MA-4(4)—Authentication And Separation Of Maintenance Sessions
>Control Description
Protect nonlocal maintenance sessions by:
a. Employing ⚙organization-defined authenticators that are replay resistant; and
b. Separating the maintenance sessions from other network sessions with the system by either:
1. Physically separated communications paths; or
2. Logically separated communications paths.
>Cross-Framework Mappings
>Supplemental Guidance
Communications paths can be logically separated using encryption.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of MA-4(4) (Authentication And Separation Of Maintenance Sessions)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring MA-4(4)?
- •How frequently is the MA-4(4) policy reviewed and updated, and what triggers policy changes?
- •What governance structure ensures MA-4(4) requirements are consistently applied across all systems?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce MA-4(4) requirements.
- •What automated tools, systems, or technologies are deployed to implement MA-4(4)?
- •How is MA-4(4) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce MA-4(4) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of MA-4(4)?
- •What audit logs, records, reports, or monitoring data validate MA-4(4) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of MA-4(4) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate MA-4(4) compliance?
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