CMMC 2.0 CM.L2-3.4.6: Least Functionality

What else in your programme already covers this

This control maps to 43 controls across 21 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.

PCI DSS 4.0 · 5 controls

1.2.5 1.2.5 Allowed services, protocols and ports justified
2.2.4 2.2.4 Only necessary functionality enabled
2.2.6 2.2.6 System security parameters configured against misuse
7.2.1 7.2.1 Access control model defined
7.3.1 7.3.1 Need-to-know access control system covers all components

ASD Strategies to Mitigate Cyber Security Incidents · 4 controls

ASD37-01 Application control (Essential)
ASD37-04 User application hardening (Essential)
ASD37-10 Server application hardening (Very Good)
ASD37-11 Operating system hardening (Very Good)

ISO 27002:2022 · 4 controls

8.19 Installation of software on operational systems
8.2 Privileged access rights
8.22 Segregation of networks
8.9 Configuration management

ACSC Essential Eight · 3 controls

E8-APP-ML1 Application Control (ML1)
E8-UAH-ML1 User Application Hardening - Maturity Level 1
E8-UAH-ML3 User Application Hardening - Maturity Level 3

CIS Controls v8 · 3 controls

CIS-12.2 Establish and Maintain a Secure Network Architecture
CIS-2.5 Allowlist Authorized Software
CIS-4.8 Uninstall or Disable Unnecessary Services on Enterprise Assets and Software

ISO 27001:2022 · 3 controls

8.19 Installation of software on operational systems
8.27 Secure system architecture and engineering principles
8.9 Configuration management

AWS Well-Architected Security Pillar · 2 controls

SEC05-BP02 Control traffic flow within your network layers
SEC06-BP02 Provision compute from hardened images

Azure Security Benchmark · 2 controls

AM-2 Use only approved services
ASBv3-NS-8 Detect and disable insecure services and protocols

C5 (Germany) · 2 controls

C5-COS-03 Monitoring of connections in the Cloud Service Provider's network
C5-OPS-23 Managing Vulnerabilities, Malfunctions and Errors - System Hardening

NIST Cybersecurity Framework 2.0 · 2 controls

NIST-CSF-PR.PS-01 Configuration management practices are established and applied
NIST-CSF-PR.PS-05 Installation and execution of unauthorized software are prevented

NIST SP 800-53 Rev 5 · 2 controls

NIST800-CM-6 CM-6 Configuration Settings
NIST800-CM-7 CM-7 Least Functionality

SOC 2 · 2 controls

SOC2-CC6.1 CC6.1 Logical access security over protected information assets
SOC2-CC6.3 CC6.3 Role-based access, least privilege and segregation of duties

ANSSI Guide d'hygiene informatique (42 mesures, v2.0) · 1 control

ANSSI-HYG-14 Apply a Minimum Security Level Across the Whole Estate

CFTC System Safeguards (17 CFR 37, 38, 39, 49) · 1 control

CFTC-SS-4 Systems Operations Category

Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 · 1 control

CCM-IVS-04 OS Hardening and Base Controls

FedRAMP High · 1 control

CM-7 Least Functionality

NIST SP 800-161 Rev 1 · 1 control

161R1-CM-7 Least Functionality

NIST SP 800-171 Rev 3 · 1 control

03.04.06 Least Functionality

NIST SP 800-172 · 1 control

3.13.2e Introduce Unpredictability into System Operations

UK Cyber Essentials · 1 control

CE-SC.1 Remove or Disable Unused Software

Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.

You are reading one control. How much of CMMC 2.0 have you already done?

CMMC 2.0 CM.L2-3.4.6 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of CMMC 2.0 your existing evidence covers. Hold FedRAMP Moderate and 108 of 110 CMMC 2.0 controls already carry evidence.

If you hold FedRAMP Moderate98.2% covered · 2 gaps If you hold NIST SP 800-171 Rev 394.5% covered · 6 gaps If you hold NIST SP 800-53 Rev 585.5% covered · 16 gaps If you hold ISO 27001:202279.1% covered · 23 gaps If you hold ISO 27002:202267.3% covered · 36 gaps If you hold CIS Controls v864.5% covered · 39 gaps

Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 1 were rejected on the FedRAMP Moderate pair alone.

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