Mapped to NIST 800-171 Requirement: 3.4.7
CMMC Assessment Objective: CM.L2-3.4.7[c]
What This Objective Means
This is the access control validation step for system maintenance utilities. You must verify that:
• Access to powerful system utilities is granted only to approved users or roles
• Permissions are set and enforced through technical controls
• The use of these tools is limited to what’s necessary, and enforced through least privilege principles
Examples of tools that must be restricted include:
• PowerShell, Command Prompt, Registry Editor
• Remote Desktop, SSH, Telnet
• System management APIs or consoles
• Backup or configuration tools with elevated access
Why It Matters
If access to system maintenance tools is unrestricted:
• Anyone could bypass controls, exfiltrate CUI, or misconfigure critical systems
• Malicious actors could use built-in tools to avoid detection
• You risk failing audit checks and losing log traceability
Access control is your first line of defense against tool misuse.
How to Implement It
• Apply technical restrictions using:
◦ Group Policy Objects (GPO)
◦ Linux file permissions and sudo rules
◦ RBAC (Role-Based Access Control) in cloud and local environments
◦ Application allowlisting (e.g., AppLocker, JAMF, or third-party endpoint protection)
• Limit tool access by:
◦ User
◦ Group
◦ System role
◦ Network location (e.g., restrict access to local use only)
• Test and log attempts to access tools for auditing
Evidence the Assessor Will Look For
• Screenshots of ACLs, GPOs, or endpoint security configurations that restrict access to admin tools
• Logs showing blocked or restricted access to system utilities
• Role mapping documentation that ties tool access to job responsibilities
• Examples of users being denied access to tools they’re not authorized to use
Common Gaps
• Tools are installed and accessible by all users, regardless of role
• RBAC not implemented for local or cloud-admin interfaces
• Technical controls not aligned with documented access policies
How Cuick Trac Helps
Cuick Trac supports this control by:
• Enforcing role-based restrictions on all enclave-level system tools
• Providing templates for policy and permission mapping of tool access
• Logging all attempts to access or execute maintenance tools
• Helping document system access settings for compliance assessments
With Cuick Trac, your access control strategy extends to the tools that matter most.
Final CTA
Don’t give powerful tools to everyone.
Schedule a Cuick Trac demo and enforce access controls that protect your system from the inside out.