vCenter Server plugins must be verified.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-256322 | VCSA-70-000057 | SV-256322r885577_rule | CCI-000381 | medium |
| Description | ||||
| The vCenter Server includes a vSphere Client extensibility framework, which provides the ability to extend the vSphere Client with menu selections or toolbar icons that provide access to vCenter Server add-on components or external, web-based functionality. vSphere Client plugins or extensions run at the same privilege level as the user. Malicious extensions might masquerade as useful add-ons while compromising the system by stealing credentials or incorrectly configuring the system. Additionally, vCenter comes with a number of plugins preinstalled that may or may not be necessary for proper operation. | ||||
| STIG | Date | |||
| VMware vSphere 7.0 vCenter Security Technical Implementation Guide | 2023-12-21 | |||
Details
Check Text (C-256322r885577_chk)
From the vSphere Client, go to Administration >> Solutions >> Client Plug-Ins.
View the Installed/Available Plug-ins list and verify they are all identified as authorized VMware, third-party (partner), and/or site-specific approved plug-ins.
If any installed/available plug-ins in the viewable list cannot be verified as allowed vSphere Client plug-ins from trusted sources or are not in active use, this is a finding.
Fix Text (F-59940r885576_fix)
From the vSphere Client, go to Administration >> Solutions >> Client Plug-Ins, click the radio button next to the unknown plug-in, and click "Disable".
If the plugin will not be needed in the future, proceed to uninstall the plug-in.
To uninstall plug-ins, do the following:
If vCenter Server is in linked mode, perform this procedure on the vCenter Server that is used to install the plug-in initially and then restart the vCenter Server services on the linked vCenter Server:
In a web browser, navigate to "http://vCenter_Server_name_or_IP/mob", where "vCenter_Server_name_or_IP/mob" is the name of the vCenter Server or its IP address.
Click "Content".
Click "ExtensionManager".
Select and copy the name of the plug-in to be removed from the list of values under "Properties".
Click "UnregisterExtension". A new window appears.
Paste the name of the plug-in and click "Invoke Method". This removes the plug-in.
Close the window.
Refresh the Managed Object Type:ManagedObjectReference:ExtensionManager window to verify the plug-in is removed successfully.
Note: If the plug-in still appears, restart the vSphere Client.
Note: The Managed Object Browser (MOB) may have to be enabled temporarily if it was disabled previously.