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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22588	GEN008800	SV-63027r1_rule	ECSC-1	Low

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

STIG	Date
Oracle Linux 5 Security Technical Implementation Guide	2015-03-26

Details

Check Text ( C-51821r1_chk )
Verify RPM signature validation is not disabled. # grep nosignature /etc/rpmrc /usr/lib/rpm/rpmrc /usr/lib/rpm/redhat/rpmrc ~root/.rpmrc If any configuration is found, this is a finding. Verify YUM signature validation is not disabled. # grep gpgcheck /etc/yum.conf /etc/yum.repos.d/* If any "gpgcheck" setting is returned that is not equal to "1", this is a finding.

Fix Text (F-53631r1_fix)
Edit the RPM configuration file containing the "nosignature" option and remove the option. Edit the YUM configuration containing "gpgcheck=0" and set the value to "1".