AMLS-L2-000130 - The Arista Multilayer Switch must authenticate all endpoint devices before establishing a network connection using bidirectional authentication that is cryptographically based - dot1x system-auth-control

Information

Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity on the network. Bidirectional authentication provides stronger safeguards to validate the identity of other devices for connections that are of greater risk (e.g., remote connections).

Bidirectional authentication solutions include, but are not limited to, IEEE 802.1x and Extensible Authentication Protocol (EAP) and Radius server with EAP-Transport Layer Security (TLS) authentication.

A network connection is any connection with a device that communicates through a network (e.g., local area network, wide area network, or the Internet).

Authentication must use a form of cryptography to ensure a high level of trust and authenticity.

Solution

Configure 802.1X on the switch, using the following mandatory parameters for all applicable interfaces. Replace the bracketed variable with the applicable value.

config
interface Ethernet[X]
switchport access vlan [Y]
dot1x pae authenticator
dot1x reauthentication
dot1x port-control auto
dot1x host-mode single-host
dot1x timeout quiet-period [value]
dot1x timeout reauth-period [value]
dot1x max-reauth-req [value]

For the global configuration, include the following command statements from the global configuration mode interface:

logging level DOT1X informational
aaa authentication dot1x default group radius
dot1x system-auth-control

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Arista_MLS_DCS-7000_Series_Y20M07_STIG.zip

Item Details

Category: IDENTIFICATION AND AUTHENTICATION

References: 800-53|IA-3(1), CAT|II, CCI|CCI-001967, Group-ID|V-60825, Rule-ID|SV-75281r1_rule, STIG-ID|AMLS-L2-000130, Vuln-ID|V-60825

Plugin: Arista

Control ID: 12cbe7ab7f44bbfb61915fe67e2cbe542e8c45122ffbe34982ddbaba70272644