15 --share

SQL

This control uses a named query:

select
  self_link as resource,
  case
    when access_approval_settings is not null and access_approval_settings -> 'notificationEmails' is not null then 'ok'
    else 'alarm'
  end as status,
  case
    when access_approval_settings is not null and access_approval_settings -> 'notificationEmails' is not null
      then name || ' access approval is enabled.'
    else name || ' access approval is disabled.'
  end as reason
  , project_id as project
from
  gcp_project;