Title

The system must be configured to prevent anonymous users from having the same rights as the Everyone group. (Cat II impact)

Discussion

Access by anonymous users must be restricted. If this setting is enabled, then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users must not have these permissions or rights.

Check Content

Analyze the system using the Security Configuration and Analysis snap-in. (See "Performing Analysis with the Security Configuration and Analysis Snap-in" in the STIG Overview document.) Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for "Network access: Let everyone permissions apply to anonymous users" is not set to "Disabled", this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: EveryoneIncludesAnonymous Value Type: REG_DWORD Value: 0

Fix Text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Let everyone permissions apply to anonymous users" to "Disabled".

Additional Identifiers

Rule ID: SV-48079r1_rule

Vulnerability ID: V-3377

Group Title: Everyone Anonymous rights

Expert Comments

CCIs tied to check.

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