ac-2-6-dynamic-privilege-management

name	AC-2(6)_dynamic-privilege-management
description	Implement [organization-defined].
category	authorization
version	5.2.0
author	cyberstrike-official
tags	["nist","sp800-53","rev5","ac-2-6","ac","enhancement"]
tech_stack	["aws","azure","gcp","linux","windows"]
cwe_ids	["CWE-284"]
chains_with	["AC-16"]
prerequisites	["AC-2"]
severity_boost	{"AC-16":"Chain with AC-16 for comprehensive security coverage"}

AC-2(6) Dynamic Privilege Management

Enhancement of: AC-2

High-Level Description

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

In contrast to access control approaches that employ static accounts and predefined user privileges, dynamic access control approaches rely on runtime access control decisions facilitated by dynamic privilege management, such as attribute-based access control. While user identities remain relatively constant over time, user privileges typically change more frequently based on ongoing mission or business requirements and the operational needs of organizations. An example of dynamic privilege management is the immediate revocation of privileges from users as opposed to requiring that users terminate and restart their sessions to reflect changes in privileges. Dynamic privilege management can also include mechanisms that change user privileges based on dynamic rules as opposed to editing specific user profiles. Examples include automatic adjustments of user privileges if they are operating out of their normal work times, if their job function or assignment changes, or if systems are under duress or in emergency situations. Dynamic privilege management includes the effects of privilege changes, for example, when there are changes to encryption keys used for communications.

What to Check

• Verify AC-2(6) Dynamic Privilege Management is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for AC-2(6)
• Verify enhancement builds upon base control AC-2

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AC-2(6) 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