Details

The gpgcheck option, found in the main section of the /etc/yum.conf and individual /etc/yum/repos.d/* files determines if an RPM package’s signature is checked prior to its installation.

Rationale:

It is important to ensure that an RPM’s package signature is always checked prior to installation to ensure that the software is obtained from a trusted source.

Solution

Edit /etc/yum.conf and set ‘ gpgcheck=1 in the [main] section.
Edit any failing files in /etc/yum.repos.d/*.repo and set all instances of gpgcheck to ‘ 1.

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/3148

This security hardening control applies to the following category of controls within NIST 800-53: System and Information Integrity.This control applies to the following type of system Unix.

References

• 800-53|SI-2c.
• CSCv6|4.5
• CSCv7|3.4
• CSCv7|3.5

Source

• Tenable.com/audits