turbot/gcp_compliance

Control: 1.8 Ensure that Separation of duties is enforced while assigning service account related roles to users

Description

It is recommended that the principle of 'Separation of Duties' is enforced while assigning service-account related roles to users

The built-in/predefined IAM role Service Account admin allows the user/identity to create, delete, and manage service account(s). The built-in/predefined IAM role Service Account User allows the user/identity (with adequate privileges on Compute and App Engine) to assign service account(s) to Apps/Compute Instances.

Separation of duties is the concept of ensuring that one individual does not have all necessary permissions to be able to complete a malicious action. In Cloud IAM - service accounts, this could be an action such as using a service account to access resources that user should not normally have access to.

Remediation

No user should have Service Account Admin and Service Account User roles assigned at the same time. Removal of a role should be done based on the business requirements.

From Console

  1. Login to GCP Admin/IAM.
  2. For any member having both Service Account Admin and Service account Userroles granted/assigned as shown in the Role column, remove either role from the member.

Usage

steampipe check gcp_compliance.control.cis_v120_1_8

SQL

This control uses a named query:

iam_user_separation_of_duty_enforced

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