+SI-04(11) Analyze Communications Traffic Anomalies
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SI-04(11) Analyze Communications Traffic Anomalies
Control
Analyze outbound communications traffic at the external interfaces to the system and selected [Assignement: interior points] to discover anomalies.
Discussion
Organization-defined interior points include subnetworks and subsystems. Anomalies within organizational systems include large file transfers, long-time persistent connections, attempts to access information from unexpected locations, the use of unusual protocols and ports, the use of unmonitored network protocols (e.g., IPv6 usage during IPv4 transition), and attempted communications with suspected malicious external addresses.
Assessment Objective
- outbound communications traffic at the external interfaces to the system is analyzed to discover anomalies;
- outbound communications traffic at [Assignement: interior points] is analyzed to discover anomalies.
Assessment Method
Examine
System and information integrity policy
system and information integrity procedures
procedures addressing system monitoring tools and techniques
system design documentation
network diagram
system monitoring tools and techniques documentation
system configuration settings and associated documentation
system monitoring logs or records
system audit records
system security plan
other relevant documents or records
Interview
System/network administrators
organizational personnel with information security responsibilities
organizational personnel installing, configuring, and/or maintaining the system
organizational personnel responsible for monitoring the system
organizational personnel responsible for the intrusion detection system
1. Επισκόπηση
1.1 Παραπομπές
1.2 Εντοπισμένες απαιτήσεις
1.3 Σχετικοί κανονισμοί
2. Εντοπισμένες απαιτήσεις
3. Σχετικοί κανονισμοί
Κανονισμοί
| Πηγή |
Κανονισμός |
Συνδεδεμένα ζητήματα
- 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.
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