ma-5-3-citizenship-requirements-for-classified-systems

name	MA-5(3)_citizenship-requirements-for-classified-systems
description	Verify that personnel performing maintenance and diagnostic activities on a system processing, storing, or transmitting classified information are ...
category	configuration
version	5.2.0
author	cyberstrike-official
tags	["nist","sp800-53","rev5","ma-5-3","ma","enhancement"]
tech_stack	["linux","windows"]
cwe_ids	[]
chains_with	["PS-3"]
prerequisites	["MA-5"]
severity_boost	{"PS-3":"Chain with PS-3 for comprehensive security coverage"}

MA-5(3) Citizenship Requirements for Classified Systems

Enhancement of: MA-5

High-Level Description

Family: Maintenance (MA) Framework: NIST SP 800-53 Rev 5

Personnel who conduct maintenance on organizational systems may be exposed to classified information during the course of their maintenance activities. If access to classified information on organizational systems is restricted to U.S. citizens, the same restriction is applied to personnel performing maintenance on those systems.

What to Check

• Verify MA-5(3) Citizenship Requirements for Classified Systems is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for MA-5(3)
• Verify enhancement builds upon base control MA-5

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for MA-5(3) 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

Verify that personnel performing maintenance and diagnostic activities on a system processing, storing, or transmitting classified information are U.S. citizens.

Implementation Guidance

Personnel who conduct maintenance on organizational systems may be exposed to classified information during the course of their maintenance activities. If access to classified information on organizational systems is restricted to U.S. citizens, the same restriction is applied to personnel performing maintenance on those systems.

Risk Assessment