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The machine inactivity limit must be set to 15 minutes, locking the system with the screensaver.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-226287 | WN12-SO-000021 | SV-226287r794511_rule | Medium |
| Description |
|---|
| Unattended systems are susceptible to unauthorized use and should be locked when unattended. The screen saver should be set at a maximum of 15 minutes and be password protected. This protects critical and sensitive data from exposure to unauthorized personnel with physical access to the computer. |
| STIG | Date |
|---|---|
| Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide | 2023-02-27 |
Details
| Check Text ( C-27989r476705_chk ) |
|---|
| If the following registry value 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: InactivityTimeoutSecs Value Type: REG_DWORD Value: 0x00000384 (900) (or less, excluding "0" which is effectively disabled) |
| Fix Text (F-27977r476706_fix) |
|---|
| Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive logon: Machine inactivity limit" to "900" seconds" or less, excluding "0" which is effectively disabled. |