The system is configured to allow the display of the last user name on the logon screen.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-11806	3.119	SV-29399r1_rule		Low

Description
The user name of the last user to log onto a system will not be displayed. This eliminates half of the Userid/Password equation that an unauthorized person would need to log on.

STIG	Date
Windows Vista Security Technical Implementation Guide	2016-06-03

Details

Check Text ( C-7791r1_chk )
Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Interactive logon: Do not display last user name” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: DontDisplayLastUserName Value Type: REG_DWORD Value: 1

Check Text ( C-7791r1_chk )

Analyze the system using the Security Configuration and Analysis snap-in.
Expand the Security Configuration and Analysis tree view.
Navigate to Local Policies -> Security Options.

If the value for “Interactive logon: Do not display last user name” is not set to “Enabled”, then this is a finding.

The policy referenced configures the following registry value:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System\

Value Name: DontDisplayLastUserName

Value Type: REG_DWORD
Value: 1

Fix Text (F-11088r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Interactive logon: Do not display last user name” to “Enabled”.