The organization must manage Voice Video system identifiers (e.g., phone numbers, subscriber terminal IDs) by selecting and assigning an identifier for each Voice Video endpoint.

From Voice Video Policy Security Technical Implementation Guide

Part of SRG-POL-300447

Associated with: CCI-001972 CCI-001973

VVSP-01-000091_rule The organization must manage Voice Video system identifiers (e.g., phone numbers, subscriber terminal IDs) by selecting and assigning an identifier for each Voice Video endpoint.

Vulnerability discussion

Common device identifiers include, for example, media access control (MAC), Internet protocol (IP) addresses, device-unique identifiers, and phone numbers. Preventing reuse of identifiers implies preventing the assignment of previously used identifiers to different devices. For Voice Video systems, the importance of preventing reuse must also consider fire and emergency services (FES) requirements for life safety and Command and Control (C2) requirements mandating communications among top-level officials. Location (ALI) and phone number (ANI) databases are often used with VoIP systems to identify the precise location of a Voice Video endpoint. When endpoints are reused, these databases must also be updated. Adversaries can use improperly maintained databases as a way of mobilizing security and emergency personnel to a faux site to weaken responses in another area.

Check content

Review each Voice Video system security plan (SSP). Ensure the organization manages Voice Video system identifiers (e.g., phone numbers, subscriber terminal IDs) by selecting and assigning an identifier for each Voice Video endpoint. The Voice Video endpoint identifiers must be fully documented as used in the system. If the organization has not selected, assigned, and documented an identifier for each Voice Video endpoint in the Voice Video system, this is a finding.

Fix text

Document in each Voice Video SSP the selected and assigned identifier for each Voice Video endpoint in the Voice Video system. The organization must manage the Voice Video system identifiers (e.g., phone numbers, subscriber terminal IDs) by selecting and assigning an identifier for each Voice Video endpoint.

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