STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must check the GPG signature of software packages originating from external software repositories before installation.

DISA Rule

SV-271524r1091284_rule

Vulnerability Number

V-271524

Group Title

SRG-OS-000366-GPOS-00153

Rule Version

OL09-00-000497

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 dnf 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 that OL 9 dnf package manager always checks the GPG signature of software packages originating from external software repositories before installation:

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

If "gpgcheck" is not set to "1", 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 that is approved by the organization, this is a finding.

Vulnerability Number

V-271524

Documentable

False

Rule Version

OL09-00-000497

Severity Override Guidance

Check Content Reference

Target Key

5680