+AC-04(08) Security and Privacy Policy Filters

AC-04(08) Security and Privacy Policy Filters

Control

  1. Enforce information flow control using [Assignement: organization-defined security or privacy policy filters] as a basis for flow control decisions for [Assignement: organization-defined information flows] ; and
  2. [Selection(one-or-more): block; strip; modify; quarantine] data after a filter processing failure in accordance with [Assignement: organization-defined security or privacy policy].

Discussion

Organization-defined security or privacy policy filters can address data structures and content. For example, security or privacy policy filters for data structures can check for maximum file lengths, maximum field sizes, and data/file types (for structured and unstructured data). Security or privacy policy filters for data content can check for specific words, enumerated values or data value ranges, and hidden content. Structured data permits the interpretation of data content by applications. Unstructured data refers to digital information without a data structure or with a data structure that does not facilitate the development of rule sets to address the impact or classification level of the information conveyed by the data or the flow enforcement decisions. Unstructured data consists of bitmap objects that are inherently non-language-based (i.e., image, video, or audio files) and textual objects that are based on written or printed languages. Organizations can implement more than one security or privacy policy filter to meet information flow control objectives.

Assessment Objective

    1. information flow control is enforced using [Assignement: security policy filter] as a basis for flow control decisions for [Assignement: information flows];
    2. information flow control is enforced using [Assignement: privacy policy filter] as a basis for flow control decisions for [Assignement: information flows];
  2. [Selection(one-or-more): block; strip; modify; quarantine] data after a filter processing failure in accordance with [Assignement: security policy]; [Selection(one-or-more): block; strip; modify; quarantine] data after a filter processing failure in accordance with [Assignement: privacy policy].

Assessment Method

Examine

Access control policy information flow control policies procedures addressing information flow enforcement system design documentation system configuration settings and associated documentation list of security policy filters regulating flow control decisions list of privacy policy filters regulating flow control decisions system audit records system security plan privacy plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security and privacy responsibilities system developers

1. Übersicht

1.1 Referenzen

1.2 Identifizierte Anforderungen

1.3 Zugehörige Regulierungen

2. Identifizierte Anforderungen

Anforderungen

3. Zugehörige Regulierungen

Regulierungen

Verknüpfte Vorgänge

Verknüpfungen
is blocked by AC-04(08) Security and Privacy Policy Filters – Assessment Procedure
is blocked by Policy Decision Point (PDP)