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The vCenter Server must not override port group settings at the port level on distributed switches.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-258966VCSA-80-000301SV-258966r961863_ruleCCI-000366medium
Description
Port-level configuration overrides are disabled by default. Once enabled, this allows for different security settings to be set from what is established at the Port Group level. If overrides are not monitored, anyone who gains access to a VM with a less secure VDS configuration could exploit that broader access. If there are cases where particular VMs require unique configurations then a different port group with the required configuration should be created instead of overriding port group settings.
STIGDate
VMware vSphere 8.0 vCenter Security Technical Implementation Guide2026-05-23

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (8) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
MON-01Continuous Monitoring
1.00
MON-01.7File Integrity Monitoring (FIM)
1.00
CFG-02Secure Baseline Configurations
0.50
CFG-02.7Approved Configuration Deviations
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (100) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-12Session Termination
1.00
AC-16(1)Dynamic Attribute Association
1.00
AC-17(1)Monitoring and Control
1.00
AC-2Account Management
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-24(1)Transmit Access Authorization Information
1.00
AC-25Reference Monitor
1.00

+90 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.4.1
1.00
3.4.2
1.00
CCI1 mapping
CCI-000366
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-09
1.00
PR.PS-01
1.00
PR.DS-10
0.50
PR.PSPlatform Security
0.50
PR.PS-05
0.50

Who does this work

10 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-258966r961863_chk)

If distributed switches are not used, this is not applicable. From the vSphere Client, go to "Networking". Select a distributed switch >> Select a distributed port group >> Configure >> Settings >> Properties. Review the "Override port policies". or From a PowerCLI command prompt while connected to the vCenter server, run the following command: (Get-VDPortgroup).ExtensionData.Config.Policy If there are any distributed port groups that allow overridden port policies, this is a finding. Note: This does not apply to the "Block Ports" or "Configure reset at disconnect" policies.

Fix Text (F-62615r934555_fix)

From the vSphere Client, go to "Networking". Select a distributed switch >> Select a distributed port group >> Configure >> Settings >> Properties. Click "Edit". Select advanced and update all port policies besides "Block Ports" to "disabled" and click "OK". or From a PowerCLI command prompt while connected to the vCenter server, run the following command: $pgs = Get-VDPortgroup | Get-View ForEach($pg in $pgs){ $spec = New-Object VMware.Vim.DVPortgroupConfigSpec $spec.configversion = $pg.Config.ConfigVersion $spec.Policy = New-Object VMware.Vim.VMwareDVSPortgroupPolicy $spec.Policy.VlanOverrideAllowed = $False $spec.Policy.UplinkTeamingOverrideAllowed = $False $spec.Policy.SecurityPolicyOverrideAllowed = $False $spec.Policy.IpfixOverrideAllowed = $False $spec.Policy.BlockOverrideAllowed = $True $spec.Policy.ShapingOverrideAllowed = $False $spec.Policy.VendorConfigOverrideAllowed = $False $spec.Policy.TrafficFilterOverrideAllowed = $False $pg.ReconfigureDVPortgroup_Task($spec) }