Windows Server 2019 must be configured to require a strong session key.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-205824WN19-SO-000110SV-205824r958908_ruleCCI-002418medium
Description
A computer connecting to a domain controller will establish a secure channel. The secure channel connection may be subject to compromise, such as hijacking or eavesdropping, if strong session keys are not used to establish the connection. Requiring strong session keys enforces 128-bit encryption between systems. Satisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188
STIGDate
Microsoft Windows Server 2019 Security Technical Implementation Guide2025-05-23

Related Frameworks

3 paths across 3 frameworks
NIST 800-531 mapping
SC-8
1.00
  • DISA · 3 · disa_xccdf · related
  • DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.13.8
1.00
  • DISA · 3 · disa_xccdf · related
  • DISA · 2025-01-23 · disa_cci_list · equivalent
  • NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-002418
1.00
  • DISA · 3 · disa_xccdf · related

Details

Check Text (C-205824r958908_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: 0x00000001 (1) This setting may prevent a system from being joined to a domain if not configured consistently between systems.

Fix Text (F-6089r355835_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".