AC-4(29)_filter-orchestration-engines
DevOps & SecurityAC-4(29)_filter-orchestration-engines is an Agent Skill for devops & security published in the CyberStrikeus/CyberStrike repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.
When transferring information between different security domains, employ content filter orchestration engines to ensure that: Content filtering mechan
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AC-4(29) Filter Orchestration Engines
Enhancement of: AC-4
High-Level Description
Family: Access Control (AC) Framework: NIST SP 800-53 Rev 5
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.
What to Check
- Verify AC-4(29) Filter Orchestration Engines is documented in SSP
- Validate all 2 control requirements are implemented
- Confirm control is operating effectively
- Review evidence of continuous monitoring for AC-4(29)
- 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(29) 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
| Tool | Purpose | Usage |
|---|---|---|
| cloud-audit-mcp | Check IAM policies and access controls | cloud_audit_iam_policies |
| hackbrowser-mcp | Test web application access controls | browser_auth_test |
Remediation Guide
Control Statement
When transferring information between different security domains, employ content filter orchestration engines to ensure that: Content filtering mechanisms successfully complete execution without errors; and Content filtering actions occur in the correct order and comply with [organization-defined].
Implementation 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.
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| AC-4(29) Filter Orchestration Engines not implemented | High | Access Control |
| AC-4(29) partially implemented | Medium | Incomplete Access Control |
CWE Categories
| CWE ID | Title |
|---|---|
| CWE-284 | Improper Access Control |
References
- NIST SP 800-53 Rev 5 - AC-4(29)
- 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