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RHEL-09-231020 RHEL 9 must use a separate file system for /var.

DISA STIG library V2R10
All changes in this version
first version loaded CAT III

Maps to CM-6 via CCI-000366

Title

RHEL 9 must use a separate file system for /var.

Control

Verify that a separate file system/partition has been created for "/var" with the following command: $ mount | grep /var /dev/mapper/rootvg-varlv on /var type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota) Note: Options displayed for mount may differ. If a separate entry for "/var" is not in use, this is a finding.

Discussion

Ensuring that "/var" is mounted on its own partition enables the setting of more restrictive mount options. This helps protect system services such as daemons or other programs which use it. It is not uncommon for the "/var" directory to contain world-writable directories installed by other software packages.

Related controls

CCI-000366

Fix

Migrate the "/var" path onto a separate file system.