Least Functionality | Authorized Software Review and Update, v1.0

Defines conformance and assessment criteria for verifying that an organization regularly reviews and updates the list of authorized software programs.
If an assessment step references organization-defined elements (E.g. <organization-defined personnel or roles>, <organization-defined frequency>, etc.), corresponding citations/excerpts must be provided to confirm that the organization has established and documented these values and that they apply as referenced in the conformance criteria.

Similarly, if a "Selection" among multiple options (e.g. [Selection (one or more): as needed; ]) is specified, evidence must be provided to establish that the option(s) implemented by the organization have been defined and documented.

The assessment step shall not be marked as satisfied without this evidence.

Assessment Step

1
Least Functionality | Authorized Software Review and Update (LeastFunctionalityAuthorizedSoftwareReviewandUpdate)
Does the organization review and update the list of authorized software programs [Assignment: organization-defined frequency]?
Artifact
A1
Provide evidence (e.g. organizational policies, procedures, compliance/assessment reports, etc.) that support the assessor's response to this assessment step.
Parameter
Review Frequencyrequired
NUMBER : Provide the frequency (in months) at which the organization reviews its list of authorized software programs
If conformance criteria reference organization-defined elements (e.g. <organization-defined personnel or roles>, <organization-defined frequency>, etc.), these values must be defined and documented by the organization.

Similarly, if the criteria specify a "Selection" among multiple options (e.g. [Selection (one or more): as needed; ]), the option(s) implemented by the organization must also be defined and documented.

Conformance Criteria (1)

C1
The organization reviews and updates the list of authorized software programs [Assignment: organization-defined frequency].
Citation
SP800-53R4
Appendix F, CM-7 (5) [c]