Classified Logical Partition (LPAR) channel paths must be restricted.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256865	HLP0040	SV-256865r958472_rule		High

Description

Restricted LPAR channel paths are necessary to ensure data integrity. Unrestricted LPAR channel path access could result in a compromise of data integrity. When a classified LPAR exists on a mainframe which requires total isolation, all paths to that LPAR must be restricted.

STIG	Date
IBM Hardware Management Console (HMC) Security Technical Implementation Guide	2024-06-24

Details

Check Text (C-60540r890939_chk)

Have the System Administrator or Systems Programmer on classified systems use the Hardware Management Console to verify that the LPAR channel paths are reserved from the rest of the LPARs.

Use the Security Definitions Panel to verify this. The Logical Partition Isolation option must be turned on.

If the Classified LPAR channel paths are not restricted then this is a FINDING.

Fix Text (F-60483r890940_fix)

Have the System Administrator or Systems Programmer for classified systems use the Hardware Management Console to verify that the LPAR channel paths are reserved from the rest of the LPARs. Use the Security Definitions Panel to verify this. The Logical Partition Isolation option must be turned on for classified systems.