Title

RHEL 9 must use a separate file system for /var/tmp. (Cat II impact)

Discussion

The "/var/tmp" partition is used as temporary storage by many programs. Placing "/var/tmp" in its own partition enables the setting of more restrictive mount options, which can help protect programs that use it.

Check Content

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

Fix Text

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

Additional Identifiers

Rule ID: SV-257848r1044926_rule

Vulnerability ID: V-257848

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

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