AC-4(32)_process-requirements-for-information-transfer

AC-4(32) Process Requirements for Information Transfer

Enhancement of: AC-4

High-Level Description

Family: Access Control (AC) Framework: NIST SP 800-53 Rev 5

The processes transferring information between filter pipelines have minimum complexity and functionality to provide assurance that the processes operate correctly.

What to Check

• Verify AC-4(32) Process Requirements for Information Transfer is documented in SSP
• Validate all 4 control requirements are implemented
• Confirm control is operating effectively
• Review evidence of continuous monitoring for AC-4(32)
• Verify enhancement builds upon base control AC-4

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AC-4(32) implementation details. Verify the organization has documented how this control is satisfied.

Step 2: Validate Implementation

# For cloud environments, use cloud-audit-mcp tools
# For on-premises, review system configurations directly

# Example: Check if account management policies exist
grep -r "account.management\|access.control" /etc/security/ 2>/dev/null

Step 3: Test Operating Effectiveness

Verify the control is actively functioning, not just documented. Check logs, configurations, and operational evidence.

Tools

Remediation Guide

Control Statement

When transferring information between different security domains, the process that transfers information between filter pipelines: Does not filter message content; Validates filtering metadata; Ensures the content associated with the filtering metadata has successfully completed filtering; and Transfers the content to the destination filter pipeline.

Implementation Guidance

The processes transferring information between filter pipelines have minimum complexity and functionality to provide assurance that the processes operate correctly.

Risk Assessment

CWE Categories

References

• NIST SP 800-53 Rev 5 - AC-4(32)
• NIST SP 800-53A Rev 5 (Assessment Procedures)
• NIST SP 800-53 Rev 5 Full Catalog

Checklist

• Control documented in SSP
• Implementation evidence collected
• Operating effectiveness validated
• Continuous monitoring in place
• Related controls (none) reviewed