Section 22.216 Validating Vulnerability Remediation

Question 1

Remediation

Answer 1

Involves installing patches, reconfiguring devices, or other actions

Question 2

Rescanning Devices

Answer 2

Conduct post-remediation scans to double-check vulnerability mitigation

■ Identify any remaining unaddressed vulnerabilities

■ Detect new vulnerabilities that may have emerged since the initial scan

■ Validate whether applied patches effectively solved the identified vulnerabilities

Suggestions: Schedule automatic re-scans and maintain consistency with initial scan conditions.
● Use comprehensive scans
● Replicate initial scan conditions

Question 3

Auditing Devices

Auditing

Answer 3

Involves systematic review of logs, configurations, and patches

● Ensures alignment with established security standards and policies

Question 4

Auditing Devices

Configuration Auditing

Answer 4

Checks for misconfigurations or deviations

Question 5

Auditing Devices

Patch Auditing

Answer 5

Confirms proper application and effectiveness of patches

■ Maintain detailed records of vulnerabilities, patches, and changes

■ Use automated auditing tools and include compliance checks for industry
regulations or standards

Question 6

Verification of Devices

Verification

Answer 6

Final step in validating remediation

● Involves testing systems to confirm patches and configuration changes

■ Conduct penetration tests to verify vulnerability remediation

Question 7

User Verification

Answer 7

Ensures applications and services are functioning correctly

■ Establish feedback loops with users and staff to identify and address
post-remediation issues

Perform:
● Holistic testing
● Continuous monitoring
● Consider external auditors for verification

Verify both the resolution of vulnerabilities and overall system stability and functionality