The CA-TSS PWEXP Control Option must be set to 60.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-223888	TSS0-ES-000150	SV-223888r1038967_rule		Medium

Description

Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the operating system passwords could be compromised.

STIG	Date
IBM z/OS TSS Security Technical Implementation Guide	2024-12-05

Details

Check Text (C-25561r516063_chk)

From the ISPF Command Shell enter:
TSS MODIFY STATUS

If the PWEXP Control Option value is not set to PWEXP(60), this is a finding.

Fix Text (F-25549r516064_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.

PWEXP(60)