Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor.
All software packages must be signed with a cryptographic key recognized and approved by the organization.
Verifying the authenticity of software prior to installation validates the integrity of the software package received from a vendor.
Check
Verify RHEL 10 dnf always checks the GPG signature of locally installed software packages before installation with the following command:
If "localpkg_gpgcheck" is not set to "1", or if the option is missing or commented out, ask the system administrator how the GPG signatures of local software packages are being verified.
If no process to verify GPG signatures has been approved by the organization, this is a finding.
Fix
Configure RHEL 10 dnf to always check the GPG signature of local software packages before installation.
Add or update the following line in the [main] section of the "/etc/dnf/dnf.conf" file: