STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

All OL 8 local disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at-rest protection.

DISA Rule

SV-248525r1016496_rule

Vulnerability Number

V-248525

Group Title

SRG-OS-000185-GPOS-00079

Rule Version

OL08-00-010030

Severity

CAT I

CCI(s)

• CCI-001199 - Protects the confidentiality and/or integrity of organization-defined information at rest.
• CCI-002475 - Implement cryptographic mechanisms to prevent unauthorized modification of organization-defined information when at rest on organization-defined system components.
• CCI-002476 - Implement cryptographic mechanisms to prevent unauthorized disclosure of organization-defined information at rest on organization-defined system components.

Weight

10

Fix Recommendation

Configure OL 8 to prevent unauthorized modification of all information at rest by using disk encryption.

Encrypting a partition in an already-installed system is more difficult because existing partitions will need to be resized and changed.

To encrypt an entire partition, dedicate a partition for encryption in the partition layout.

Check Contents

Verify OL 8 prevents unauthorized disclosure or modification of all information requiring at-rest protection by using disk encryption.

If there is a documented and approved reason for not having data-at-rest encryption at the operating system level, such as encryption provided by a hypervisor or a disk storage array in a virtualized environment, this requirement is not applicable.

Verify all system partitions are encrypted with the following command:

$ sudo blkid

/dev/mapper/ol-root: UUID="67b7d7fe-de60-6fd0-befb-e6748cf97743" TYPE="crypto_LUKS"

Every persistent disk partition present must be of type "crypto_LUKS".

If any partitions other than the boot partition or pseudo file systems (such as "/proc" or "/sys") are not listed, ask the administrator to indicate how the partitions are encrypted. If there is no evidence that these partitions are encrypted, this is a finding.

Vulnerability Number

V-248525

Documentable

False

Rule Version

OL08-00-010030

Severity Override Guidance

Verify OL 8 prevents unauthorized disclosure or modification of all information requiring at-rest protection by using disk encryption.

If there is a documented and approved reason for not having data-at-rest encryption at the operating system level, such as encryption provided by a hypervisor or a disk storage array in a virtualized environment, this requirement is not applicable.

Verify all system partitions are encrypted with the following command:

$ sudo blkid

/dev/mapper/ol-root: UUID="67b7d7fe-de60-6fd0-befb-e6748cf97743" TYPE="crypto_LUKS"

Every persistent disk partition present must be of type "crypto_LUKS".

If any partitions other than the boot partition or pseudo file systems (such as "/proc" or "/sys") are not listed, ask the administrator to indicate how the partitions are encrypted. If there is no evidence that these partitions are encrypted, this is a finding.

Check Content Reference

M

Target Key

5416