The Voice Video Session Manager must only use of ports, protocols, and services allowed per the Ports, Protocols, and Services Management (PPSM) Category Assurance List (CAL) and Vulnerability Assessments (VAs).

From Voice Video Session Management Security Requirements Guide

Part of SRG-NET-000132

Associated with: CCI-000382

SV-76579r2_rule The Voice Video Session Manager must only use of ports, protocols, and services allowed per the Ports, Protocols, and Services Management (PPSM) Category Assurance List (CAL) and Vulnerability Assessments (VAs).

Vulnerability discussion

In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems.Network elements are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the network element must support the organizational requirements providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues.Requires further clarification from NIST.

Check content

Verify the Voice Video Session Manager only uses ports, protocols, and services allowed per the PPSM CAL and VAs. If the Verify the Voice Video Session Manager uses ports, protocols, and services other than those permitted by the PPSM CAL and VAs, this is a finding.

Fix text

Configure the Voice Video Session Manager to only use of ports, protocols, and services allowed per the PPSM CAL and VAs.

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