AOS must enforce a minimum 15-character password length.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-266931	SRG-APP-000164-NDM-000252	ARBA-ND-000252	SV-266931r1039814_rule	2024-10-29	1

Description
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a password. The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised. Use of more characters in a password helps to exponentially increase the time and/or resources required to compromise the password.

Description

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

ℹ️ Check
Verify the AOS configuration with the following command: show aaa password-policy mgmt If "Minimum password length required" is not set to "15 characters", this is a finding.

✔️ Fix
Configure AOS with the following commands: configure terminal aaa password-policy mgmt password-min-length 15 exit write memory