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V-223462

CAT II (Medium)

The CA-ACF2 PSWD GSO record values for MAXTRY and PASSLMT must be properly set.

Rule ID

SV-223462r958736_rule

STIG

IBM z/OS ACF2 Security Technical Implementation Guide

Version

V9R8

CCIs

CCI-002238

Discussion

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.

Check Content

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

Configure the GSO option "MAXTRY" to equal "3".
Configure the GSO option "PASSLMT" to equal "3".