Check: ACF2-ES-000900
IBM z/OS ACF2 STIG:
ACF2-ES-000900
(in versions v9 r2 through v8 r2)
Title
ACF2 PSWD GSO record value must be set to require 24 hours/one day as the minimum password lifetime. (Cat II impact)
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.
Additional Identifiers
Rule ID: SV-223507r1001117_rule
Vulnerability ID: V-223507
Group Title: SRG-OS-000075-GPOS-00043
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000198 |
The information system enforces minimum password lifetime restrictions. |
| CCI-004066 |
For password-based authentication, enforce organization-defined composition and complexity rules. |
Controls
| Number | Title |
|---|---|
| IA-5(1) |
Password-based Authentication |