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CA-ACF2 PSWD GSO record value must be set to limit three consecutive invalid logon attempts by a user during a 15-minute time period.


Overview

Finding ID Version Rule ID IA Controls Severity
V-97619 ACF2-ES-000420 SV-106723r1_rule Medium
Description
By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account.
STIG Date
IBM z/OS ACF2 Security Technical Implementation Guide 2020-06-29

Details

Check Text ( C-96453r1_chk )
From the ISPF Command Shell to enter the ACF2 Command Shell enter:
ACF

Enter:
SHOW STATE

If "MAXTRY = 3", this is not a finding.
Fix Text (F-103295r1_fix)
Configure the GSO option "MAXTRY" to equal "3".