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

The Windows SMB client must be enabled to perform SMB packet signing when possible.

DISA Rule

SV-225471r569185_rule

Vulnerability Number

V-225471

Group Title

SRG-OS-000423-GPOS-00187

Rule Version

WN12-SO-000029

Severity

CAT II

CCI(s)

• 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.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network client: Digitally sign communications (if server agrees)" to "Enabled".

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\LanmanWorkstation\Parameters\

Value Name: EnableSecuritySignature

Value Type: REG_DWORD
Value: 1

Vulnerability Number

V-225471

Documentable

False

Rule Version

WN12-SO-000029

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\LanmanWorkstation\Parameters\

Value Name: EnableSecuritySignature

Value Type: REG_DWORD
Value: 1

Check Content Reference

M

Target Key

4214

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