Overview

Security Requirements for 03.05.09 Temporary Passwords

Changing temporary passwords to permanent passwords immediately after system logon ensures that the necessary strength of the authentication mechanism is implemented at the earliest opportunity, reducing the susceptibility to authenticator compromises.

Assessment GuidanceExamine 0/8

How an assessor determines this requirement is met. Source: CMMC Assessment Guide – Level 2, Version 2.13 (NIST SP 800-171 Rev. 2).

Discussion

Users must change their temporary passwords the first time they log in. Temporary passwords often follow a consistent style within an organization and can be more easily guessed than passwords created by the unique user. This approach to temporary passwords should be avoided.

Example One of your duties as a systems administrator is to create accounts for new users. You configure all systems with user accounts to require users to change a temporary password upon initial login to a permanent password [a]. When a user logs on for the first time, they are prompted to create a unique password that meets all of the defined complexity rules.

Assessment Methods

Examine
The process of reviewing, inspecting, observing, studying, or analyzing assessment objects (e.g., policies, procedures, plans, system designs, mechanisms) to facilitate understanding, achieve clarification, or obtain evidence.Example: An assessor reads the access control policy and inspects system configuration settings to confirm they match.

Not all of the evidence listed is required to meet this requirement — check the items your organization has collected.

Interview
The process of holding discussions with individuals or groups within an organization to facilitate understanding, achieve clarification, or identify the location of evidence.Example: An assessor asks a system administrator to describe how user accounts are approved, reviewed, and disabled.
  • Personnel with authenticator management responsibilities
  • Personnel with information security responsibilities
  • System or network administrators
  • System developers
Test
The process of exercising assessment objects (e.g., activities, mechanisms) under specified conditions to compare actual behavior with expected behavior.Example: An assessor attempts to sign in with a disabled account to confirm that access is denied.
  • Mechanisms supporting or implementing password-based authenticator management capability

Potential Assessment Considerations

  • Are temporary passwords only valid to allow a user to perform a password reset [a]?
  • Does the system enforce an immediate password change after logon when a temporary password is issued [a]?

Key References

NIST SP 800-171 Rev. 2 3.5.9

Evidence

  1. 03.05.09.a

    An immediate change to a permanent password is required when a temporary password is used for system logon