Without re-authentication, users may access resources or perform tasks for which they do not have authorization.
When applications provide the capability to change security roles or escalate the functional capability of the application, it is critical the user re-authenticate.
In addition to the re-authentication requirements associated with session locks, the application server security model may require re-authentication of individuals in other situations, including (but not limited to) the following circumstances:
(i) When authenticators change;
(ii) When roles change;
(iii) When security categories of information systems change;
(iv) When the execution of privileged functions occurs;
(v) After a fixed period of time; or
(vi) Periodically.
Within the DoD, the minimum circumstances requiring re-authentication are privilege escalation and role changes. |