NIST 800-171 3.4.6Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities
Overview
This control requires organizations to employ the principle of least functionality by configuring organizational systems to provide only essential capabilities. It is part of the Configuration Management family and is required for CMMC Level 2 certification. Defense contractors handling CUI must implement this control to protect sensitive information and demonstrate compliance during assessments.
Assessment Objectives
- 1Determine if the organization has defined policies and procedures to employ the principle of least functionality by configuring organizational systems to provide only essential capabilities
- 2Determine if the organization implements mechanisms to employ the principle of least functionality by configuring organizational systems to provide only essential capabilities
- 3Verify that the implementation is consistent with organizational policies and NIST 800-171 requirements
Implementation Guidance
Implement this control by establishing documented policies and procedures, deploying appropriate technical controls, and maintaining evidence of ongoing compliance. Regularly review and test the implementation to ensure effectiveness and address any gaps identified during assessments.
Common Audit Gaps
Related DFARS Clauses
Frequently Asked Questions
What is NIST 800-171 control 3.4.6?
NIST 800-171 control 3.4.6 requires organizations to employ the principle of least functionality by configuring organizational systems to provide only essential capabilities. This control is part of the Configuration Management family and is required for CMMC Level 2 certification.
How do you implement NIST 800-171 3.4.6?
To implement control 3.4.6, establish documented policies, deploy technical controls to employ the principle of least functionality by configuring organizational system, and maintain evidence of compliance. Regular testing and monitoring are essential.
What evidence is needed for NIST 800-171 3.4.6?
Evidence for control 3.4.6 typically includes written policies and procedures, system configuration documentation, audit logs showing enforcement, and records of periodic reviews. Assessors will look for both documentation and technical implementation.
Related Controls
3.4.5|Define, document, approve, and enforce physical and logical access restrictions associated with changes to organizational systems
Configuration Management
3.4.7|Restrict, disable, or prevent the use of nonessential programs, functions, ports, protocols, and services
Configuration Management
3.11.1|Periodically assess the risk to organizational operations (including mission, functions, image, or reputation), organizational assets, and individuals, resulting from the operation of organizational systems and the associated processing, storage, or transmission of CUI
Risk Assessment
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