AU-11_audit-record-retention

DevOps & Security

Retain audit records for [organization-defined] to provide support for after-the-fact investigations of incidents and to meet regulatory and organizat

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/NIST/SP800-53_rev5/AU_audit-and-accountability/AU-11_audit-record-retention/SKILL.md

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AU-11 Audit Record Retention

High-Level Description

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

Organizations retain audit records until it is determined that the records are no longer needed for administrative, legal, audit, or other operational purposes. This includes the retention and availability of audit records relative to Freedom of Information Act (FOIA) requests, subpoenas, and law enforcement actions. Organizations develop standard categories of audit records relative to such types of actions and standard response processes for each type of action. The National Archives and Records Administration (NARA) General Records Schedules provide federal policy on records retention.

What to Check

Verify AU-11 Audit Record Retention is documented in SSP
Confirm control is operating effectively
Review evidence of continuous monitoring for AU-11

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AU-11 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

Retain audit records for [organization-defined] to provide support for after-the-fact investigations of incidents and to meet regulatory and organizational information retention requirements.

Implementation Guidance

Risk Assessment

Finding	Severity	Impact
AU-11 Audit Record Retention not implemented	Medium	Audit and Accountability
AU-11 partially implemented	Low	Incomplete Audit and Accountability

CWE Categories

CWE ID	Title
CWE-778	Insufficient Logging

References

Checklist

Control documented in SSP
Implementation evidence collected
Operating effectiveness validated
Continuous monitoring in place
Related controls (AU-2, AU-4, AU-5, AU-6, AU-9) reviewed