The IBM z/OS systems requiring data at rest protection must properly employ IBM DS8880 for full disk encryption.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-224028	TSS0-OS-000320	SV-224028r561402_rule		Medium

Description
Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection of a cryptographic mechanism is based on the need to protect the integrity of organizational information. The strength of the mechanism is commensurate with the security category and/or classification of the information. Organizations have the flexibility to either encrypt all information on storage devices (i.e., full disk encryption) or encrypt specific data structures (e.g., files, records, or fields). Satisfies: SRG-OS-000404-GPOS-00183, SRG-OS-000405-GPOS-00184

Description

Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection of a cryptographic mechanism is based on the need to protect the integrity of organizational information. The strength of the mechanism is commensurate with the security category and/or classification of the information. Organizations have the flexibility to either encrypt all information on storage devices (i.e., full disk encryption) or encrypt specific data structures (e.g., files, records, or fields). Satisfies: SRG-OS-000404-GPOS-00183, SRG-OS-000405-GPOS-00184

STIG	Date
IBM z/OS TSS Security Technical Implementation Guide	2021-03-30

Details

Check Text ( C-25701r516483_chk )
Determine if IBM's DS880 Disks are in use. If IBMs DS880 Disks are not in use for systems that require "data at rest", this is a finding.

Fix Text (F-25689r516484_fix)
Employ IBM's DS8880 hardware to ensure full disk encryption.