PE-9(1)_redundant-cabling

PE-9(1) Redundant Cabling

Enhancement of: PE-9

High-Level Description

Family: Physical and Environmental Protection (PE) Framework: NIST SP 800-53 Rev 5

Physically separate and redundant power cables ensure that power continues to flow in the event that one of the cables is cut or otherwise damaged.

What to Check

• Verify PE-9(1) Redundant Cabling is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for PE-9(1)
• Verify enhancement builds upon base control PE-9

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for PE-9(1) 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

Employ redundant power cabling paths that are physically separated by [organization-defined].

Implementation Guidance

Physically separate and redundant power cables ensure that power continues to flow in the event that one of the cables is cut or otherwise damaged.

Risk Assessment

CWE Categories

References

• NIST SP 800-53 Rev 5 - PE-9(1)
• 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