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V-255587

CAT II (Medium)

The A10 Networks ADC must limit the number of concurrent sessions to one (1) for each administrator account and/or administrator account type.

Rule ID

SV-255587r960735_rule

STIG

A10 Networks ADC NDM Security Technical Implementation Guide

Version

V1R2

CCIs

CCI-000054

Discussion

Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator is helpful in limiting risks related to DoS attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system.

Check Content

Review the device configuration.

The following command shows the configuration with an output modifier to display only the phrase "multiple-auth-reject":
show run | inc  multiple-auth-reject

If the output is blank, this is a finding.

Fix Text

The following command disables concurrent logons for any administrative account:
authentication multiple-auth-reject