The CA-TSS PWHIST Control Option must be set to 10 or greater.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-98487	TSS0-ES-000170	SV-107591r1_rule		Medium

Description
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements.

STIG	Date
IBM z/OS TSS Security Technical Implementation Guide	2020-06-29

Details

Check Text ( C-97323r1_chk )
From the ISPF Command Shell enter: TSS MODIFY STATUS If the PWHIST Control Option value is not set to PWHIST(10) or greater, this is a finding.

Fix Text (F-104163r1_fix)
Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the following control option setting as specified and proceed with the change. PWHIST(10) or greater