AC-4(29)—Filter Orchestration Engines
>Control Description
When transferring information between different security domains, employ content filter orchestration engines to ensure that:
a. Content filtering mechanisms successfully complete execution without errors; and
b. Content filtering actions occur in the correct order and comply with ⚙organization-defined policy.
>Supplemental Guidance
Content filtering is the process of inspecting information as it traverses a cross-domain solution and determines if the information meets a predefined security policy. An orchestration engine coordinates the sequencing of activities (manual and automated) in a content filtering process. Errors are defined as either anomalous actions or unexpected termination of the content filter process.
This is not the same as a filter failing content due to non-compliance with policy. Content filter reports are a commonly used mechanism to ensure that expected filtering actions are completed successfully.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of AC-4(29) (Filter Orchestration Engines)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring AC-4(29)?
- •How frequently is the AC-4(29) policy reviewed and updated, and what triggers policy changes?
- •What training or awareness programs ensure personnel understand their responsibilities related to AC-4(29)?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce AC-4(29) requirements.
- •What automated tools, systems, or technologies are deployed to implement AC-4(29)?
- •How is AC-4(29) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce AC-4(29) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of AC-4(29)?
- •What audit logs, records, reports, or monitoring data validate AC-4(29) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of AC-4(29) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate AC-4(29) compliance?
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