C5 (Germany)
C5: Communication Security

C5 (Germany) C5-COS-02: Security requirements for connections in the Cloud Service Provider's network

Design, publish and issue binding connection requirements stating when security zones separate and customers are segregated, which protocols and communication relationships are permitted, how administration and monitoring traffic is kept apart, and which cross-site and cross-network traffic is allowed.

Maintained by Gerard BlokdykVerified against the published standard Control text last updated

What else in your programme already covers this

This control maps to 49 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.

FedRAMP High · 6 controls

  • CA-3 Information Exchange
  • CA-9 Internal System Connections
  • SC-7 Boundary Protection
  • SC-7(3) Access Points
  • SC-7(4) External Telecommunications Services
  • SC-7(5) Deny by Default Allow by Exception

FedRAMP Moderate · 6 controls

  • CA-3 Information Exchange
  • CA-9 Internal System Connections
  • SC-7 Boundary Protection
  • SC-7(3) Access Points
  • SC-7(4) External Telecommunications Services
  • SC-7(5) Deny by Default Allow by Exception
  • ANSSI-HYG-07 Authorise Network Connection Only for Managed Equipment
  • ANSSI-HYG-19 Segment the Network and Partition the Zones
  • ANSSI-HYG-25 Secure Dedicated Network Interconnections with Partners
  • ASBv3-GS-4 Define and implement network security strategy
  • NS-1 Establish network segmentation boundaries
  • NS-2 Secure cloud services with network controls

CMMC 2.0 · 3 controls

NIST SP 800-161 Rev 1 · 3 controls

NIST SP 800-53 Rev 5 · 3 controls

PCI DSS 4.0 · 3 controls

  • 1.1.1 1.1.1 Requirement 1 policies and procedures governed
  • 1.2.1 1.2.1 Ruleset configuration standards for NSCs
  • 1.4.1 1.4.1 NSCs between trusted and untrusted networks

CIS Controls v8 · 2 controls

  • CIS-12.2 Establish and Maintain a Secure Network Architecture
  • CIS-4.2 Establish and Maintain a Secure Configuration Process for Network Infrastructure

ISO 27002:2022 · 2 controls

  • 8.21 Security of network services
  • 8.22 Segregation of networks
  • 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

NIST SP 800-171 Rev 3 · 2 controls

  • ASD37-22 Network segmentation (Excellent)

ISO 27001:2022 · 1 control

  • 8.21 Security of network services

ISO 27701:2019 · 1 control

  • 6.10.1 Network security management

NIS2 Directive · 1 control

  • Art.21.2.g Basic cyber hygiene practices and cybersecurity training

NIST SP 800-172 · 1 control

  • 3.5.3e Prohibit Connection of Unknown or Unverified System Components

SOC 2 · 1 control

  • SOC2-CC6.6 CC6.6 Protection against threats from outside the system boundary

UK Cyber Essentials · 1 control

  • CE-FW.4 Approve and Document Inbound Rules

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.

Other controls in C5: Communication Security

You are reading one control. How much of C5 (Germany) have you already done?

C5 (Germany) C5-COS-02 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of C5 (Germany) your existing evidence covers. Hold Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 and 95 of 121 C5 (Germany) controls already carry evidence.

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. 0 were rejected on the Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 pair alone.

Query this from an agent

The graph holds this control, the 49 it maps to, and the evidence behind each claim, over MCP and REST.