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Windows Server 2019 non-system-created file shares must limit access to groups that require it.


Overview

Finding ID Version Rule ID IA Controls Severity
V-205721 WN19-00-000230 SV-205721r569188_rule Medium
Description
Shares on a system provide network access. To prevent exposing sensitive information, where shares are necessary, permissions must be reconfigured to give the minimum access to accounts that require it.
STIG Date
Microsoft Windows Server 2019 Security Technical Implementation Guide 2022-03-01

Details

Check Text ( C-5986r355081_chk )
If only system-created shares such as "ADMIN$", "C$", and "IPC$" exist on the system, this is NA. (System-created shares will display a message that it has been shared for administrative purposes when "Properties" is selected.)

Run "Computer Management".

Navigate to System Tools >> Shared Folders >> Shares.

Right-click any non-system-created shares.

Select "Properties".

Select the "Share Permissions" tab.

If the file shares have not been configured to restrict permissions to the specific groups or accounts that require access, this is a finding.

Select the "Security" tab.

If the permissions have not been configured to restrict permissions to the specific groups or accounts that require access, this is a finding.
Fix Text (F-5986r355082_fix)
If a non-system-created share is required on a system, configure the share and NTFS permissions to limit access to the specific groups or accounts that require it.

Remove any unnecessary non-system-created shares.