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ACF2 PSWD GSO record value must be set to require 24 hours/1 day as the minimum password lifetime.


Overview

Finding ID Version Rule ID IA Controls Severity
V-223507 ACF2-ES-000900 SV-223507r695439_rule Medium
Description
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.
STIG Date
IBM z/OS ACF2 Security Technical Implementation Guide 2022-06-22

Details

Check Text ( C-25180r695438_chk )
From an ACF command screen enter:
SET CONTROL(GSO)
LIST PSWD

If "PSWDMIN" is set "1", this is not a finding.
Fix Text (F-25168r500655_fix)
Configure Password option "PSWDMIN" to minimum of "1" day.