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

RHEL 9 must prevent files with the setuid and setgid bit set from being executed on file systems that are used with removable media.

DISA Rule

SV-257859r991589_rule

Vulnerability Number

V-257859

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

RHEL-09-231090

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the "/etc/fstab" to use the "nosuid" option on file systems that are associated with removable media.

Check Contents

Verify file systems that are used for removable media are mounted with the "nosuid" option with the following command:

$ more /etc/fstab

UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid,nodev,noexec 0 0

If a file system found in "/etc/fstab" refers to removable media and it does not have the "nosuid" option set, this is a finding.

Vulnerability Number

V-257859

Documentable

False

Rule Version

RHEL-09-231090

Severity Override Guidance

Verify file systems that are used for removable media are mounted with the "nosuid" option with the following command:

$ more /etc/fstab

UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid,nodev,noexec 0 0

If a file system found in "/etc/fstab" refers to removable media and it does not have the "nosuid" option set, this is a finding.

Check Content Reference

M

Target Key

5551