STIGQter: STIG Summary: VMware vSphere 6.5 ESXi Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 22 Jan 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-207657r388482_rule

Vulnerability Number

V-207657

Group Title

SRG-OS-000480-VMM-002000

Rule Version

ESXI-65-000058

Severity

CAT III

CCI(s)

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

Weight

10

Fix Recommendation

From the vSphere Web Client select the ESXi Host and go to Configure >> System >> Advanced System Settings. Click Edit and 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 Web 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-207657

Documentable

False

Rule Version

ESXI-65-000058

Severity Override Guidance

From the vSphere Web 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

2925

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