The CA-ACF2 PSWD GSO record values for MAXTRY and PASSLMT must be properly set.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223462 | ACF2-ES-000430 | SV-223462r958736_rule | CCI-002238 | medium |
| Description | ||||
| By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. | ||||
| STIG | Date | |||
| IBM z/OS ACF2 Security Technical Implementation Guide | 2025-06-24 | |||
Details
Check Text (C-223462r958736_chk)
From an ACF command screen enter:
SET CONTROL(GSO)
SHOW PSwdopts
If "MAXTRY" is set to "3", this is not a finding.
If "PASSLMT" is set to "3", this is not a finding.
Fix Text (F-25123r500519_fix)
Configure the GSO option "MAXTRY" to equal "3".
Configure the GSO option "PASSLMT" to equal "3".