SI-7(10)_protection-of-boot-firmware

DevOps & Security

Implement the following mechanisms to protect the integrity of boot firmware in [organization-defined]: [organization-defined].

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SI-7(10) Protection of Boot Firmware

Enhancement of: SI-7

High-Level Description

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

Unauthorized modifications to boot firmware may indicate a sophisticated, targeted attack. These types of targeted attacks can result in a permanent denial of service or a persistent malicious code presence. These situations can occur if the firmware is corrupted or if the malicious code is embedded within the firmware. System components can protect the integrity of boot firmware in organizational systems by verifying the integrity and authenticity of all updates to the firmware prior to applying changes to the system component and preventing unauthorized processes from modifying the boot firmware.

What to Check

Verify SI-7(10) Protection of Boot Firmware is documented in SSP
Confirm control is operating effectively
Review evidence of continuous monitoring for SI-7(10)
Verify enhancement builds upon base control SI-7

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for SI-7(10) 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
cloud-audit-mcp	Check integrity monitoring	`cloud_audit_monitoring`
AWS CLI	Review GuardDuty/Inspector	`aws guardduty list-detectors`

Remediation Guide

Control Statement

Implement the following mechanisms to protect the integrity of boot firmware in [organization-defined]: [organization-defined].

Implementation Guidance

Risk Assessment

Finding	Severity	Impact
SI-7(10) Protection of Boot Firmware not implemented	High	System and Information Integrity
SI-7(10) partially implemented	Medium	Incomplete System and Information Integrity

CWE Categories

CWE ID	Title
CWE-20	Improper Input Validation

References

Checklist

Control documented in SSP
Implementation evidence collected
Operating effectiveness validated
Continuous monitoring in place
Related controls (SI-6) reviewed