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Automatic logons must be disabled.


Overview

Finding ID Version Rule ID IA Controls Severity
V-1145 3.040 SV-29007r2_rule Medium
Description
Allowing a system to automatically log on when the machine is booted could give access to any unauthorized individual who restarts the computer. Automatic logon with administrator privileges would give full access to an unauthorized individual.
STIG Date
Windows 2008 Member Server Security Technical Implementation Guide 2019-06-18

Details

Check Text ( C-45834r1_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 "MSS: (AutoAdminLogon) Enable Automatic Logon (not recommended)" is not set to "Disabled", this is a finding.

The policy referenced configures the following registry value:

Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\

Value Name: AutoAdminLogon

Type: REG_SZ
Value: 0
Fix Text (F-43225r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (AutoAdminLogon) Enable Automatic Logon (not recommended)" to "Disabled".

Ensure no passwords are stored in the "DefaultPassword" registry value noted below.

Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\

Value Name: DefaultPassword