Assessment Objective

Determine if:

• MA-04a.
  • MA-04a.[01] nonlocal maintenance and diagnostic activities are approved;
  • MA-04a.[02] nonlocal maintenance and diagnostic activities are monitored;
• MA-04b.
  • MA-04b.[01] the use of nonlocal maintenance and diagnostic tools are allowed only as consistent with organizational policy;
  • MA-04b.[02] the use of nonlocal maintenance and diagnostic tools are documented in the security plan for the system;
• MA-04c. strong authentication is employed in the establishment of nonlocal maintenance and diagnostic sessions;
• MA-04d. records for nonlocal maintenance and diagnostic activities are maintained;
• MA-04e.
  • MA-04e.[01] session connections are terminated when nonlocal maintenance is completed;
  • MA-04e.[02] network connections are terminated when nonlocal maintenance is completed.

Assessment Methods

Examine

• Maintenance policy
• procedures addressing nonlocal system maintenance
• remote access policy
• remote access procedures
• system design documentation
• system configuration settings and associated documentation
• maintenance records
• records of remote access
• diagnostic records
• system security plan
• other relevant documents or records

Interview

• Organizational personnel with system maintenance responsibilities
• organizational personnel with information security responsibilities
• system/network administrators

Test

• Organizational processes for managing nonlocal maintenance
• mechanisms implementing, supporting, and/or managing nonlocal maintenance
• mechanisms for strong authentication of nonlocal maintenance diagnostic sessions
• mechanisms for terminating nonlocal maintenance sessions and network connections

Gekoppelde issues

• 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.