The system must be configured to require a strong session key.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-253443 | SRG-OS-000423-GPOS-00187 | WN11-SO-000060 | SV-253443r958908_rule | 2026-02-12 | 2 |
Description
A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.
ℹ️ Check
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
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".