Windows Server 2019 must not have the Server Message Block (SMB) v1 protocol installed.

An XCCDF Rule

Description

SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks and is not FIPS compliant.

ID: SV-205682r958478_rule
Version: WN19-00-000380
Severity: Medium
References: CCI-000381
Updated: 6 days ago

Remediation Templates

Uninstall the SMBv1 protocol.

Open "Windows PowerShell" with elevated privileges (run as administrator).

Enter "Uninstall-WindowsFeature -Name FS-SMB1 -Restart".
(Omit the Restart parameter if an immediate restart of the system cannot be done.)
Alternately:

Start "Server Manager".

Select the server with the feature.

Scroll down to "ROLES AND FEATURES" in the right pane.

Select "Remove Roles and Features" from the drop-down "TASKS" list.

Select the appropriate server on the "Server Selection" page and click "Next".

Deselect "SMB 1.0/CIFS File Sharing Support" on the "Features" page.

Click "Next" and "Remove" as prompted.

Windows Server 2019 must not have the Server Message Block (SMB) v1 protocol installed.

Description

Remediation Templates

A Manual Procedure