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The system must be configured to prevent the display of the last username on the logon screen.


Overview

Finding ID Version Rule ID IA Controls Severity
V-11806 WN08-SO-000018 SV-48164r1_rule Low
Description
Displaying the username of the last logged on user provides half of the userid/password equation that an unauthorized person would need to gain access. The username of the last user to log onto a system must not be displayed.
STIG Date
Windows 8 / 8.1 Security Technical Implementation Guide 2016-12-19

Details

Check Text ( C-44864r1_chk )
Analyze the system using the Security Configuration and Analysis snap-in. (See "Performing Analysis with the Security Configuration and Analysis Snap-in" in the STIG Overview document.)
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", 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-41302r1_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".