STIGQter: STIG Summary: VMware vSphere 8.0 vCenter Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 31 Oct 2023:

The vCenter Server must set the distributed port group Forged Transmits policy to "Reject".

DISA Rule

SV-258935r934463_rule

Vulnerability Number

V-258935

Group Title

SRG-APP-000516

Rule Version

VCSA-80-000268

Severity

CAT II

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

From the vSphere Client, go to "Networking".

Select a distributed switch >> Select a port group >> Configure >> Settings >> Policies.

Click "Edit".

Click the "Security" tab.

Set "Forged Transmits" to "Reject".

Click "OK".

or

From a PowerCLI command prompt while connected to the vCenter server, run the following commands:

Get-VDSwitch | Get-VDSecurityPolicy | Set-VDSecurityPolicy -ForgedTransmits $false
Get-VDPortgroup | ?{$_.IsUplink -eq $false} | Get-VDSecurityPolicy | Set-VDSecurityPolicy -ForgedTransmits $false

Check Contents

If distributed switches are not used, this is not applicable.

From the vSphere Client, go to "Networking".

Select a distributed switch >> Select a port group >> Configure >> Settings >> Policies.

Verify "Forged Transmits" is set to "Reject".

or

From a PowerCLI command prompt while connected to the vCenter server, run the following commands:

Get-VDSwitch | Get-VDSecurityPolicy
Get-VDPortgroup | ?{$_.IsUplink -eq $false} | Get-VDSecurityPolicy

If the "Forged Transmits" policy is set to accept for a nonuplink port, this is a finding.

Vulnerability Number

V-258935

Documentable

False

Rule Version

VCSA-80-000268

Severity Override Guidance

If distributed switches are not used, this is not applicable.

From the vSphere Client, go to "Networking".

Select a distributed switch >> Select a port group >> Configure >> Settings >> Policies.

Verify "Forged Transmits" is set to "Reject".

or

From a PowerCLI command prompt while connected to the vCenter server, run the following commands:

Get-VDSwitch | Get-VDSecurityPolicy
Get-VDPortgroup | ?{$_.IsUplink -eq $false} | Get-VDSecurityPolicy

If the "Forged Transmits" policy is set to accept for a nonuplink port, this is a finding.

Check Content Reference

M

Target Key

5573