| name | SA-4(1)_functional-properties-of-controls |
| description | Require the developer of the system, system component, or system service to provide a description of the functional properties of the controls to be i |
| category | configuration |
| version | 5.2.0 |
| author | cyberstrike-official |
| tags | ["nist","sp800-53","rev5","sa-4-1","sa","enhancement"] |
| tech_stack | ["any"] |
| cwe_ids | ["CWE-16"] |
| chains_with | [] |
| prerequisites | ["SA-4"] |
| severity_boost | {} |
SA-4(1) Functional Properties of Controls
Enhancement of: SA-4
High-Level Description
Family: System and Services Acquisition (SA)
Framework: NIST SP 800-53 Rev 5
Functional properties of security and privacy controls describe the functionality (i.e., security or privacy capability, functions, or mechanisms) visible at the interfaces of the controls and specifically exclude functionality and data structures internal to the operation of the controls.
What to Check
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for SA-4(1) 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 |
|---|
| Manual Review | Documentation and interview-based | N/A |
Remediation Guide
Control Statement
Require the developer of the system, system component, or system service to provide a description of the functional properties of the controls to be implemented.
Implementation Guidance
Functional properties of security and privacy controls describe the functionality (i.e., security or privacy capability, functions, or mechanisms) visible at the interfaces of the controls and specifically exclude functionality and data structures internal to the operation of the controls.
Risk Assessment
