Check: WN12-SO-000017
Microsoft Windows Server 2012/2012 R2 Member Server STIG:
WN12-SO-000017
(in versions v3 r7 through v2 r7)
Title
The system must be configured to require a strong session key. (Cat II impact)
Discussion
A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.
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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RequireStrongKey Value Type: REG_DWORD Value: 1 This setting may prevent a system from being joined to a domain if not configured consistently between systems.
Fix Text
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".
Additional Identifiers
Rule ID: SV-225461r916422_rule
Vulnerability ID: V-225461
Group Title: SRG-OS-000423-GPOS-00187
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-002418 |
The information system protects the confidentiality and/or integrity of transmitted information. |
| CCI-002421 |
The information system implements cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by organization-defined alternative physical safeguards. |