System BIOS or system controllers must not allow user-level access.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-40195	WN12-00-000002-02	SV-52153r2_rule		Medium

Description
A system's BIOS or system controller handles the initial startup of a system, and its configuration must be protected from unauthorized modification. When the BIOS or system controller supports the creation of user accounts or passwords, such protections must be used and accounts/passwords only assigned to system administrators. Failure to protect BIOS or system controller settings could result in Denial of Service or compromise of the system resulting from unauthorized configuration changes.

Description

A system's BIOS or system controller handles the initial startup of a system, and its configuration must be protected from unauthorized modification. When the BIOS or system controller supports the creation of user accounts or passwords, such protections must be used and accounts/passwords only assigned to system administrators. Failure to protect BIOS or system controller settings could result in Denial of Service or compromise of the system resulting from unauthorized configuration changes.

STIG	Date
Windows Server 2012 / 2012 R2 Domain Controller Security Technical Implementation Guide	2016-06-08

Details

Check Text ( C-46950r2_chk )
If the BIOS or system controller does not support user-level access in addition to supervisor/administrator access, this is NA. If the BIOS or system controller supports user-level access in addition to supervisor/administrator access, determine whether this access is enabled. If user-level access is enabled, this is a finding. If access is restricted by way of hypervisor configuration settings on virtual systems, this would not be a finding.

Check Text ( C-46950r2_chk )

If the BIOS or system controller does not support user-level access in addition to supervisor/administrator access, this is NA.

If the BIOS or system controller supports user-level access in addition to supervisor/administrator access, determine whether this access is enabled. If user-level access is enabled, this is a finding.

If access is restricted by way of hypervisor configuration settings on virtual systems, this would not be a finding.

Fix Text (F-45179r2_fix)
Access the system's BIOS or system controller. Disable user-level access. Restrictions may also be applied through hypervisor configuration settings for virtual machines.