ACF2 SECVOLS GSO record value must be set to VOLMASK(). Any local changes are justified and documented with the ISSO.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-223512	ACF2-ES-000950	SV-223512r695447_rule		Medium

Description
The SECVOLS record defines the DASD and tape volumes for which CA-ACF2 provides volume-level protection. Information at rest refers to the state of information when it is located on a secondary storage device (e.g., disk drive and tape drive, when used for backups) within an operating system. This requirement addresses protection of user-generated data, as well as operating system-specific configuration data. Organizations may choose to employ different mechanisms to achieve confidentiality and integrity protections, as appropriate, in accordance with the security category and/or classification of the information.

Description

The SECVOLS record defines the DASD and tape volumes for which CA-ACF2 provides volume-level protection. Information at rest refers to the state of information when it is located on a secondary storage device (e.g., disk drive and tape drive, when used for backups) within an operating system. This requirement addresses protection of user-generated data, as well as operating system-specific configuration data. Organizations may choose to employ different mechanisms to achieve confidentiality and integrity protections, as appropriate, in accordance with the security category and/or classification of the information.

STIG	Date
IBM z/OS ACF2 Security Technical Implementation Guide	2023-09-19

Details

Check Text ( C-25185r695446_chk )
From an ACF command screen enter: SET CONTROL(GSO) LIST SECVOLS If the GSO SECVOLS record values conform to the following requirements, this is not a finding. VOLMASK() NOTE: Local changes will be documented in writing with supporting documentation. If there is any deviation from the above requirements in the GSO SECVOLS record values, this is a finding.

Fix Text (F-25173r504607_fix)
Define the GSO SECVOLS record values to conform to the following requirements. VOLMASK() Example: SET C(GSO) INSERT SECVOLS VOLMASK() F ACF2,REFRESH(SECVOLS)