The system package management tool must cryptographically verify the authenticity of software packages during installation.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000351

SV-63027r2_rule The system package management tool must cryptographically verify the authenticity of software packages during installation.

Vulnerability discussion

To prevent the installation of software from unauthorized sources, the system package management tool must use cryptographic algorithms to verify the packages are authentic.

Check content

Verify YUM signature validation is not disabled. # grep gpgcheck /etc/yum.conf /etc/yum.repos.d/* If no results are returned, or the returned “gpgcheck” settings are not equal to “1”, this is a finding.

Fix text

Edit the YUM configuration containing "gpgcheck=0" and set the value to "1".

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