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The system must use a separate file system for /tmp.


Finding ID Version Rule ID IA Controls Severity
V-217846 RHEL-06-000001 SV-217846r505923_rule Low
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 which use it.
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2020-09-03


Check Text ( C-19327r376553_chk )
Run the following command to determine if "/tmp" is on its own partition or logical volume:

$ mount | grep "on /tmp "

If "/tmp" has its own partition or volume group, a line will be returned.
If no line is returned, this is a finding.
Fix Text (F-19325r376554_fix)
The "/tmp" directory is a world-writable directory used for temporary file storage. Ensure it has its own partition or logical volume at installation time, or migrate it using LVM.