The Windows Firewall log size must be configured for the Public Profile.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17445	WN08-FW-000027	SV-48407r1_rule	ECSC-1	Low

Description
A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. The firewall log file size for a public network connection will be set to ensure enough capacity is allocated for audit data.

STIG	Date
Windows 8 Security Technical Implementation Guide	2013-07-03

Details

Check Text ( C-45076r2_chk )
If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\WindowsFirewall\PublicProfile\Logging\ Value Name: LogFileSize Type: REG_DWORD Value: 16384 (or greater) Note: If a third-party firewall is used, document this with the IAO and mark the Windows firewall settings as NA. A comparable setting must still be implemented. The Secure Remote Computing STIGs may contain additional requirements for systems used remotely.

Check Text ( C-45076r2_chk )

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \Software\Policies\Microsoft\WindowsFirewall\PublicProfile\Logging\

Value Name: LogFileSize

Type: REG_DWORD
Value: 16384 (or greater)

Note: If a third-party firewall is used, document this with the IAO and mark the Windows firewall settings as NA. A comparable setting must still be implemented. The Secure Remote Computing STIGs may contain additional requirements for systems used remotely.

Fix Text (F-41538r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Windows Firewall with Advanced Security -> Windows Firewall with Advanced Security -> Windows Firewall Properties (this link will be in the right pane) -> Public Profile Tab -> Logging (select Customize), "Size limit (KB)" to "16,384" (or greater).