AC-19(5)_full-device-or-container-based-encryption

DevOps & Security

Employ [organization-defined] to protect the confidentiality and integrity of information on [organization-defined].

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Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/NIST/SP800-53_rev5/AC_access-control/AC-19(5)_full-device-or-container-based-encryption/SKILL.md

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AC-19(5) Full Device or Container-based Encryption

Enhancement of: AC-19

High-Level Description

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

Container-based encryption provides a more fine-grained approach to data and information encryption on mobile devices, including encrypting selected data structures such as files, records, or fields.

What to Check

Verify AC-19(5) Full Device or Container-based Encryption is documented in SSP
Confirm control is operating effectively
Review evidence of continuous monitoring for AC-19(5)
Verify enhancement builds upon base control AC-19

How to Test

Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for AC-19(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 IAM policies and access controls	`cloud_audit_iam_policies`
hackbrowser-mcp	Test web application access controls	`browser_auth_test`

Remediation Guide

Control Statement

Employ [organization-defined] to protect the confidentiality and integrity of information on [organization-defined].

Implementation Guidance

Container-based encryption provides a more fine-grained approach to data and information encryption on mobile devices, including encrypting selected data structures such as files, records, or fields.

Risk Assessment

Finding	Severity	Impact
AC-19(5) Full Device or Container-based Encryption not implemented	High	Access Control
AC-19(5) 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 (SC-12, SC-13, SC-28) reviewed