STIGQter: STIG Summary: Amazon Linux 2023 Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 01 Jul 2026:

Amazon Linux 2023 must prevent files with the setuid and setgid bit set from being executed on the /boot/efi directory.

DISA Rule

SV-274178r1120522_rule

Vulnerability Number

V-274178

Group Title

SRG-OS-000368-GPOS-00154

Rule Version

AZLX-23-002580

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

Configure Amazon Linux 2023 so that the /boot/efi directory is mounted with the "nosuid" option.

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

Check Contents

Verify Amazon Linux 2023 is configured so that the /boot/efi directory is mounted with the "nosuid" option with the following command:

$ mount | grep '\s/boot/efi\s'

/dev/sda1 on /boot/efi type vfat (rw,nosuid,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=ascii,shortname=winnt,errors=remount-ro)

If the /boot/efi file system does not have the "nosuid" option set, this is a finding.

Vulnerability Number

V-274178

Documentable

False

Rule Version

AZLX-23-002580

Severity Override Guidance

Verify Amazon Linux 2023 is configured so that the /boot/efi directory is mounted with the "nosuid" option with the following command:

$ mount | grep '\s/boot/efi\s'

/dev/sda1 on /boot/efi type vfat (rw,nosuid,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=ascii,shortname=winnt,errors=remount-ro)

If the /boot/efi file system does not have the "nosuid" option set, this is a finding.

Check Content Reference

M

Target Key

5700