IA-3(3)_dynamic-address-allocation

IA-3(3) Dynamic Address Allocation

Enhancement of: IA-3

High-Level Description

Family: Identification and Authentication (IA) Framework: NIST SP 800-53 Rev 5

The Dynamic Host Configuration Protocol (DHCP) is an example of a means by which clients can dynamically receive network address assignments.

What to Check

• Verify IA-3(3) Dynamic Address Allocation is documented in SSP
• Validate all 2 control requirements are implemented
• Confirm control is operating effectively
• Review evidence of continuous monitoring for IA-3(3)
• Verify enhancement builds upon base control IA-3

How to Test

Step 1: Review Documentation

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

Remediation Guide

Control Statement

Where addresses are allocated dynamically, standardize dynamic address allocation lease information and the lease duration assigned to devices in accordance with [organization-defined] ; and Audit lease information when assigned to a device.

Implementation Guidance

The Dynamic Host Configuration Protocol (DHCP) is an example of a means by which clients can dynamically receive network address assignments.

Risk Assessment

CWE Categories

References

• NIST SP 800-53 Rev 5 - IA-3(3)
• 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 (AU-2) reviewed