VMware vSphere 6.5 Virtual Machine Security Technical Implementation Guide

This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via e-mail to the following address: [email protected]

Details

Version / Release: V1R1

Published: 2019-05-22

Updated At: 2019-07-06 12:02:14

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Findings
Severity Open Not Reviewed Not Applicable Not a Finding
Overall 0 0 0 0
Low 0 0 0 0
Medium 0 0 0 0
High 0 0 0 0
Drop CKL or SCAP (XCCDF) results here.

    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-104393r1_rule VMCH-65-000001 CCI-000366 LOW Copy operations must be disabled on the virtual machine. Copy and paste operations are disabled by default; however, by explicitly disabling this feature it will enable audit controls to check that this setting is correct. Copy, paste, drag and drop, or GUI copy/paste operations between the guest OS and the rem
    SV-104395r1_rule VMCH-65-000002 CCI-000366 LOW Drag and drop operations must be disabled on the virtual machine. Copy and paste operations are disabled by default; however, by explicitly disabling this feature it will enable audit controls to check that this setting is correct. Copy, paste, drag and drop, or GUI copy/paste operations between the guest OS and the rem
    SV-104397r1_rule VMCH-65-000003 CCI-000366 LOW GUI functionality for copy/paste operations must be disabled on the virtual machine. Copy and paste operations are disabled by default; however, by explicitly disabling this feature it will enable audit controls to check that this setting is correct. Copy, paste, drag and drop, or GUI copy/paste operations between the guest OS and the rem
    SV-104399r1_rule VMCH-65-000004 CCI-000366 LOW Paste operations must be disabled on the virtual machine. Copy and paste operations are disabled by default; however, by explicitly disabling this feature it will enable audit controls to check that this setting is correct. Copy, paste, drag and drop, or GUI copy/paste operations between the guest OS and the rem
    SV-104401r1_rule VMCH-65-000005 CCI-000366 MEDIUM Virtual disk shrinking must be disabled on the virtual machine. Shrinking a virtual disk reclaims unused space in it. If there is empty space in the disk, this process reduces the amount of space the virtual disk occupies on the host drive. Normal users and processes-that is, users and processes without root or admini
    SV-104403r1_rule VMCH-65-000006 CCI-000366 MEDIUM Virtual disk erasure must be disabled on the virtual machine. Shrinking and wiping (erasing) a virtual disk reclaims unused space in it. If there is empty space in the disk, this process reduces the amount of space the virtual disk occupies on the host drive. Normal users and processes - that is, users and processes
    SV-104405r1_rule VMCH-65-000007 CCI-000366 MEDIUM Independent, non-persistent disks must be not be used on the virtual machine. The security issue with nonpersistent disk mode is that successful attackers, with a simple shutdown or reboot, might undo or remove any traces that they were ever on the machine. To safeguard against this risk, production virtual machines should be set t
    SV-104407r1_rule VMCH-65-000008 CCI-000366 MEDIUM HGFS file transfers must be disabled on the virtual machine. Setting isolation.tools.hgfsServerSet.disable to true disables registration of the guest's HGFS server with the host. APIs that use HGFS to transfer files to and from the guest operating system, such as some VIX commands, will not function. An attacker co
    SV-104409r1_rule VMCH-65-000009 CCI-000366 LOW The unexposed feature keyword isolation.tools.ghi.autologon.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104411r1_rule VMCH-65-000012 CCI-000366 LOW The unexposed feature keyword isolation.tools.ghi.launchmenu.change must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104413r1_rule VMCH-65-000013 CCI-000366 LOW The unexposed feature keyword isolation.tools.memSchedFakeSampleStats.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104415r1_rule VMCH-65-000014 CCI-000366 LOW The unexposed feature keyword isolation.tools.ghi.protocolhandler.info.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104423r1_rule VMCH-65-000015 CCI-000366 LOW The unexposed feature keyword isolation.ghi.host.shellAction.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104425r1_rule VMCH-65-000018 CCI-000366 LOW The unexposed feature keyword isolation.tools.ghi.trayicon.