The vCenter Server must enable TLS 1.2 exclusively.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-243112	VCTR-67-000057	SV-243112r719579_rule		Medium

Description
TLS 1.0 and 1.1 are deprecated protocols with well published shortcomings and vulnerabilities. TLS 1.2 should be disabled on all interfaces and TLS 1.1 and 1.0 disabled where supported. Mandating TLS 1.2 may break third party integrations and add-ons to vSphere. Test these integrations carefully after implementing TLS 1.2 and roll back where appropriate. On interfaces where required functionality is broken with TLS 1.2 this finding is N/A until such time as the third party software supports TLS 1.2. Make sure you modify TLS settings in the following order: 1. Platform Services Controls (if applicable), 2. vCenter, 3. ESXi

Description

TLS 1.0 and 1.1 are deprecated protocols with well published shortcomings and vulnerabilities. TLS 1.2 should be disabled on all interfaces and TLS 1.1 and 1.0 disabled where supported. Mandating TLS 1.2 may break third party integrations and add-ons to vSphere. Test these integrations carefully after implementing TLS 1.2 and roll back where appropriate. On interfaces where required functionality is broken with TLS 1.2 this finding is N/A until such time as the third party software supports TLS 1.2. Make sure you modify TLS settings in the following order: 1. Platform Services Controls (if applicable), 2. vCenter, 3. ESXi

STIG	Date
VMware vSphere 6.7 vCenter Security Technical Implementation Guide	2021-04-16

Details

Check Text ( C-46387r719577_chk )
Note: For vCenter Server Windows, this is not applicable. On the vCenter Server, execute the following command: # /usr/lib/vmware-TlsReconfigurator/VcTlsReconfigurator scan If the output indicates versions of TLS other than 1.2 are enabled, this is a finding.

Fix Text (F-46344r719578_fix)
On the vCenter Server, execute the following commands: # /usr/lib/vmware-vSphereTlsReconfigurator/VcTlsReconfigurator/reconfigureVc backup # /usr/lib/vmware-vSphereTlsReconfigurator/VcTlsReconfigurator/reconfigureVc update -p TLS1.2 vCenter services will be restarted as part of the reconfiguration, the OS will not be restarted. You can add the --no-restart flag to restart services at a later time. Changes will not take effect until all services are restarted or the machine is rebooted.

Fix Text (F-46344r719578_fix)

On the vCenter Server, execute the following commands:

# /usr/lib/vmware-vSphereTlsReconfigurator/VcTlsReconfigurator/reconfigureVc backup
# /usr/lib/vmware-vSphereTlsReconfigurator/VcTlsReconfigurator/reconfigureVc update -p TLS1.2

vCenter services will be restarted as part of the reconfiguration, the OS will not be restarted. You can add the --no-restart flag to restart services at a later time. Changes will not take effect until all services are restarted or the machine is rebooted.