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

DevOps & Security

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

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/NIST/SP800-53_rev5/CP_contingency-planning/CP-9(2)_test-restoration-using-sampling/SKILL.md

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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

Tool	Purpose	Usage
Manual Review	Documentation and interview-based	N/A

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

Risk Assessment

Finding	Severity	Impact
CP-9(2) Test Restoration Using Sampling not implemented	Medium	Contingency Planning
CP-9(2) partially implemented	Low	Incomplete Contingency Planning

CWE Categories

CWE ID	Title
N/A	No direct CWE mapping

References

Checklist

Control documented in SSP
Implementation evidence collected
Operating effectiveness validated
Continuous monitoring in place
Related controls (CP-4) reviewed