Check: WN11-SO-000070
Microsoft Windows 11 STIG:
WN11-SO-000070
(in versions v1 r6 through v1 r1)
Title
The machine inactivity limit must be set to 15 minutes, locking the system with the screensaver. (Cat II impact)
Discussion
Unattended systems are susceptible to unauthorized use and must be locked when unattended. The screen saver must 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. Satisfies: SRG-OS-000279-GPOS-00109, SRG-OS-000163-GPOS-00072
Check Content
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
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.
Additional Identifiers
Rule ID: SV-253444r840185_rule
Vulnerability ID: V-253444
Group Title: SRG-OS-000279-GPOS-00109
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-001133 |
The information system terminates the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity. |
| CCI-002331 |
The organization employs full-device encryption or container encryption to protect the integrity of information on organization-defined mobile devices. |
| CCI-002361 |
The information system automatically terminates a user session after organization-defined conditions or trigger events requiring session disconnect. |