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


Overview

Finding ID Version Rule ID IA Controls Severity
V-223868 RACF-UT-000050 SV-223868r533199_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.
STIG Date
IBM z/OS RACF Security Technical Implementation Guide 2020-10-09

Details

Check Text ( C-25541r515292_chk )
From the ISPF Command Shell enter:
ISHELL

Enter /etc/ for a pathname - you may need to issue a CD /etc/
select FILE NAME inetd.conf

If Option -h is included on the otelnetd command, this is a finding.
Fix Text (F-25529r515293_fix)
Configure the startup parameters in the inetd.conf file for otelnetd to exclude option -h.
Note: -h indicates that the logon banner should not be displayed.