Microsoft Windows 11

The system must be configured to require a strong session key

STIG ID: WN11-SO-000060 | SRG: SRG-OS-000423-GPOS-00187 | Severity: Medium | CCI: CCI-002418 | Vulnerability ID: V-253443

Description

A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.

Check

C-253443r958908_chk

If the following registry value does not exist or is not configured as specified, this is a finding:Registry Hive: HKEY_LOCAL_MACHINERegistry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\Value Name: RequireStrongKeyValue Type: REG_DWORDValue: 1Warning: This setting may prevent a system from being joined to a domain if not configured consistently between systems.

Fix

F-56846r829412_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Domain member: Require strong (Windows 2000 or Later) session key" to "Enabled".