CM-4(2)_verification-of-controls

Testing & Quality

After system changes, verify that the impacted controls are implemented correctly, operating as intended, and producing the desired outcome with regar

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/NIST/SP800-53_rev5/CM_configuration-management/CM-4(2)_verification-of-controls/SKILL.md

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CM-4(2) Verification of Controls

Enhancement of: CM-4

High-Level Description

Family: Configuration Management (CM) Framework: NIST SP 800-53 Rev 5

Implementation in this context refers to installing changed code in the operational system that may have an impact on security or privacy controls.

What to Check

Verify CM-4(2) Verification of Controls is documented in SSP
Confirm control is operating effectively
Review evidence of continuous monitoring for CM-4(2)
Verify enhancement builds upon base control CM-4

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for CM-4(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 configuration baselines	`cloud_audit_config`
AWS CLI	Review Config rules	`aws configservice describe-config-rules`

Remediation Guide

Control Statement

After system changes, verify that the impacted controls are implemented correctly, operating as intended, and producing the desired outcome with regard to meeting the security and privacy requirements for the system.

Implementation Guidance

Implementation in this context refers to installing changed code in the operational system that may have an impact on security or privacy controls.

Risk Assessment

Finding	Severity	Impact
CM-4(2) Verification of Controls not implemented	Medium	Configuration Management
CM-4(2) partially implemented	Low	Incomplete Configuration Management

CWE Categories

CWE ID	Title
CWE-16	Configuration

References

Checklist

Control documented in SSP
Implementation evidence collected
Operating effectiveness validated
Continuous monitoring in place
Related controls (SA-11, SC-3, SI-6) reviewed