The IBM z/OS UNIX Telnet server warning banner must be properly specified.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-224103	TSS0-UT-000050	SV-224103r864513_rule		Medium

Description
Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.

Description

Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.

STIG	Date
IBM z/OS TSS Security Technical Implementation Guide	2022-09-19

Details

Check Text ( C-25776r516708_chk )
From the ISPF Command Shell enter: OMVS cat inetd.conf If the otelnet startup command includes option "-h" this is a finding.

Fix Text (F-25764r516709_fix)
The otelnetd startup command should not include the option "-h", where: -h indicates that the logon banner should not be displayed.