The IBM z/VM Privilege Classes C and E must be restricted to appropriate system administrators.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-237954	IBMZ-VM-001190	SV-237954r853071_rule		Medium

Description
Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users.

Description

Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users.

STIG	Date
IBM zVM Using CA VM:Secure Security Technical Implementation Guide	2022-08-31

Details

Check Text ( C-41164r649700_chk )
Examine user directory definitions to determine privilege class. If the CP privilege Class C is assigned to system programmers only, this is not a finding. If the CP privilege Class E is assigned to system analyst only, this is not a finding.

Fix Text (F-41123r649701_fix)
Configure the CP Privilege Class. Assign CP Privilege Classes, C and E, to system programmers and/or system analysts only.