The organization must manage Voice Video system identifiers (e.g., phone numbers, IP addresses, IP ranges, VLANs) by receiving authorization from the ISSM or ISSO to assign a device identifier.

From Voice Video Policy Security Technical Implementation Guide

Part of SRG-POL-300446

Associated with: CCI-001971

VVSP-01-000090_rule The organization must manage Voice Video system identifiers (e.g., phone numbers, IP addresses, IP ranges, VLANs) by receiving authorization from the ISSM or ISSO to assign a device identifier.

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 (PS-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 by receiving authorization from the ISSM or ISSO to assign a device identifier. The device identifiers relevant to the Voice Video systems implemented in DoD include: - Phone numbers and subscriber terminal IDs; - IP addresses and IP ranges; and - VLANs for media, signaling, and management. If the organization has not received authorization from the ISSM or ISSO to assign all device identifiers for the Voice Video system, this is a finding.

Fix text

Document in each Voice Video SSP the authorizations received from the ISSM or ISSO to assign a device identifier. The device identifiers relevant to the Voice Video systems implemented in DoD include: - Phone numbers and subscriber terminal IDs; - IP addresses and IP ranges; and - VLANs for media, signaling, and management.

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