ia-12-5-address-confirmation

name	IA-12(5)_address-confirmation
description	Require that a [organization-defined] be delivered through an out-of-band channel to verify the users address (physical or digital) of record.
category	authentication
version	5.2.0
author	cyberstrike-official
tags	["nist","sp800-53","rev5","ia-12-5","ia","enhancement"]
tech_stack	["aws","azure","active-directory","linux","windows"]
cwe_ids	["CWE-287"]
chains_with	["IA-12"]
prerequisites	["IA-12"]
severity_boost	{"IA-12":"Chain with IA-12 for comprehensive security coverage"}

IA-12(5) Address Confirmation

Enhancement of: IA-12

High-Level Description

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

To make it more difficult for adversaries to pose as legitimate users during the identity proofing process, organizations can use out-of-band methods to ensure that the individual associated with an address of record is the same individual that participated in the registration. Confirmation can take the form of a temporary enrollment code or a notice of proofing. The delivery address for these artifacts is obtained from records and not self-asserted by the user. The address can include a physical or digital address. A home address is an example of a physical address. Email addresses and telephone numbers are examples of digital addresses.

What to Check

• Verify IA-12(5) Address Confirmation is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for IA-12(5)
• Verify enhancement builds upon base control IA-12

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for IA-12(5) 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 authentication settings	cloud_audit_iam_policies
hackbrowser-mcp	Test authentication mechanisms	browser_auth_test

Remediation Guide

Control Statement

Require that a [organization-defined] be delivered through an out-of-band channel to verify the users address (physical or digital) of record.