Non-system-created file shares on a system must limit access to groups that require it.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-253267	WN11-00-000060	SV-253267r828885_rule		Medium

Description
Shares which provide network access, must not exist on a workstation except for system-created administrative shares, and could potentially expose sensitive information. If a share is necessary, share permissions, as well as NTFS permissions, must be reconfigured to give the minimum access to those accounts that require it.

STIG	Date
Microsoft Windows 11 Security Technical Implementation Guide	2022-06-24

Details

Check Text ( C-56720r828883_chk )
Non-system-created shares must not exist on workstations. If only system-created shares exist on the system, this is NA. Run "Computer Management". Navigate to System Tools >> Shared Folders >> Shares. If the only shares listed are "ADMIN$", "C$" and "IPC$", this is NA. (Selecting Properties for system-created shares will display a message that it has been shared for administrative purposes.) Right-click any non-system-created shares. Select "Properties". Select the "Share Permissions" tab. Verify the necessity of any shares found. If the file shares have not been reconfigured to restrict permissions to the specific groups or accounts that require access, this is a finding. Select the "Security" tab. If the NTFS permissions have not been reconfigured to restrict permissions to the specific groups or accounts that require access, this is a finding.

Check Text ( C-56720r828883_chk )

Non-system-created shares must not exist on workstations.

If only system-created shares exist on the system, this is NA.

Run "Computer Management".
Navigate to System Tools >> Shared Folders >> Shares.

If the only shares listed are "ADMIN$", "C$" and "IPC$", this is NA.
(Selecting Properties for system-created shares will display a message that it has been shared for administrative purposes.)

Right-click any non-system-created shares.
Select "Properties".
Select the "Share Permissions" tab.

Verify the necessity of any shares found.
If the file shares have not been reconfigured to restrict permissions to the specific groups or accounts that require access, this is a finding.

Select the "Security" tab.

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

Fix Text (F-56670r828884_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.