IBM z/OS UNIX Telnet Server Startup parameters must be properly specified to display the banner.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-223643	ACF2-UT-000050	SV-223643r864509_rule		Medium

Description
Display of a standardized and approved use notification before granting access to the publicly accessible 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 publicly accessible 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 ACF2 Security Technical Implementation Guide	2023-06-16

Details

Check Text ( C-25316r501066_chk )
From the ISPF Command Shell enter: OMVS CD /etc cat inetd.config If "-h" is included on the otelnetd statement, this is a finding. ("-h" indicates that a banner will not be displayed.)

Fix Text (F-25304r501067_fix)
Configure the otelnetd startup command in the inetd.conf file to not include "-h".