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AC-04(28) Linear Filter Pipelines

NIST SP 800-53 (controls) 5.2.0 against 5.2.0
All changes in this version
unchanged AC part of AC-4

Title

Linear Filter Pipelines

Control

When transferring information between different security domains, implement a linear content filter pipeline that is enforced with discretionary and mandatory access controls.

Discussion

Content filtering is the process of inspecting information as it traverses a cross-domain solution and determines if the information meets a predefined policy. The use of linear content filter pipelines ensures that filter processes are non-bypassable and always invoked. In general, the use of parallel filtering architectures for content filtering of a single data type introduces bypass and non-invocation issues.

Assessment objective

AC-04(28) when transferring information between security domains, a linear content filter pipeline is implemented that is enforced with discretionary and mandatory access controls.

STIG rules that implement this control 0

No followed STIG rule cites a CCI indexed to this control (CCI list 2026-07-14).