Detections
Analytics

1.1.1.2.1.79 Set 'Interactive logon: Require Domain Controller authentication to unlock workstation' to 'Enabled'

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Information

Logon information is required to unlock a locked computer. For domain accounts, the Interactive logon: Require Domain Controller authentication to unlock workstation setting determines whether it is necessary to contact a domain controller to unlock a computer. If you enable this setting, a domain controller must authenticate the domain account that is being used to unlock the computer. If you disable this setting, logon information confirmation with a domain controller is not required for a user to unlock the computer. However, if you configure the Interactive logon: Number of previous logons to cache (in case domain controller is not available) setting to a value that is greater than zero, then the user's cached credentials will be used to unlock the computer. Note: This setting applies to Windows 2000 computers, but it is not available through the Security Configuration Manager tools on these computers. By default, the computer caches in memory the credentials of any users who are authenticated locally. The computer uses these cached credentials to authenticate anyone who attempts to unlock the console. When cached credentials are used, any changes that have recently been made to the accountsuch as user rights assignments, account lockout, or the account being disabledare not considered or applied after the account is authenticated. User privileges are not updated, and (more importantly) disabled accounts are still able to unlock the console of the computer.

Solution

To implement the recommended configuration state, set the following Group Policy setting to 1.

Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Interactive logon- Require Domain Controller authentication to unlock workstation

Impact- When the console on a computer is locked, either by a user or automatically by a screen saver time-out, the console can only be unlocked if the user is able to re-authenticate to the domain controller. If no domain controller is available, then users cannot unlock their workstations. If you configure the Interactive logon- Number of previous logons to cache (in case domain controller is not available) setting to 0, users whose domain controllers are unavailable (such as mobile or remote users) will not be able to log on.

See Also

https://workbench.cisecurity.org/files/42

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-11, CCE|CCE-3504-8

Plugin: Windows

Control ID: 3428fdf2755fc6a07340b39859d3c93cae1643272d6dca14873e0cea4758c9e5