What changed in Microsoft Windows Defender Firewall with Advanced Security STIG V2R2V2R2 changes

Title

The Windows Defender Firewall with Advanced Security must be enabled when connected to a domain.

Check text

If the system is not a member of a domain, the Domain Profile requirements can be marked NA. If the following policy-based registry value exists and is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: 1SOFTWARE1Policies1Microsoft1WindowsFirewall1DomainProfile1 Value Name: EnableFirewall Type: REG_DWORD Value: 0x00000001 (1) If the policy-based registry value does not exist, verify the following registry value. If it is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: 1SYSTEM1CurrentControlSet1Services1SharedAccess1Parameters1FirewallPolicy1DomainProfile1 Value Name: EnableFirewall Type: REG_DWORD Value: 0x00000001 (1)

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Domain Profile Tabtab ->> State, "Firewall state" to "On (recommended)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set domainprofile state on". Oror "Netsh advfirewall set allprofiles state on".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. This setting enables the firewall when connected to the domain.

V-241989 in V2R2

Title

The Windows Defender Firewall with Advanced Security must be enabled when connected to a private network.

Check text

If the following policy-based registry value exists and is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: 1SOFTWARE1Policies1Microsoft1WindowsFirewall1PrivateProfile1 Value Name: EnableFirewall Type: REG_DWORD Value: 0x00000001 (1) If the policy-based registry value does not exist, verify the following registry value. If it is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: 1SYSTEM1CurrentControlSet1Services1SharedAccess1Parameters1FirewallPolicy1StandardProfile1 Value Name: EnableFirewall Type: REG_DWORD Value: 0x00000001 (1)

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Private Profile Tabtab ->> State, "Firewall state" to "On (recommended)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set privateprofile state on". Oror "Netsh advfirewall set allprofiles state on".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. This setting enables the firewall when connected to a private network.

V-241990 in V2R2

Title

The Windows Defender Firewall with Advanced Security must be enabled when connected to a public network.

Check text

If the following policy-based registry value exists and is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: 1SOFTWARE1Policies1Microsoft1WindowsFirewall1PublicProfile1 Value Name: EnableFirewall Type: REG_DWORD Value: 0x00000001 (1) If the policy-based registry value does not exist, verify the following registry value. If it is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: 1SYSTEM1CurrentControlSet1Services1SharedAccess1Parameters1FirewallPolicy1PublicProfile1 Value Name: EnableFirewall Type: REG_DWORD Value: 0x00000001 (1)

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> State, "Firewall state" to "On (recommended)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set publicprofile state on". Oror "Netsh advfirewall set allprofiles state on".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. This setting enables the firewall when connected to a public network.

V-241991 in V2R2

Title

The Windows Defender Firewall with Advanced Security must block unsolicited inbound connections when connected to a domain.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Domain Profile Tabtab ->> State, "Inbound connections" to "Block (default)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set domainprofile firewallpolicy blockinbound,allowoutbound". Oror "Netsh advfirewall set allprofiles firewallpolicy blockinbound,allowoutbound". Both inbound and outbound parameters must be specified to execute this command.

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Unsolicited inbound connections may be malicious attempts to gain access to a system. Unsolicited inbound connections, for which there is no rule allowing the connection, will be blocked in the domain.

V-241992 in V2R2

Title

The Windows Defender Firewall with Advanced Security must allow outbound connections, unless a rule explicitly blocks the connection when connected to a domain.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Domain Profile Tabtab ->> State, "Outbound connections" to "Allow (default)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set domainprofile firewallpolicy blockinbound,allowoutbound". Oror "Netsh advfirewall set allprofiles firewallpolicy blockinbound,allowoutbound". Both inbound and outbound parameters must be specified to execute this command.

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Outbound connections are allowed in the domain, unless a rule explicitly blocks the connection. This allows normal outbound communication, which could be restricted as necessary with additional rules.

