STIGQter: STIG Summary: Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide Version: 3 Release: 2 Benchmark Date: 04 May 2021:

Named pipes that can be accessed anonymously must be configured with limited values on domain controllers.

DISA Rule

SV-226318r569184_rule

Vulnerability Number

V-226318

Group Title

SRG-OS-000138-GPOS-00069

Rule Version

WN12-SO-000055-DC

Severity

CAT I

CCI(s)

• CCI-001090 - The information system prevents unauthorized and unintended information transfer via shared system resources.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Named pipes that can be accessed anonymously" to only include "netlogon, samr, lsarpc".

Check Contents

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\LanManServer\Parameters\

Value Name: NullSessionPipes

Value Type: REG_MULTI_SZ
Value: netlogon, samr, lsarpc

The default configuration of systems promoted to domain controllers may include a blank entry in the first line prior to "netlogon", "samr", and "lsarpc". This will appear in the registry as a blank entry when viewing the registry key summary; however the value data for "NullSessionPipes" will contain the default entries.

Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the ISSO, this would not be a finding. Documentation must contain supporting information from the vendor's instructions.

Vulnerability Number

V-226318

Documentable

False

Rule Version

WN12-SO-000055-DC

Severity Override Guidance

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\LanManServer\Parameters\

Value Name: NullSessionPipes

Value Type: REG_MULTI_SZ
Value: netlogon, samr, lsarpc

The default configuration of systems promoted to domain controllers may include a blank entry in the first line prior to "netlogon", "samr", and "lsarpc". This will appear in the registry as a blank entry when viewing the registry key summary; however the value data for "NullSessionPipes" will contain the default entries.

Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the ISSO, this would not be a finding. Documentation must contain supporting information from the vendor's instructions.

Check Content Reference

M

Target Key

4217

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