If no mechanism is in place for managing password aging, users will have no incentive to update passwords in a timely manner.
Time of Introduction
Architecture and Design
Technical Impact: Gain privileges / assume
As passwords age, the probability that they are compromised
Likelihood of Exploit
A common example is not having a system to terminate old employee
Not having a system for enforcing the changing of passwords every
Phase: Architecture and Design
Ensure that password aging functionality is added to the design of the
system, including an alert previous to the time the password is
considered obsolete, and useful information for the user concerning the
importance of password renewal, and the method.
The recommendation that users change their passwords regularly and do not
reuse passwords is universal among security experts. In order to enforce
this, it is useful to have a mechanism that notifies users when passwords
are considered old and that requests that they replace them with new, strong
passwords. In order for this functionality to be useful, however, it must be
accompanied with documentation which stresses how important this practice is
and which makes the entire process as simple as possible for the user.