STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 must mount /tmp with the nosuid option.

DISA Rule

SV-257868r958804_rule

Vulnerability Number

V-257868

Group Title

SRG-OS-000368-GPOS-00154

Rule Version

RHEL-09-231135

Severity

CAT II

CCI(s)

• CCI-001764 - Prevent program execution in accordance with organization-defined policies, rules of behavior, and/or access agreements regarding software program usage and restrictions; rules authorizing the terms and conditions of software program usage.

Weight

10

Fix Recommendation

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

Check Contents

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

$ mount | grep /tmp

/dev/mapper/rhel-tmp on /tmp type xfs (rw,nodev,nosuid,noexec,seclabel)

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

Vulnerability Number

V-257868

Documentable

False

Rule Version

RHEL-09-231135

Severity Override Guidance

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

$ mount | grep /tmp

/dev/mapper/rhel-tmp on /tmp type xfs (rw,nodev,nosuid,noexec,seclabel)

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

Check Content Reference

M

Target Key

5551