STIGQter: STIG Summary: VMware vSphere 6.7 ESXi Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 09 Mar 2021:

The ESXi host must configure NTP time synchronization.

DISA Rule

SV-239301r674832_rule

Vulnerability Number

V-239301

Group Title

SRG-OS-000355-VMM-001330

Rule Version

ESXI-67-000046

Severity

CAT II

CCI(s)

• CCI-001891 - The information system compares internal information system clocks on an organization-defined frequency with an organization-defined authoritative time source.
• CCI-002046 - The information system synchronizes the internal system clocks to the authoritative time source when the time difference is greater than the organization-defined time period.

Weight

10

Fix Recommendation

From the vSphere Client, select the ESXi host and go to Configure >> System >> Time Configuration.

Click "Edit" to configure the NTP service to start and stop with the host and with authoritative DoD time sources.

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

$NTPServers = "ntpserver1","ntpserver2"
Get-VMHost | Add-VMHostNTPServer $NTPServers
Get-VMHost | Get-VMHostService | Where {$_.Label -eq "NTP Daemon"} | Set-VMHostService -Policy On
Get-VMHost | Get-VMHostService | Where {$_.Label -eq "NTP Daemon"} | Start-VMHostService

Check Contents

From the vSphere Client, select the ESXi host and go to Configure >> System >> Time Configuration.

Click "Edit" to verify the configured NTP servers and service startup policy.

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VMHost | Get-VMHostNTPServer
Get-VMHost | Get-VMHostService | Where {$_.Label -eq "NTP Daemon"}

If the NTP service is not configured with authoritative DoD time sources or the service does not have a "Policy" of "on" or is stopped, this is a finding.

Vulnerability Number

V-239301

Documentable

False

Rule Version

ESXI-67-000046

Severity Override Guidance

From the vSphere Client, select the ESXi host and go to Configure >> System >> Time Configuration.

Click "Edit" to verify the configured NTP servers and service startup policy.

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VMHost | Get-VMHostNTPServer
Get-VMHost | Get-VMHostService | Where {$_.Label -eq "NTP Daemon"}

If the NTP service is not configured with authoritative DoD time sources or the service does not have a "Policy" of "on" or is stopped, this is a finding.

Check Content Reference

M

Target Key

5326

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