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V-279633

CAT II (Medium)

Nutanix OS must remove all software components after updated versions have been installed.

Rule ID

SV-279633r1192521_rule

STIG

Nutanix Acropolis GPOS Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-002617

Discussion

Previous versions of software components that are not removed from the information system after updates have been installed may be exploited by adversaries. Some information technology products may remove older versions of software automatically from the information system.

Check Content

Verify Nutanix OS removes all software components after updated versions have been installed using the following command.

$ sudo grep -i clean_requirements_on_remove /etc/yum.conf
clean_requirements_on_remove=1

If "clean_requirements_on_remove" is not set to "1", "True", or "yes", or is not set in "/etc/yum.conf", this is a finding.

Fix Text

Configure Yum settings to remove all software components after an updated version is installed.

1. Configure AOS Yum settings using the following command.

$ sudo salt-call state.sls security/CVM/yumCVM

2. Configure Prism Central Yum settings using the following command.

$ sudo salt-call state.sls security/PCVM/yumPCVM

3. Configure Files Yum settings using the following command.

$ sudo salt-call state.sls security/AFS/yumAFS

4. Configure AHV Yum settings using the following command.

$ sudo salt-call state.sls security/KVM/yumKVM