FedRAMP Controls / CM

CM-7 Least Functionality

Family CM
Baselines moderate
Mapped KSIs 2

Control statement

a. Configure the system to provide only {{ insert: param, cm-07_odp.01 }} ; and
    b. Prohibit or restrict the use of the following functions, ports, protocols, software, and/or services: {{ insert: param, cm-7_prm_2 }}.
        (b) Requirement: The service provider shall use Security guidelines (See CM-6) to establish list of prohibited or restricted functions, ports, protocols, and/or services or establishes its own list of prohibited or restricted functions, ports, protocols, and/or services if STIGs or CIS is not available.

Parameter placeholders {{ insert: param, … }} reference FedRAMP-set values in the resolved profile. Full parameter map is preserved in the catalog database.

Covered by these Key Security Indicators

KSITitleCategory
KSI-CMT-02Redeployment
Execute changes to _machine-based_ _information resources_ through redeployment of version controlled immutable resources rather than direct modification wherever possible.
Change Management
KSI-IAM-04Just-in-Time Authorization
Use a least-privileged, role and attribute-based, and just-in-time security authorization model for all user and non-user accounts and services.
Identity and Access Management