pr-ac-05-prac-05

name	PR.AC-05_prac-05
description	Network integrity is protected (e.g., network segregation, network segmentation)
category	authorization
version	2.0
author	cyberstrike-official
tags	["nist","csf","v2.0","pr-ac-05","pr","subcategory"]
tech_stack	["aws","azure","gcp","linux","windows"]
cwe_ids	["CWE-284"]
chains_with	[]
prerequisites	["Identity Management, Authentication and Access Control (PR.AC)"]
severity_boost	{}

PR.AC-05 PR.AC-05

Subcategory of: Identity Management, Authentication and Access Control (PR.AC)

High-Level Description

Function: PROTECT (PR) Framework: NIST Cybersecurity Framework v2.0

Network integrity is protected (e.g., network segregation, network segmentation)

What to Check

• Verify PR.AC-05 PR.AC-05 outcome is achieved
• Review documentation and evidence for PR.AC-05
• Assess organizational maturity for PROTECT function
• Map to SP 800-53 controls that satisfy PR.AC-05

How to Test

Step 1: Identify Current Profile

Determine the organization's current and target CSF profile tier for PR.AC-05.

Step 2: Assess Outcome Achievement

# Review organizational policies and procedures
# Check for evidence that PR.AC-05 outcome is met
# Interview stakeholders responsible for PROTECT

Step 3: Map to Technical Controls

Identify which SP 800-53 controls implement this CSF outcome and verify their operating effectiveness.

Tools

Tool	Purpose	Usage
cloud-audit-mcp	Assess cloud security posture	cloud_audit_* tools
Manual Review	Policy and procedure review	Interviews and documentation

Remediation Guide

Achieve the PR.AC-05 PR.AC-05 outcome:

Network integrity is protected (e.g., network segregation, network segmentation)

Risk Assessment

Finding	Severity	Impact
PR.AC-05 PR.AC-05 outcome not achieved	High	PROTECT Function Gap

CWE Categories

CWE ID	Title
CWE-284	Improper Access Control

References

• NIST CSF v2.0