AU-13(2)_review-of-monitored-sites

DevOps & Security

Review the list of open-source information sites being monitored [organization-defined].

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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-13(2)_review-of-monitored-sites/SKILL.md

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AU-13(2) Review of Monitored Sites

Enhancement of: AU-13

High-Level Description

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

Reviewing the current list of open-source information sites being monitored on a regular basis helps to ensure that the selected sites remain relevant. The review also provides the opportunity to add new open-source information sites with the potential to provide evidence of unauthorized disclosure of organizational information. The list of sites monitored can be guided and informed by threat intelligence of other credible sources of information.

What to Check

Verify AU-13(2) Review of Monitored Sites is documented in SSP
Confirm control is operating effectively
Review evidence of continuous monitoring for AU-13(2)
Verify enhancement builds upon base control AU-13

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AU-13(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
cloud-audit-mcp	Check logging configuration	`cloud_audit_logging`
AWS CLI	Review CloudTrail/CloudWatch	`aws cloudtrail describe-trails`

Remediation Guide

Control Statement

Review the list of open-source information sites being monitored [organization-defined].

Implementation Guidance

Risk Assessment

Finding	Severity	Impact
AU-13(2) Review of Monitored Sites not implemented	Medium	Audit and Accountability
AU-13(2) 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 (none) reviewed