InformationThis policy setting determines whether the SMB redirector will send plaintext passwords during authentication to third-party SMB servers that do not support password encryption.
It is recommended that you disable this policy setting unless there is a strong business case to enable it. If this policy setting is enabled, unencrypted passwords will be allowed across the network.
The recommended state for this setting is: Disabled.
If you enable this policy setting, the server can transmit passwords in plaintext across the network to other computers that offer SMB services, which is a significant security risk. These other computers may not use any of the SMB security mechanisms that are included with Windows Server 2003.
None - this is the default behavior.
Some very old applications and operating systems such as MS-DOS, Windows for Workgroups 3.11, and Windows 95a may not be able to communicate with the servers in your organization by means of the SMB protocol.
SolutionTo establish the recommended configuration, set the following Device Configuration Policy to Disabled
To access the Device Configuration Policy from the Intune Home page:
Click Configuration profiles
Click Create profile
Select the platform (Windows 10 and later)
Select the profile (Endpoint protection)
Enter a Name
Configure the following Setting
Path: Endpoint protection/Local device security options/Microsoft Network Client
Setting Name: Send unencrypted password to third-party SMB servers
Continue through the Wizard to complete the creation of the profile (profile assignments, applicability etc.)
Note: More than one configuration setting from each of the Configuration profiles (ex: Administrative Templates, Custom etc.) can be added to each Device Configuration Policy.
Note #2: This setting can also be created via a Custom Configuration Profile using the following OMA-URI:
Name: <Enter name>
Description: <Enter Description>
Data type: Integer
Disabled. (Plaintext passwords will not be sent during authentication to third-party SMB servers that do not support password encryption.)