CMMC 2.0 SC.L2-3.13.6: Network Communication by Exception

What else in your programme already covers this

This control maps to 46 controls across 20 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.

CIS Controls v8 · 6 controls

CIS-12.2 Establish and Maintain a Secure Network Architecture
CIS-12.8 Establish and Maintain Dedicated Computing Resources for All Administrative Work
CIS-13.4 Perform Traffic Filtering Between Network Segments
CIS-13.9 Deploy Port-Level Access Control
CIS-4.4 Implement and Manage a Firewall on Servers
CIS-4.5 Implement and Manage a Firewall on End-User Devices

PCI DSS 4.0 · 6 controls

1.2.5 1.2.5 Allowed services, protocols and ports justified
1.2.6 1.2.6 Security features for insecure services in use
1.3.1 1.3.1 Inbound CDE traffic restricted
1.3.2 1.3.2 Outbound CDE traffic restricted
1.4.2 1.4.2 Restricting traffic entering trusted networks from outside
7.3.3 7.3.3 Access control default deny all

ASD Strategies to Mitigate Cyber Security Incidents · 4 controls

ASD37-08 Deny direct internet connectivity (Excellent)
ASD37-22 Network segmentation (Excellent)
ASD37-25 Software firewall - inbound (Very Good)
ASD37-26 Software firewall - outbound (Very Good)

C5 (Germany) · 4 controls

C5-COS-01 Technical safeguards
C5-COS-02 Security requirements for connections in the Cloud Service Provider's network
C5-COS-03 Monitoring of connections in the Cloud Service Provider's network
C5-COS-04 Cross-network access

SOC 2 · 4 controls

SOC2-CC5.2 CC5.2 General controls over technology (COSO principle 11)
SOC2-CC6.3 CC6.3 Role-based access, least privilege and segregation of duties
SOC2-CC6.6 CC6.6 Protection against threats from outside the system boundary
SOC2-CC6.7 CC6.7 Restricting and protecting information in transmission, movement and removal

Azure Security Benchmark · 3 controls

NS-1 Establish network segmentation boundaries
NS-2 Secure cloud services with network controls
NS-3 Deploy firewall at the edge of enterprise network

ANSSI Guide d'hygiene informatique (42 mesures, v2.0) · 2 controls

ANSSI-HYG-17 Enable and Configure the Local Firewall on Workstations
ANSSI-HYG-27 Prohibit Internet Access from Administration Workstations and Servers

AWS Well-Architected Security Pillar · 2 controls

SEC05-BP02 Control traffic flow within your network layers
SEC05-BP04 Automate network protection

ISO 27001:2022 · 2 controls

8.20 Networks security
8.22 Segregation of networks

NIST Cybersecurity Framework 2.0 · 2 controls

NIST-CSF-ID.AM-03 Representations of the organization's authorized network communication and internal and external network data flows are maintained
NIST-CSF-PR.IR-01 Networks and environments are protected from unauthorized logical access and usage

UK Cyber Essentials · 2 controls

CE-FW.4 Approve and Document Inbound Rules
CE-FW.5 Remove or Disable Unused Rules

ACSC Essential Eight · 1 control

E8-APP-ML1 Application Control (ML1)

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

CCM-IVS-03 Network Security

FedRAMP High · 1 control

SC-7(5) Deny by Default Allow by Exception

FedRAMP Moderate · 1 control

SC-7(5) Deny by Default Allow by Exception

NIST SP 800-171 Rev 3 · 1 control

03.13.06 Network Communications - Deny by Default - Allow by Exception

NIST SP 800-172 · 1 control

3.13.1e Create Diversity in System Components to Limit Malicious Code Propagation

NIST SP 800-53 Rev 5 · 1 control

NIST800-SC-7 SC-7 Boundary Protection

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 SC.L2-3.13.6 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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