Details

Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that needs to be tested before the password is compromised.

Typically, the account of last resort is a built-in account with full privileges to the network device. This account should only be used when the authentication mechanism is unreachable and configuration or maintenance actions must be taken.

Solution

Configure the Arista Multilayer Switch account of last resort with a password with a length of at least 15 characters.

To configure the password minimum length, enter the following commands:

configure
management security
password minimum length 15

Supportive Information

The following resource is also helpful.

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

This security hardening control applies to the following category of controls within NIST 800-53: Identification and Authentication.This control applies to the following type of system Arista.

References

• 800-53|IA-5(1)(a)
• CAT|II
• CCI|CCI-000205
• Group-ID|V-60833
• Rule-ID|SV-75289r1_rule
• STIG-ID|AMLS-NM-000110
• Vuln-ID|V-60833

Source

• Tenable.com/audits