18.4
IG3

Validate Security Measures

Control Group: 18. Penetration Testing
Asset Type: Network
Security Function: Protect

Description

Validate security measures after each penetration test. If deemed necessary, modify rulesets and capabilities to detect the techniques used during testing.

Implementation Checklist

1
Assess current protection controls in place
2
Configure and deploy required security controls
3
Test control effectiveness in non-production environment
4
Deploy to production and verify functionality
5
Document configuration and operational procedures
6
Define penetration testing scope and rules of engagement
7
Engage qualified penetration testing team
8
Review findings and prioritize remediation
9
Validate remediation through retesting

Threats & Vulnerabilities (CIS RAM)

Threat Scenarios

Detection Controls Fail to Identify Known Attack Techniques

Confidentiality

An attacker uses the same techniques that were successful during a penetration test, and the organization's security controls still fail to detect them because rulesets were never updated based on test results.

Security Investment Wasted on Ineffective Controls

Integrity

The organization continues investing in security controls that a penetration test proved ineffective, because no post-test validation process assesses whether existing controls actually detect the tested attack techniques.

Attacker Reuses Penetration Test Methodology Successfully

Confidentiality

A real attacker follows a similar attack path to the penetration testers and succeeds because the organization never validated or improved its defensive capabilities based on the test findings.

Vulnerabilities (When Safeguard Absent)

No Post-Pentest Validation of Security Controls

Without validating security measures after penetration tests, the organization does not know whether its detection and prevention controls can actually identify and block the techniques used during testing.

Security Rulesets Not Updated Based on Test Results

Absence of post-test validation means SIEM rules, IDS signatures, and firewall policies are not tuned to detect the specific attack techniques that penetration testers successfully employed.

Evidence Requirements

Type Evidence Item Collection Frequency
Technical Configuration screenshots or exports showing protection controls enabled Captured quarterly
Document Procedure documentation for protection measures Reviewed annually
Record Penetration test report and executive summary Per engagement
Record Remediation tracking and retest validation results Post-engagement
Document Governing policy document (current, approved, communicated) Reviewed annually