MA-4(6)—Nonlocal Maintenance | Cryptographic Protection
IL5
IL6
>Control Description
Implement the following cryptographic mechanisms to protect the integrity and confidentiality of nonlocal maintenance and diagnostic communications: ⚙organization-defined cryptographic mechanisms.
>DoD Impact Level Requirements
No specific parameter values or requirements for this impact level.
>Discussion
Failure to protect nonlocal maintenance and diagnostic communications can result in unauthorized individuals gaining access to organizational information. Unauthorized access during remote maintenance sessions can result in a variety of hostile actions, including malicious code insertion, unauthorized changes to system parameters, and exfiltration of organizational information. Such actions can result in the loss or degradation of mission or business capabilities.
>Related Controls
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of MA-4(6) (Cryptographic Protection)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring MA-4(6)?
- •How frequently is the MA-4(6) policy reviewed and updated, and what triggers policy changes?
- •What governance structure ensures MA-4(6) requirements are consistently applied across all systems?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce MA-4(6) requirements.
- •What automated tools, systems, or technologies are deployed to implement MA-4(6)?
- •How is MA-4(6) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce MA-4(6) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of MA-4(6)?
- •What audit logs, records, reports, or monitoring data validate MA-4(6) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of MA-4(6) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate MA-4(6) compliance?
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