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

Amazon Linux 2023 must prevent the loading of a new kernel for later execution.

DISA Rule

SV-274177r1120519_rule

Vulnerability Number

V-274177

Group Title

SRG-OS-000366-GPOS-00153

Rule Version

AZLX-23-002575

Severity

CAT II

CCI(s)

• CCI-003992 - Prevent the installation of organization-defined software and firmware components without verification that the component has been digitally signed using a certificate that is recognized and approved by the organization.

Weight

10

Fix Recommendation

Configure Amazon Linux 2023 to disable kernel image loading.

Add or edit the following line in a system configuration file in the "/etc/sysctl.d/" directory:

kernel.kexec_load_disabled = 1

Load settings from all system configuration files with the following command:

$ sudo sysctl --system

Check Contents

Verify Amazon Linux 2023 is configured to disable kernel image loading.

Check the status of the kernel.kexec_load_disabled kernel parameter with the following command:

$ sudo sysctl kernel.kexec_load_disabled
kernel.kexec_load_disabled = 1

If "kernel.kexec_load_disabled" is not set to "1" or is missing, this is a finding.

Vulnerability Number

V-274177

Documentable

False

Rule Version

AZLX-23-002575

Severity Override Guidance

Verify Amazon Linux 2023 is configured to disable kernel image loading.

Check the status of the kernel.kexec_load_disabled kernel parameter with the following command:

$ sudo sysctl kernel.kexec_load_disabled
kernel.kexec_load_disabled = 1

If "kernel.kexec_load_disabled" is not set to "1" or is missing, this is a finding.

Check Content Reference

M

Target Key

5700