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V-223507

CAT II (Medium)

ACF2 PSWD GSO record value must be set to require 24 hours/one day as the minimum password lifetime.

Rule ID

SV-223507r1001117_rule

STIG

IBM z/OS ACF2 Security Technical Implementation Guide

Version

V9R8

CCIs

CCI-004066

Discussion

Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, then the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse.

Check Content

From an ACF command screen enter:
SET CONTROL(GSO)
LIST PSWD

If "PSWDMIN" is set "1", this is not a finding.

Fix Text

Configure Password option "PSWDMIN" to minimum of "1" day.