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 enable BPDU filter on the host to prevent being locked out of physical switch ports with Portfast and BPDU Guard enabled.

DISA Rule

SV-239312r674865_rule

Vulnerability Number

V-239312

Group Title

SRG-OS-000480-VMM-002000

Rule Version

ESXI-67-000058

Severity

CAT III

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

From the vSphere Client, select the ESXi host and go to Configure >> System >> Advanced System Settings.

Click "Edit", select the "Net.BlockGuestBPDU" value, and configure it to "1".

or

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

Get-VMHost | Get-AdvancedSetting -Name Net.BlockGuestBPDU | Set-AdvancedSetting -Value 1

Check Contents

From the vSphere Client, select the ESXi host and go to Configure >> System >> Advanced System Settings.

Select the "Net.BlockGuestBPDU" value and verify it is set to "1".

or

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

Get-VMHost | Get-AdvancedSetting -Name Net.BlockGuestBPDU

If the "Net.BlockGuestBPDU" setting is not set to "1", this is a finding.

Vulnerability Number

V-239312

Documentable

False

Rule Version

ESXI-67-000058

Severity Override Guidance

From the vSphere Client, select the ESXi host and go to Configure >> System >> Advanced System Settings.

Select the "Net.BlockGuestBPDU" value and verify it is set to "1".

or

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

Get-VMHost | Get-AdvancedSetting -Name Net.BlockGuestBPDU

If the "Net.BlockGuestBPDU" setting is not set to "1", this is a finding.

Check Content Reference

M

Target Key

5326

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