STIGQter: STIG Summary: Arista MLS DCS-7000 Series L2S Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 22 Apr 2016:

The Arista Multilayer Switch must authenticate all endpoint devices before establishing a network connection using bidirectional authentication that is cryptographically based.

DISA Rule

SV-75281r1_rule

Vulnerability Number

V-60825

Group Title

SRG-NET-000151

Rule Version

AMLS-L2-000130

Severity

CAT II

CCI(s)

• CCI-001967 - The information system authenticates organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based.

Weight

10

Fix Recommendation

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

Check Contents

Verify that the network device uniquely identifies network-connected endpoint devices. This requirement is not applicable to Arista switches when not used as an access switch.

802.1X must be configured on any interface where there is an applicable endpoint device connected. This is demonstrated by viewing the running-config via the "show dot1x all" command and validating the following lines are present in the configuration:

Dot1X Information for Ethernet[X]
--------------------------------------------
PortControl : auto
HostMode : single-host
QuietPeriod : [value]
TxPeriod : [value]
ReauthPeriod : 3600 seconds
MaxReauthReq : 2

!

802.1X must also be globally enabled on the switch using the "dot1x system-auth-control" command from the configuration mode interface. When this is configured, the following line will be visible in the running-config:

dot1x-system-auth-control

802.1X is dependent on a properly configured RADIUS server for authentication. Refer to the RADIUS configuration example for validation of properly configured AAA services. Additionally, the user must specify to use the RADIUS server as an 802.1X authenticator with the "aaa authentication dot1x default group [radius]" command from the configuration mode interface, replacing the bracketed variable with either the group name of the RADIUS server group, or leaving it as is to authenticate against all RADIUS servers. When properly configured, the following line is visible in the running-config:

aaa authentication dot1x default group radius

If 802.1X is not configured on necessary ports, or is not globally enabled on the switch, or if it is not set to authenticate supplicants via RADIUS, this is a finding.

Vulnerability Number

V-60825

Documentable

False

Rule Version

AMLS-L2-000130

Severity Override Guidance

Verify that the network device uniquely identifies network-connected endpoint devices. This requirement is not applicable to Arista switches when not used as an access switch.

802.1X must be configured on any interface where there is an applicable endpoint device connected. This is demonstrated by viewing the running-config via the "show dot1x all" command and validating the following lines are present in the configuration:

Dot1X Information for Ethernet[X]
--------------------------------------------
PortControl : auto
HostMode : single-host
QuietPeriod : [value]
TxPeriod : [value]
ReauthPeriod : 3600 seconds
MaxReauthReq : 2

!

802.1X must also be globally enabled on the switch using the "dot1x system-auth-control" command from the configuration mode interface. When this is configured, the following line will be visible in the running-config:

dot1x-system-auth-control

802.1X is dependent on a properly configured RADIUS server for authentication. Refer to the RADIUS configuration example for validation of properly configured AAA services. Additionally, the user must specify to use the RADIUS server as an 802.1X authenticator with the "aaa authentication dot1x default group [radius]" command from the configuration mode interface, replacing the bracketed variable with either the group name of the RADIUS server group, or leaving it as is to authenticate against all RADIUS servers. When properly configured, the following line is visible in the running-config:

aaa authentication dot1x default group radius

If 802.1X is not configured on necessary ports, or is not globally enabled on the switch, or if it is not set to authenticate supplicants via RADIUS, this is a finding.

Check Content Reference

M

Target Key

2821

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