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The Enterprise Voice, Video, and Messaging Endpoint PC port must be configured to connect to an 802.1x supplicant or the PC port must be disabled.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-259945SRG-NET-000018-VVEP-00104SV-259945r1117236_ruleCCI-001368medium
Description
IEEE 802.1x is a protocol used to control access to LAN services via a network access switchport or wireless access point that requires a device or user to authenticate to the network element and become authorized by the authentication server before accessing the network. This standard is used to activate the network access switchport limiting traffic to a specific VLAN or install traffic filters. Implementing 802.1x port security on each access switchport denies all other MAC users, which eliminates the security risk of additional users attaching to a switch to bypass authentication. The hardware Enterprise Voice, Video, and Messaging Endpoint must be an 802.1x supplicant and integrate into the 802.1x access control system. When 802.1x is used, all devices connecting to the LAN are required to use 802.1x. An Enterprise Voice, Video, and Messaging Endpoint with a PC port may break 802.1x LAN access control mechanisms when the network access switchport is authorized during the Enterprise Voice, Video, and Messaging Endpoint authentication to the network. This condition may permit devices connected to the PC port to access the LAN. The access switchport can be configured in one of the following modes: single-host, multi-host, or multi-domain. Single-host allows only one device to authenticate, and only packets from this devices MAC address will be allowed, dropping all other packets. Multi-host mode requires one host to authenticate but once this is done, all packets regardless of source MAC address will be allowed. For both the PC attached to the PC port and the Enterprise Voice, Video, and Messaging Endpoint to authenticate separately, multi-domain authentication on the access switchport must be configured. This divides the switchport into a data and a voice domain. In this case if more than one device attempts authorization on either the voice or the data domain of a port, the switchport goes into an error disable state. Disabling the PC port requires the network access switchports are configured with the appropriate VLAN for the VVoIP or VTC traffic and placing the disabled PC port traffic on the unused VLAN. MAC Address Bypass (MAB) is a possible mitigation for this vulnerability.
STIGDate
Enterprise Voice, Video, and Messaging Endpoint Security Requirements Guide2025-10-01

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (17) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AST-04Network Diagrams & Data Flow Diagrams (DFDs)
1.00
AST-04.2Control Applicability Boundary Graphical Representation
1.00
CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
DCH-19Geographic Location of Data
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
IAC-21Least Privilege
1.00

+7 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (42) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-3(7)Role-based Access Control
1.00
AC-4Information Flow Enforcement
1.00
AC-6(10)Prohibit Non-privileged Users from Executing Privileged Functions
1.00
AC-6(9)Log Use of Privileged Functions
1.00

+32 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.1.3
1.00
CCI1 mapping
CCI-001368
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-09
1.00
ID.AM-03
1.00
PR.DS-10
1.00
PR.IR-01
1.00

Who does this work

18 NICE work roles and 10 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-259945r1117236_chk)

Verify the Enterprise Voice, Video, and Messaging Endpoint PC port is configured to connect to an 802.1x supplicant or is disabled. If the Enterprise Voice, Video, and Messaging Endpoint PC port is disabled, this is not a finding. If the Enterprise Voice, Video, and Messaging Endpoint PC port is not disabled and is not an 802.1x authenticator, this is a finding.

Fix Text (F-63583r948803_fix)

Configure the Enterprise Voice, Video, and Messaging Endpoint PC port to connect to an 802.1x supplicant in the implemented 802.1x network access control system or be disabled.