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V-255949

CAT II (Medium)

The Arista network device must be configured to enforce the limit of three consecutive invalid logon attempts, after which time it must block any login attempt for 15 minutes.

Rule ID

SV-255949r882189_rule

STIG

Arista MLS EOS 4.2x NDM Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-000044

Discussion

By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced.

Check Content

Verify the Arista device is configured to enforce the limit of three consecutive invalid logon attempts with the following command:

switch#show running-config | section aaa

aaa authentication policy lockout failure 3
duration 900

If the Arista device is not configured to enforce the limit of three consecutive invalid logon attempts, this is a finding.

Fix Text

Configure the account lockout policy using the following commands:

switch(config)#aaa authentication policy lockout failure 3
switch(config)#duration 900
switch(config)#exit