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

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-251108TSS0-OS-000320SV-251108r1028298_ruleCCI-002476high
Description
This control addresses the confidentiality and integrity of information at rest and covers user information and system information. Information at rest refers to the state of information when it is located on storage devices as specific components of information systems. 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). Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated. Satisfies: SRG-OS-000185-GPOS-00079, SRG-OS-000405-GPOS-00184, SRG-OS-000404-GPOS-00183, SRG-OS-000396-GPOS-00176
STIGDate
IBM z/OS TSS Security Technical Implementation Guide2026-03-09

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

BCD-11.4Cryptographic Protection
0.50
CRY-04Transmission Integrity
0.50
CRY-05Encrypting Data At Rest
0.50
DCH-07.2Encrypting Data In Storage Media
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (18) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-3Access Enforcement
1.00
AU-1Policy and Procedures
1.00
CM-5(6)Limit Library Privileges
1.00
CM-6Configuration Settings
1.00
IA-5(1)Password-based Authentication
1.00
IA-7Cryptographic Module Authentication
1.00
SC-12(2)Symmetric Keys
1.00
SC-12(3)Asymmetric Keys
1.00
SC-13Cryptographic Protection
1.00

+8 more (top 10 by confidence shown)

CCI1 mapping
CCI-002476
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 4 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.DS-01
0.50
PR.DS-02
0.50

Details

Check Text (C-251108r1028298_chk)

Determine if IBM's DS880 Disks or equivalent hardware solutions are in use. If IBMs DS880 Disks or equivalent hardware solutions are not in use for systems that require "data at rest", this is a finding.

Fix Text (F-54497r804054_fix)

Employ IBM's DS8880 hardware or equivalent hardware solutions to ensure full disk encryption.