Baseline Configuration | Retention Of Previous Configurations, v1.0

Defines conformance and assessment criteria for verifying that an organization retains [Assignment: organization-defined previous versions of baseline configurations of the information system] to support rollback.
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
Baseline Configuration | Retention Of Previous Configurations (BaselineConfigurationRetentionOfPreviousConfigurations)
Does the organization retain [Assignment: organization-defined previous versions of baseline configurations of the information system] to support rollback.?
Artifact
A1
Provide evidence (e.g. organizational policies, procedures, compliance/assessment reports, etc.) that support the assessor's response to this assessment step.
Parameter
Retained Baseline Versionsrequired
NUMBER : Provide the number of baseline configuration versions maintained for the system.
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 retains [Assignment: organization-defined previous versions of baseline configurations of the information system] to support rollback.
Citation
SP800-53R4
Appendix F, CM-2 (3)