PR.AA-05: Access permissions, entitlements, and authorizations are defined in a policy, managed, enforced, and reviewed, and incorporate the principles of least privilege and separation of duties

Description

[csf.tools Note: Subcategories do not have detailed descriptions. However NIST has provided the following implementation examples.]

Implementation Examples

1st: 1st Party Risk

Ex1: Review logical and physical access privileges periodically and whenever someone changes roles or leaves the organization, and promptly rescind privileges that are no longer needed

Ex2: Take attributes of the requester and the requested resource into account for authorization decisions (e.g., geolocation, day/time, requester endpoint's cyber health)

Ex3: Restrict access and privileges to the minimum necessary (e.g., zero trust architecture)

Ex4: Periodically review the privileges associated with critical business functions to confirm proper separation of duties