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V-252195

CAT II (Medium)

The HPE Nimble must require that when a password is changed, the characters are changed in at least eight of the positions within the password.

Rule ID

SV-252195r997779_rule

STIG

HPE Nimble Storage Array NDM Security Technical Implementation Guide

Version

V2R1

CCIs

CCI-004066

Discussion

If the application allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different. Multifactor authentication (MFA) is required for all administrative and user accounts on network devices, except for an account of last resort and (where applicable) a root account. Passwords should only be used when MFA using PKI is not available, and for the account of last resort and root account.

Check Content

Type "userpolicy --info" and review output for line: "Minimum number of characters change from previous password". 

If it is 8 or more, this is not a finding.

Fix Text

Set minimum number of characters changed from previous password to 8 by typing "userpolicy --edit --previous_diff 8".