• Requirement

    Implement a policy enforcement mechanism [Selection: physically; logically] between the physical and/or network interfaces for the connecting security domains.

  • Discussion

    For logical policy enforcement mechanisms, organizations avoid creating a logical path between interfaces to prevent the ability to bypass the policy enforcement mechanism. For physical policy enforcement mechanisms, the robustness of physical isolation afforded by the physical implementation of policy enforcement to preclude the presence of logical covert channels penetrating the security domain may be needed. Contact for more information.

More Info

  • Title

    Cross Domain Policy Enforcement
  • Family

    System and Communications Protection
  • NIST 800-53B Baseline(s)

    • Related NIST 800-53 ID


    NIST 800-53A Assessment Guidance

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