Details

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 software installation.

Solution

The VM must be powered off in order to remove a serial device.

From the vSphere Web Client right-click the Virtual Machine and go to Edit Settings. Select the serial device and click the circle-x to remove then OK.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_6-5_Y21M10_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system VMware.

References

• 800-53|CM-6b.
• CAT|II
• CCI|CCI-000366
• Rule-ID|SV-237090r640107_rule
• STIG-ID|VMCH-65-000031
• STIG-Legacy|SV-104449
• STIG-Legacy|V-94619
• Vuln-ID|V-237090

Source

• Tenable.com/audits