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Check: TSS0-UT-000050

IBM z/OS TSS STIG: TSS0-UT-000050 (in versions v8 r13 through v7 r1)

Title

The IBM z/OS UNIX Telnet server warning banner must be properly specified. (Cat II impact)

Discussion

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.

Check Content

From the ISPF Command Shell enter: OMVS cat inetd.conf If the otelnet startup command includes option "-h" this is a finding.

Fix Text

The otelnetd startup command should not include the option "-h", where: -h indicates that the logon banner should not be displayed.

Additional Identifiers

Rule ID: SV-224103r877943_rule

Vulnerability ID: V-224103

Group Title: SRG-OS-000228-GPOS-00088

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-001384	The information system, for publicly accessible systems, displays system use information organization-defined conditions before granting further access.
CCI-001385	The information system, for publicly accessible systems, displays references, if any, to monitoring that are consistent with privacy accommodations for such systems that generally prohibit those activities.
CCI-001386	The information system, for publicly accessible systems, displays references, if any, to recording that are consistent with privacy accommodations for such systems that generally prohibit those activities.
CCI-001387	The information system, for publicly accessible systems, displays references, if any, to auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities.
CCI-001388	The information system, for publicly accessible systems, includes a description of the authorized uses of the system.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-8	System Use Notification