SI-2(3)_time-to-remediate-flaws-and-benchmarks-for-corrective-action

SI-2(3) Time to Remediate Flaws and Benchmarks for Corrective Actions

Enhancement of: SI-2

High-Level Description

Family: System and Information Integrity (SI) Framework: NIST SP 800-53 Rev 5

Organizations determine the time it takes on average to correct system flaws after such flaws have been identified and subsequently establish organizational benchmarks (i.e., time frames) for taking corrective actions. Benchmarks can be established by the type of flaw or the severity of the potential vulnerability if the flaw can be exploited.

What to Check

• Verify SI-2(3) Time to Remediate Flaws and Benchmarks for Corrective Actions is documented in SSP
• Validate all 2 control requirements are implemented
• Confirm control is operating effectively
• Review evidence of continuous monitoring for SI-2(3)
• Verify enhancement builds upon base control SI-2

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for SI-2(3) 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

Remediation Guide

Control Statement

Measure the time between flaw identification and flaw remediation; and Establish the following benchmarks for taking corrective actions: [organization-defined].

Implementation Guidance

Organizations determine the time it takes on average to correct system flaws after such flaws have been identified and subsequently establish organizational benchmarks (i.e., time frames) for taking corrective actions. Benchmarks can be established by the type of flaw or the severity of the potential vulnerability if the flaw can be exploited.

Risk Assessment

CWE Categories

References

• NIST SP 800-53 Rev 5 - SI-2(3)
• NIST SP 800-53A Rev 5 (Assessment Procedures)
• NIST SP 800-53 Rev 5 Full Catalog

Checklist

• Control documented in SSP
• Implementation evidence collected
• Operating effectiveness validated
• Continuous monitoring in place
• Related controls (none) reviewed