+SC-11 Trusted Path
---+SC-11(01) Irrefutable Communications Path

SC-11 Trusted Path

Control

  1. Provide a [Selection: physically; logically] isolated trusted communications path for communications between the user and the trusted components of the system; and
  2. Permit users to invoke the trusted communications path for communications between the user and the following security functions of the system, including at a minimum, authentication and re-authentication: [Assignement: security functions].

Discussion

Trusted paths are mechanisms by which users can communicate (using input devices such as keyboards) directly with the security functions of systems with the requisite assurance to support security policies. Trusted path mechanisms can only be activated by users or the security functions of organizational systems. User responses that occur via trusted paths are protected from modification by and disclosure to untrusted applications. Organizations employ trusted paths for trustworthy, high-assurance connections between security functions of systems and users, including during system logons. The original implementations of trusted paths employed an out-of-band signal to initiate the path, such as using the key, which does not transmit characters that can be spoofed. In later implementations, a key combination that could not be hijacked was used (e.g., the + + keys). Such key combinations, however, are platform-specific and may not provide a trusted path implementation in every case. The enforcement of trusted communications paths is provided by a specific implementation that meets the reference monitor concept.

Assessment Objective

  1. a [Selection: physically; logically] isolated trusted communication path is provided for communications between the user and the trusted components of the system;
  2. users are permitted to invoke the trusted communication path for communications between the user and the [Assignement: security functions] of the system, including authentication and re-authentication, at a minimum.

Assessment Method

Examine

System and communications protection policy procedures addressing trusted communication paths security plan system design documentation system configuration settings and associated documentation assessment results from independent, testing organizations system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer

1. Przegląd

SC-11(01) Irrefutable Communications Path

Control

  1. Provide a trusted communications path that is irrefutably distinguishable from other communications paths; and
  2. Initiate the trusted communications path for communications between the [Assignement: security functions] of the system and the user.

Discussion

An irrefutable communications path permits the system to initiate a trusted path, which necessitates that the user can unmistakably recognize the source of the communication as a trusted system component. For example, the trusted path may appear in an area of the display that other applications cannot access or be based on the presence of an identifier that cannot be spoofed.

Assessment Objective

  1. a trusted communication path that is irrefutably distinguishable from other communication paths is provided;
  2. the trusted communication path for communications between the [Assignement: security functions] of the system and the user is initiated.

Assessment Method

Examine

System and communications protection policy procedures addressing trusted communication paths security plan system design documentation system configuration settings and associated documentation assessment results from independent, testing organizations system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer

1.1 Odwołania

1.2 Zidentyfikowane wymagania

1.3 Powiązane regulacje

2. Zidentyfikowane wymagania

Wymagania

3. Powiązane regulacje

Regulacje

Powiązane zgłoszenia

Powiązania
is blocked by SC-11 Trusted Path – Assessment Procedure
is blocked by Secure Log-On Procedures (Trusted Path)
  • 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.

    DE: Veröffentlichungen des National Institute of Standards and Technology (NIST), U.S. Department of Commerce, https://www.nist.gov/, aus ihren elektronischen Fassungen (OSCAL; SP 800-63-4 aus ihrer HTML-Fassung, https://pages.nist.gov/800-63-4/). Werke von NIST-Beschäftigten sind in den USA urheberrechtlich nicht geschützt (17 U.S.C. § 105); die OSCAL-Inhalte sind weltweit gemeinfrei gestellt (CC0 1.0); außerhalb der USA räumt das NIST das Recht ein, seine Technical-Series-Publikationen in allen Formaten neu zu veröffentlichen (Copyright-Hinweis des NIST). „Republished courtesy of the National Institute of Standards and Technology“; jedes Dokument nennt seine Zitierangabe. In Abschnitte aufgeteilt und in das GRCA-Format umgewandelt, der Wortlaut unverändert. Maßgeblich sind allein die vom NIST veröffentlichten Fassungen.