ac-3-2-dual-authorization

name	AC-3(2)_dual-authorization
description	Enforce dual authorization for [organization-defined].
category	authorization
version	5.2.0
author	cyberstrike-official
tags	["nist","sp800-53","rev5","ac-3-2","ac","enhancement"]
tech_stack	["aws","azure","gcp","linux","windows"]
cwe_ids	["CWE-284"]
chains_with	["CP-9","MP-6"]
prerequisites	["AC-3"]
severity_boost	{"CP-9":"Chain with CP-9 for comprehensive security coverage","MP-6":"Chain with MP-6 for comprehensive security coverage"}

AC-3(2) Dual Authorization

Enhancement of: AC-3

High-Level Description

Family: Access Control (AC) Framework: NIST SP 800-53 Rev 5

Dual authorization, also known as two-person control, reduces risk related to insider threats. Dual authorization mechanisms require the approval of two authorized individuals to execute. To reduce the risk of collusion, organizations consider rotating dual authorization duties. Organizations consider the risk associated with implementing dual authorization mechanisms when immediate responses are necessary to ensure public and environmental safety.

What to Check

• Verify AC-3(2) Dual Authorization is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for AC-3(2)
• Verify enhancement builds upon base control AC-3

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AC-3(2) 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

Enforce dual authorization for [organization-defined].

Implementation Guidance

Dual authorization, also known as two-person control, reduces risk related to insider threats. Dual authorization mechanisms require the approval of two authorized individuals to execute. To reduce the risk of collusion, organizations consider rotating dual authorization duties. Organizations consider the risk associated with implementing dual authorization mechanisms when immediate responses are necessary to ensure public and environmental safety.