Title

Automatically signing in the last interactive user after a system-initiated restart must be disabled (Windows 2012 R2). (Cat II impact)

Discussion

Windows 2012 R2 can be configured to automatically sign the user back in after a Windows Update restart. Some protections are in place to help ensure this is done in a secure fashion; however, disabling this will prevent the caching of credentials for this purpose and also ensure the user is aware of the restart.

Check Content

This requirement is NA for the initial release of Windows 2012. It is applicable to Windows 2012 R2. Verify the registry value below. If it does not exist or is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: DisableAutomaticRestartSignOn Value Type: REG_DWORD Value: 1

Fix Text

This requirement is NA for the initial release of Windows 2012. It is applicable to Windows 2012 R2. Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Logon Options -> "Sign-in last interactive user automatically after a system-initiated restart" to "Disabled".

Additional Identifiers

Rule ID: SV-226234r794575_rule

Vulnerability ID: V-226234

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

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