Title

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

Discussion

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.

Check Content

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

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.

Additional Identifiers

Rule ID: SV-30056r2_rule

Vulnerability ID: V-24381

Group Title: HLP0040

Expert Comments

CCIs tied to check.

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