au-10-5-digital-signatures

name	AU-10(5)_digital-signatures
description	Digital Signatures
category	information-gathering
version	5.2.0
author	cyberstrike-official
tags	["nist","sp800-53","rev5","au-10-5","au","enhancement"]
tech_stack	["aws","azure","gcp","linux","windows"]
cwe_ids	["CWE-778"]
chains_with	[]
prerequisites	["AU-10"]
severity_boost	{}

AU-10(5) Digital Signatures

Enhancement of: AU-10

High-Level Description

Family: Audit and Accountability (AU) Framework: NIST SP 800-53 Rev 5

No description available.

What to Check

• Verify AU-10(5) Digital Signatures is documented in SSP
• Confirm control is operating effectively
• Review evidence of continuous monitoring for AU-10(5)
• Verify enhancement builds upon base control AU-10

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AU-10(5) 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 logging configuration	cloud_audit_logging
AWS CLI	Review CloudTrail/CloudWatch	aws cloudtrail describe-trails

Remediation Guide

Control Statement

Refer to NIST SP 800-53 Rev 5 for the full control statement.

Implementation Guidance

Implement this control per organizational risk assessment and system categorization.

Risk Assessment

Finding	Severity	Impact
AU-10(5) Digital Signatures not implemented	Medium	Audit and Accountability
AU-10(5) partially implemented	Low	Incomplete Audit and Accountability