STIGQter: STIG Summary: Microsoft Windows Server 2019 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

Windows Server 2019 must have the Server Message Block (SMB) v1 protocol disabled on the SMB server.

DISA Rule

SV-205683r569188_rule

Vulnerability Number

V-205683

Group Title

SRG-OS-000095-GPOS-00049

Rule Version

WN19-00-000390

Severity

CAT II

CCI(s)

• CCI-000381 - The organization configures the information system to provide only essential capabilities.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Configure SMBv1 Server" to "Disabled".

The system must be restarted for the change to take effect.

This policy setting requires the installation of the SecGuide custom templates included with the STIG package. "SecGuide.admx" and "SecGuide.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

Check Contents

Different methods are available to disable SMBv1 on Windows Server 2019, if WN19-00-000380 is configured, this is NA.

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: SMB1

Type: REG_DWORD
Value: 0x00000000 (0)

Vulnerability Number

V-205683

Documentable

False

Rule Version

WN19-00-000390

Severity Override Guidance

Different methods are available to disable SMBv1 on Windows Server 2019, if WN19-00-000380 is configured, this is NA.

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: SMB1

Type: REG_DWORD
Value: 0x00000000 (0)

Check Content Reference

M

Target Key

2907

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