STIGUI
V-271654CAT II — Medium severitySV-271654r1091674_rule

OL 9 must mount /tmp with the noexec option.

Rule version OL09-00-002051 · STIG v1 · 2026-08-21

Discussion

The "noexec" mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files, as they may be incompatible. Executing files from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access.

Check

Verify that OL 9 is configured to mount /tmp with the noexec option.

Verify "/tmp" is mounted with the "noexec" option:

$ mount | grep /tmp /dev/mapper/ol-tmp on /tmp type xfs (rw,nodev,nosuid,noexec,seclabel)

If the "/tmp" file system is mounted without the "noexec" option, this is a finding.

Fix

Configure OL 9 to mount /tmp with the noexec option.

Modify "/etc/fstab" to use the "noexec" option on the "/tmp" directory.

Identifiers

Group ID
V-271654
Group title
SRG-OS-000368-GPOS-00154
Rule ID
SV-271654r1091674_rule
Check ID
C-75704r1091672_chk
Fix ID
F-75611r1091673_fix