z/OS CSSMTP for TSS Security Technical Implementation Guide

This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.

Date: 2022-10-10Version: 6
Description
V-224666mediumIBM Communications Server Simple Mail Transfer Protocol (CSSMTP) STC data sets must be properly protected.IBM Communications Server Simple Mail Transfer Protocol (CSSMTP) STC data sets have the ability to use privileged functions and/or have access to sensitive data. Failure to properly restrict access to their data sets could result in violating the integrity of the base product which could result in compromising the operating system or sensitive data.
V-224667mediumIBM CSSMTP Started Task name is not properly identified and/or defined to the system ACP.IBM CSSMTP requires a started task that will be restricted to certain resources, datasets and other system functions. By defining the started task as a userid to the system ACP, It allows the ACP to control the access and authorized users that require these capabilities. Failure to properly control these capabilities, could compromise of the operating system environment, ACP, and customer data.
V-224668mediumIBM CSSMTP Started task(s) must be properly defined to the Started Task Table ACID for Top Secret.Access to product resources should be restricted to only those individuals responsible for the application connectivity and who have a requirement to access these resources. Improper control of product resources could potentially compromise the operating system, ACP, and customer data.