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RHEL-10-000540 RHEL 10 must use a separate file system for "/tmp".

DISA STIG library V1R3
All changes in this version
first version loaded CAT II

Maps to SC-5 via CCI-002385

Title

RHEL 10 must use a separate file system for "/tmp".

Control

Verify RHEL 10 uses a separate file system/partition for "/tmp" with the following command: $ mount | grep /tmp /dev/mapper/luks-2d7e1b45-73c4-4282-8838-15a897e0d04e on /tmp type xfs(rw,nodev,nosuid,noexec,seclabel) Note: Options displayed for mount may differ. If a separate entry for "/tmp" is not in use, this is a finding.

Discussion

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

Related controls

CCI-002385

Fix

Configure RHEL 10 to use a separate file system for temporary storage directories by migrating the "/tmp" path onto a separate file system.