SA-08(05) Efficiently Mediated Access

Control

Implement the security design principle of efficiently mediated access in [Assignement: systems or system components].

Discussion

The principle of efficiently mediated access states that policy enforcement mechanisms utilize the least common mechanism available while satisfying stakeholder requirements within expressed constraints. The mediation of access to system resources (i.e., CPU, memory, devices, communication ports, services, infrastructure, data, and information) is often the predominant security function of secure systems. It also enables the realization of protections for the capability provided to stakeholders by the system. Mediation of resource access can result in performance bottlenecks if the system is not designed correctly. For example, by using hardware mechanisms, efficiently mediated access can be achieved. Once access to a low-level resource such as memory has been obtained, hardware protection mechanisms can ensure that out-of-bounds access does not occur.

Assessment Objective

[Assignement: systems or system components] implement the security design principle of efficiently mediated access.

Assessment Method

Examine

System and services acquisition policy procedures addressing the security design principle of efficiently mediated access used in the specification, design, development, implementation, and modification of the system system design documentation security and privacy requirements and specifications for the system system security and privacy architecture system security plan other relevant documents or records

Interview

Organizational personnel with acquisition/contracting responsibilities organizational personnel with the responsibility for determining system security and privacy requirements organizational personnel with system specification, design, development, implementation, and modification responsibilities system developers organizational personnel with information security responsibilities

1. Resumen

Título	Estándar

1.1 Referencias

1.2 Requisitos identificados

1.3 Regulaciones relacionadas

2. Requisitos identificados

Requisitos
Fuente	Requisito

3. Regulaciones relacionadas

Regulaciones
Fuente	Regulación

Incidencias vinculadas

Vínculos
Tipo de vínculo	Incidencia
is blocked by	SA-08(05) Efficiently Mediated Access – Assessment Procedure

NIST -
EN: Publications of the National Institute of Standards and Technology (NIST), U.S. Department of Commerce, https://www.nist.gov/, from their electronic versions (OSCAL; SP 800-63-4 from its HTML version, https://pages.nist.gov/800-63-4/). Works of NIST employees are not subject to copyright protection in the United States (17 U.S.C. § 105); the OSCAL content is dedicated to the public domain worldwide (CC0 1.0); outside the United States NIST grants the right to reprint its technical series publications in all formats (NIST copyright statement). Republished courtesy of the National Institute of Standards and Technology; each document names its citation. Divided into sections and converted into the GRCA format, the wording unchanged. Only the versions published by NIST are authoritative.

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