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The system must be configured to require a strong session key.


Overview

Finding ID Version Rule ID IA Controls Severity
V-220919 WN10-SO-000060 SV-220919r569187_rule Medium
Description
A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.
STIG Date
Windows 10 Security Technical Implementation Guide 2021-08-18

Details

Check Text ( C-22634r555242_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: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\

Value Name: RequireStrongKey

Value Type: REG_DWORD
Value: 1

Warning: This setting may prevent a system from being joined to a domain if not configured consistently between systems.
Fix Text (F-22623r555243_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".