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104427r1_rule VMCH-65-000019 CCI-000366 LOW The unexposed feature keyword isolation.tools.unity.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104429r1_rule VMCH-65-000020 CCI-000366 LOW The unexposed feature keyword isolation.tools.unityInterlockOperation.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104431r1_rule VMCH-65-000021 CCI-000366 LOW The unexposed feature keyword isolation.tools.unity.push.update.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104433r1_rule VMCH-65-000022 CCI-000366 LOW The unexposed feature keyword isolation.tools.unity.taskbar.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104435r1_rule VMCH-65-000023 CCI-000366 LOW The unexposed feature keyword isolation.tools.unityActive.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104437r1_rule VMCH-65-000024 CCI-000366 LOW The unexposed feature keyword isolation.tools.unity.windowContents.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104439r1_rule VMCH-65-000025 CCI-000366 LOW The unexposed feature keyword isolation.tools.vmxDnDVersionGet.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104441r1_rule VMCH-65-000026 CCI-000366 LOW The unexposed feature keyword isolation.tools.guestDnDVersionSet.disable must be set on the virtual machine. Some virtual machine advanced settings parameters do not apply on vSphere because VMware virtual machines work on both vSphere and hosted virtualization platforms such as Workstation and Fusion. Explicitly disabling these features reduces the potential fo
    SV-104443r1_rule VMCH-65-000028 CCI-000366 MEDIUM Unauthorized floppy devices must be disconnected on the virtual machine. Ensure that no device is connected to a virtual machine if it is not required. For example, floppy, serial and parallel ports are rarely used for virtual machines in a datacenter environment, and CD/DVD drives are usually connected only temporarily during
    SV-104445r1_rule VMCH-65-000029 CCI-000366 LOW Unauthorized CD/DVD devices must be disconnected on the virtual machine. Ensure that no device is connected to a virtual machine if it is not required. For example, floppy, serial and parallel ports are rarely used for virtual machines in a datacenter environment, and CD/DVD drives are usually connected only temporarily during
    SV-104447r1_rule VMCH-65-000030 CCI-000366 MEDIUM Unauthorized parallel devices must be disconnected on the virtual machine. Ensure that no device is connected to a virtual machine if it is not required. For example, floppy, serial and parallel ports are rarely used for virtual machines in a datacenter environment, and CD/DVD drives are usually connected only temporarily during
    SV-104449r1_rule VMCH-65-000031 CCI-000366 MEDIUM Unauthorized serial devices must be disconnected on the virtual machine. Ensure that no device is connected to a virtual machine if it is not required. For example, floppy, serial and parallel ports are rarely used for virtual machines in a datacenter environment, and CD/DVD drives are usually connected only temporarily during
    SV-104451r1_rule VMCH-65-000032 CCI-000366 MEDIUM Unauthorized USB devices must be disconnected on the virtual machine. Ensure that no device is connected to a virtual machine if it is not required. For example, floppy, serial and parallel ports are rarely used for virtual machines in a datacenter environment, and CD/DVD drives are usually connected only temporarily during
    SV-104453r1_rule VMCH-65-000033 CCI-000366 MEDIUM Console connection sharing must be limited on the virtual machine. By default, remote console sessions can be connected to by more than one user at a time. When multiple sessions are activated, each terminal window gets a notification about the new session. If an administrator in the VM logs in using a VMware remote con
    SV-104455r1_rule VMCH-65-000034 CCI-000366 MEDIUM Console access through the VNC protocol must be disabled on the virtual machine. The VM console enables you to connect to the console of a virtual machine, in effect seeing what a monitor on a physical server would show. This console is also available via the VNC protocol and should be disabled.
    SV-104457r1_rule VMCH-65-000036 CCI-000366 LOW Informational messages from the virtual machine to the VMX file must be limited on the virtual machine. The configuration file containing these name-value pairs is limited to a size of 1MB. If not limited, VMware tools in the guest OS are capable of sending a large and continuous data stream to the host. This 1MB capacity should be sufficient for most cases
