Title

The system must be configured to hide the computer from the browse list. (Cat III impact)

Discussion

Identifying the computer name on a network could provide an attacker with information useful in gaining access. This setting prevents the computer name from displaying in the browse list.

Check Content

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies >> Security Options. If the value for "MSS: (Hidden) Hide Computer From the Browse List (not recommended except for highly secure environments)" is not set to "Enabled", this is a finding. The policy referenced configures the following registry value. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Lanmanserver\Parameters\ Value Name: Hidden Value Type: REG_DWORD Value: 1

Fix Text

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "MSS: (Hidden) Hide Computer From the Browse List (not recommended except for highly secure environments)" to "Enabled".

Additional Identifiers

Rule ID: SV-25067r3_rule

Vulnerability ID: V-14231

Group Title: Hide Computer

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.