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

The virtual switch MAC Address Change policy must be set to reject on the ESXi host.

DISA Rule

SV-239314r674871_rule

Vulnerability Number

V-239314

Group Title

SRG-OS-000480-VMM-002000

Rule Version

ESXI-67-000060

Severity

CAT I

CCI(s)

Weight

10

Fix Recommendation

From the vSphere Client, go to Configure >> Networking >> Virtual Switches.

For each virtual switch and port group, click Edit settings (dots) and change "MAC Address Changes" to reject.

or

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

Get-VirtualSwitch | Get-SecurityPolicy | Set-SecurityPolicy -MacChanges $false
Get-VirtualPortGroup | Get-SecurityPolicy | Set-SecurityPolicy -MacChangesInherited $true

Check Contents

From the vSphere Client, go to Configure >> Networking >> Virtual Switches.

View the properties on each virtual switch and port group and verify "MAC Address Changes" is set to reject.

or

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

Get-VirtualSwitch | Get-SecurityPolicy
Get-VirtualPortGroup | Get-SecurityPolicy

If the "MAC Address Changes" policy is set to accept (or true, via PowerCLI), this is a finding.

Vulnerability Number

V-239314

Documentable

False

Rule Version

ESXI-67-000060

Severity Override Guidance

From the vSphere Client, go to Configure >> Networking >> Virtual Switches.

View the properties on each virtual switch and port group and verify "MAC Address Changes" is set to reject.

or

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

Get-VirtualSwitch | Get-SecurityPolicy
Get-VirtualPortGroup | Get-SecurityPolicy

If the "MAC Address Changes" policy is set to accept (or true, via PowerCLI), this is a finding.

Check Content Reference

M

Target Key

5326

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