CP-9(2)_test-restoration-using-sampling

CP-9(2) Test Restoration Using Sampling

Enhancement of: CP-9

High-Level Description

Family: Contingency Planning (CP) Framework: NIST SP 800-53 Rev 5

Organizations need assurance that system functions can be restored correctly and can support established organizational missions. To ensure that the selected system functions are thoroughly exercised during contingency plan testing, a sample of backup information is retrieved to determine whether the functions are operating as intended. Organizations can determine the sample size for the functions and backup information based on the level of assurance needed.

What to Check

• Verify CP-9(2) Test Restoration Using Sampling is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for CP-9(2)
• Verify enhancement builds upon base control CP-9

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for CP-9(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

Remediation Guide

Control Statement

Use a sample of backup information in the restoration of selected system functions as part of contingency plan testing.

Implementation Guidance

Organizations need assurance that system functions can be restored correctly and can support established organizational missions. To ensure that the selected system functions are thoroughly exercised during contingency plan testing, a sample of backup information is retrieved to determine whether the functions are operating as intended. Organizations can determine the sample size for the functions and backup information based on the level of assurance needed.

Risk Assessment

CWE Categories

References

• NIST SP 800-53 Rev 5 - CP-9(2)
• 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 (CP-4) reviewed