    SV-104459r1_rule VMCH-65-000037 CCI-000366 MEDIUM Unauthorized removal, connection and modification of devices must be prevented on the virtual machine. In a virtual machine, users and processes without root or administrator privileges can connect or disconnect devices, such as network adaptors and CD-ROM drives, and can modify device settings. Use the virtual machine settings editor or configuration edit
    SV-104461r1_rule VMCH-65-000039 CCI-000366 MEDIUM The virtual machine must not be able to obtain host information from the hypervisor. If enabled, a VM can obtain detailed information about the physical host. The default value for the parameter is FALSE. This setting should not be TRUE unless a particular VM requires this information for performance monitoring. An adversary potentially c
    SV-104463r1_rule VMCH-65-000040 CCI-000366 LOW Shared salt values must be disabled on the virtual machine. When salting is enabled (Mem.ShareForceSalting=1 or 2) in order to share a page between two virtual machines both salt and the content of the page must be same. A salt value is a configurable advanced option for each virtual machine. You can manually spec
    SV-104465r1_rule VMCH-65-000041 CCI-000366 LOW Access to virtual machines through the dvfilter network APIs must be controlled. An attacker might compromise a VM by making use the dvFilter API. Configure only those VMs to use the API that need this access.
    SV-104467r1_rule VMCH-65-000042 CCI-000366 LOW System administrators must use templates to deploy virtual machines whenever possible. By capturing a hardened base operating system image (with no applications installed) in a template, ensure all virtual machines are created with a known baseline level of security. Then use this template to create other, application-specific templates, or
    SV-104469r1_rule VMCH-65-000043 CCI-000366 MEDIUM Use of the virtual machine console must be minimized. The VM console enables a connection to the console of a virtual machine, in effect seeing what a monitor on a physical server would show. The VM console also provides power management and removable device connectivity controls, which might potentially all
    SV-104471r1_rule VMCH-65-000044 CCI-000366 MEDIUM The virtual machine guest operating system must be locked when the last console connection is closed. When accessing the VM console the guest OS must be locked when the last console user disconnects, limiting the possibility of session hijacking. This setting only applies to Windows-based VMs with VMware tools installed.
    SV-104473r1_rule VMCH-65-000045 CCI-000366 LOW 3D features on the virtual machine must be disabled when not required. It is recommended that 3D acceleration be disabled on virtual machines that do not require 3D functionality, (e.g. most server workloads or desktops not using 3D applications).
    SV-104475r1_rule VMCH-65-000046 CCI-000366 MEDIUM Encryption must be enabled for vMotion on the virtual machine. vMotion migrations in vSphere 6.0 and earlier transferred working memory and CPU state information in clear text over the vMotion network. As of vSphere 6.5 this transfer can be transparently encrypted using 256bit AES-GCM with negligible performance imp
    SV-104477r1_rule VMCH-65-000047 CCI-000366 MEDIUM The virtual machine guest operating system must be locked when the last console connection is closed. When accessing the VM console the guest OS must be locked when the last console user disconnects, limiting the possibility of session hijacking. This setting only applies to Windows-based VMs with VMware tools installed.
    SV-104479r1_rule VMCH-65-000048 CCI-000366 LOW 3D features on the virtual machine must be disabled when not required. It is recommended that 3D acceleration be disabled on virtual machines that do not require 3D functionality, (e.g. most server workloads or desktops not using 3D applications).
    SV-104481r1_rule VMCH-65-000049 CCI-000366 MEDIUM Encryption must be enabled for vMotion on the virtual machine. vMotion migrations in vSphere 6.0 and earlier transferred working memory and CPU state information in clear text over the vMotion network. As of vSphere 6.5 this transfer can be transparently encrypted using 256bit AES-GCM with negligible performance imp