id: "SC-02" title: "Separation of System and User Functionality" family: "SC" family_name: "System and Communications Protection" sort_id: "sc-02" priority: "P1" implementation_level: "system" enhancements: - sc-2.1 - sc-2.2
Statement
Separate user functionality, including user interface services, from system management functionality.
Guidance
System management functionality includes functions that are necessary to administer databases, network components, workstations, or servers. These functions typically require privileged user access. The separation of user functions from system management functions is physical or logical. Organizations may separate system management functions from user functions by using different computers, instances of operating systems, central processing units, or network addresses; by employing virtualization techniques; or some combination of these or other methods. Separation of system management functions from user functions includes web administrative interfaces that employ separate authentication methods for users of any other system resources. Separation of system and user functions may include isolating administrative interfaces on different domains and with additional access controls. The separation of system and user functionality can be achieved by applying the systems security engineering design principles in SA-8 , including SA-8(1), SA-8(3), SA-8(4), SA-8(10), SA-8(12), SA-8(13), SA-8(14) , and SA-8(18).
Assessment Objective
user functionality, including user interface services, is separated from system management functionality.
System and communications protection policy
procedures addressing application partitioning
system design documentation
system configuration settings and associated documentation
system audit records
system security plan
other relevant documents or records
System/network administrators
organizational personnel with information security responsibilities
system developer
Separation of user functionality from system management functionality