STIGQter: STIG Summary: VMW vSphere 6.5 vCenter Server for Windows Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 22 Jan 2021:

The vCenter Server for Windows must set the distributed port group Forged Transmits policy to reject.

DISA Rule

SV-216835r612237_rule

Vulnerability Number

V-216835

Group Title

SRG-APP-000516

Rule Version

VCWN-65-000013

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

From the vSphere Web Client go to Networking >> Select a distributed switch >> Select a port group >> Configure >> Settings >> Policies >> Edit >> Security. 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

From the vSphere Web 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 non-uplink port, this is a finding.

Vulnerability Number

V-216835

Documentable

False

Rule Version

VCWN-65-000013

Severity Override Guidance

From the vSphere Web 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 non-uplink port, this is a finding.

Check Content Reference

M

Target Key

4030

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