Cloud Security Maturity Model 2.0
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NET-02.1: Sensitive ports are not exposed to the internet
NET-02.1: Sensitive network ports are not exposed to the internet, including administrative ports (SSH/RDP), database ports and other common management ports. This is typically a good indicator that basic network security hygiene is in place, even if implemented manually.

  • Control automation: Automated

  • AWS control specification: Instances or load balancers are not in security groups that expose the following ports:

  • MongoDB ports 27017 and 27018

  • FTP ports 20 or 21

  • port 22

  • port 3389

  • Cassandra ports 7199 or 9160 or 8888

  • Elasticsearch/Kibana ports 9200 or 9300 or 5601

  • Kafka port 9092

  • Memcached port 11211

  • MySQL port 3306

  • Oracle ports 1521 or 2483

  • Postgres port 5432

  • Redis port 6379

  • Windows SQL Server ports 1433 or 1434

  • Telnet port 23

  • Azure control specification: VMs or load balancers are not in network security groups that expose the following ports:

  • MongoDB ports 27017 and 27018

  • FTP ports 20 or 21

  • port 22

  • port 3389

  • Cassandra ports 7199 or 9160 or 8888

  • Elasticsearch/Kibana ports 9200 or 9300 or 5601

  • Kafka port 9092

  • Memcached port 11211

  • MySQL port 3306

  • Oracle ports 1521 or 2483

  • Postgres port 5432

  • Redis port 6379

  • Windows SQL Server ports 1433 or 1434

  • Telnet port 23

  • GCP control specification: none

  • Third-party (CSPM/CNAPP) control specification: none

Not Applicable - Not applicable
Level 1: Initial - Initial. Manually managing policies/procedures, mostly through console. Architectures tend to resemble traditional infrastructure (e.g., low use of serverless and high reliance on network security controls). IAM mostly ad hoc with little-to-no federation.
Level 2: Repeatable - Repeatable. Policy-/checklist-based and relies more on manual or simple tooling. High variability between projects; not coordinated across deployments. Initial use of infrastructure as code (Terraform/CloudFormation), but security not consistently engaged in design/review. Federation on some accounts, but limited use of MFA due to difficulties supporting teams (especially on the command line).
Level 3: Defined - Defined. Policies and central coordination in place. Some initial security automation still executed manually. Some third-party tooling (orchestration with other tools), Federation on most accounts with widespread MFA, but still gaps on consistency. Security starting to review and promote use of CloudFormation/Terraform. CSPM/CNAPP (CSP or third party) in use.
Level 4: Capable - Capable. Strong centralized security management with consistent enforcement. Automation and guardrails across multiple deployments. Expanding library. Big shift from manual management and execution to running security operations with centralized platforms with centralized management and reporting. Consistent use of federation and MFA, with some gaps supporting toolchains.
Level 5: Efficient - Efficient. All major activities centrally managed, covering all of the CSMM domains. Integrated into infrastructure-as-code (IaC) environment. Built into the stack with provisioning automation. Federation and MFA working consistently across toolchains (e.g., command-line support).

Description

  • Control automation: Automated

  • AWS control specification: Instances or load balancers are not in security groups that expose the following ports:

  • MongoDB ports 27017 and 27018

  • FTP ports 20 or 21

  • port 22

  • port 3389

  • Cassandra ports 7199 or 9160 or 8888

  • Elasticsearch/Kibana ports 9200 or 9300 or 5601

  • Kafka port 9092

  • Memcached port 11211

  • MySQL port 3306

  • Oracle ports 1521 or 2483

  • Postgres port 5432

  • Redis port 6379

  • Windows SQL Server ports 1433 or 1434

  • Telnet port 23

  • Azure control specification: VMs or load balancers are not in network security groups that expose the following ports:

  • MongoDB ports 27017 and 27018

  • FTP ports 20 or 21

  • port 22

  • port 3389

  • Cassandra ports 7199 or 9160 or 8888

  • Elasticsearch/Kibana ports 9200 or 9300 or 5601

  • Kafka port 9092

  • Memcached port 11211

  • MySQL port 3306

  • Oracle ports 1521 or 2483

  • Postgres port 5432

  • Redis port 6379

  • Windows SQL Server ports 1433 or 1434

  • Telnet port 23

  • GCP control specification: none

  • Third-party (CSPM/CNAPP) control specification: none