AC-17(6)_protection-of-mechanism-information

DevOps & Security

Protect information about remote access mechanisms from unauthorized use and disclosure.

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/NIST/SP800-53_rev5/AC_access-control/AC-17(6)_protection-of-mechanism-information/SKILL.md

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AC-17(6) Protection of Mechanism Information

Enhancement of: AC-17

High-Level Description

Family: Access Control (AC) Framework: NIST SP 800-53 Rev 5

Remote access to organizational information by non-organizational entities can increase the risk of unauthorized use and disclosure about remote access mechanisms. The organization considers including remote access requirements in the information exchange agreements with other organizations, as applicable. Remote access requirements can also be included in rules of behavior (see PL-4 ) and access agreements (see PS-6).

What to Check

Verify AC-17(6) Protection of Mechanism Information is documented in SSP
Confirm control is operating effectively
Review evidence of continuous monitoring for AC-17(6)
Verify enhancement builds upon base control AC-17

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AC-17(6) 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 IAM policies and access controls	`cloud_audit_iam_policies`
hackbrowser-mcp	Test web application access controls	`browser_auth_test`

Remediation Guide

Control Statement

Protect information about remote access mechanisms from unauthorized use and disclosure.

Implementation Guidance

Risk Assessment

Finding	Severity	Impact
AC-17(6) Protection of Mechanism Information not implemented	High	Access Control
AC-17(6) partially implemented	Medium	Incomplete Access Control

CWE Categories

CWE ID	Title
CWE-284	Improper Access Control

References

Checklist

Control documented in SSP
Implementation evidence collected
Operating effectiveness validated
Continuous monitoring in place
Related controls (AT-2, AT-3, PS-6) reviewed