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

Documentable No

Rule ID SV-257845r1044920_rule

CCI References

CCI-000366

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.

Check Procedure

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.

Fix Action

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