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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-73267 WN16-00-000250 SV-87919r1_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
Windows Server 2016 Security Technical Implementation Guide 2019-01-16

Details

Check Text ( C-73371r1_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-79711r1_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.