Documentation - V-223601

Title

IBM z/OS TCP/IP resources must be properly protected.

Description

<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods that do not rely solely on the possession of a certificate for access. Successful authentication must not automatically give an entity access to an asset or security boundary. Authorization procedures and controls must be implem...

Fix Text (Documentation Requirement)

Develop a plan of action to implement the required changes. Ensure the following items are in effect for TCP/IP resources. (Note: The resource class, resources, and/or resource prefixes identified below are examples of a possible installation. The actual resource class, resources, and/or resource prefixes are determined when the product is actually installed on a system through the product's installation guide and can be site specific.) The SERVAUTH resource class is mapped to the required resource type SER. Ensure that the EZA, EZB, and IST resources are defined to the SERVAUTH resource class with a default access of PREVENT. If the product CSSMTP is on the system, no access is given to EZB.CSSMTP of the SERVAUTH resource class. EZB.CSSMTP.sysname.writername.JESnode will be specified ...