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

Amazon Linux 2023 must check the GPG signature of software packages originating from external software repositories before installation.

DISA Rule

SV-273997r1119979_rule

Vulnerability Number

V-273997

Group Title

SRG-OS-000366-GPOS-00153

Rule Version

AZLX-23-000120

Severity

CAT I

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

Fix Recommendation

Configure Amazon Linux 2023 to always check the GPG signature of software packages originating from external software repositories before installation.

Add or update the following line in the [main] section of the /etc/dnf/dnf.conf file:

gpgcheck=1

Check Contents

Verify Amazon Linux 2023 is configured so that dnf always checks the GPG signature of software packages originating from external software repositories before installation:

$ grep -w gpgcheck /etc/dnf/dnf.conf
gpgcheck=1

If "gpgcheck" is not set to "1" or "True", or if the option is missing or commented out, ask the system administrator how the GPG signatures of software packages are being verified.

If there is no process to verify GPG signatures approved by the organization, this is a finding.

Vulnerability Number

V-273997

Documentable

False

Rule Version

AZLX-23-000120

Severity Override Guidance

Check Content Reference

Target Key

5700