V-241993 in V2R2

Title

The Windows Defender Firewall with Advanced Security log size must be configured for domain connections.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> WindowsMicrosoft Defender Firewall with Advanced Security ->> WindowsMicrosoft Defender Firewall with Advanced Security ->> WindowsMicrosoft Defender Firewall Properties (this link will be in the right pane) ->> Domain Profile Tabtab ->> Logging (select Customize), "Size limit (KB):" to "16,384" or greater. In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh command may also be used to configure this setting: "Netsh advfirewall set domainprofile logging maxfilesize 16384" or greater.

Discussion

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 domain connection will be set to ensure enough capacity is allocated for audit data.

V-241994 in V2R2

Title

The Windows Defender Firewall with Advanced Security must log dropped packets when connected to a domain.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Domain Profile Tabtab ->> Logging (select Customize), "Log dropped packets" to "Yes". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set domainprofile logging droppedconnections enable". Oror "Netsh advfirewall set allprofiles logging droppedconnections enable".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Logging of dropped packets for a domain connection will be enabled to maintain an audit trail of potential issues.

V-241995 in V2R2

Title

The Windows Defender Firewall with Advanced Security must log successful connections when connected to a domain.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Domain Profile Tabtab ->> Logging (select Customize), "Log successful connections" to "Yes". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set domainprofile logging allowedconnections enable". Oror "Netsh advfirewall set allprofiles logging allowedconnections enable".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Logging of successful connections for a domain connection will be enabled to maintain an audit trail if issues are discovered.

V-241996 in V2R2

Title

The Windows Defender Firewall with Advanced Security must block unsolicited inbound connections when connected to a private network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Private Profile Tabtab ->> State, "Inbound connections" to "Block (default)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set privateprofile firewallpolicy blockinbound,allowoutbound". Oror "Netsh advfirewall set allprofiles firewallpolicy blockinbound,allowoutbound". Both inbound and outbound parameters must be specified to execute this command.

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Unsolicited inbound connections may be malicious attempts to gain access to a system. Unsolicited inbound connections, for which there is no rule allowing the connection, will be blocked on a private network.

V-241997 in V2R2

Title

The Windows Defender Firewall with Advanced Security must allow outbound connections, unless a rule explicitly blocks the connection when connected to a private network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Private Profile Tabtab ->> State, "Outbound connections" to "Allow (default)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set privateprofile firewallpolicy blockinbound,allowoutbound". Oror "Netsh advfirewall set allprofiles firewallpolicy blockinbound,allowoutbound". Both inbound and outbound parameters must be specified to execute this command.

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Outbound connections are allowed on a private network, unless a rule explicitly blocks the connection. This allows normal outbound communication, which could be restricted as necessary with additional rules.

V-241998 in V2R2

Title

The Windows Defender Firewall with Advanced Security log size must be configured for private network connections.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Private Profile Tabtab ->> Logging (select Customize), "Size limit (KB)" to "16,384" or greater. In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh command may also be used to configure this setting: "Netsh advfirewall set privateprofile logging maxfilesize 16384" or greater.

Discussion

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 private connection will be set to ensure enough capacity is allocated for audit data.

V-241999 in V2R2

Title

The Windows Defender Firewall with Advanced Security must log dropped packets when connected to a private network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Private Profile Tabtab ->> Logging (select Customize), "Log dropped packets" to "Yes". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set privateprofile logging droppedconnections enable". Oror "Netsh advfirewall set allprofiles logging droppedconnections enable".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Logging of dropped packets for a private network connection will be enabled to maintain an audit trail of potential issues.

V-242000 in V2R2

Title

The Windows Defender Firewall with Advanced Security must log successful connections when connected to a private network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> WindowsMicrosoft Defender Firewall with Advanced Security ->> WindowsMicrosoft Defender Firewall with Advanced Security ->> WindowsMicrosoft Defender Firewall Properties (this link will be in the right pane) ->> Private Profile Tabtab ->> Logging (select Customize), "Logged successful connections" to "Yes". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set privateprofile logging allowedconnections enable". Oror "Netsh advfirewall set allprofiles logging allowedconnections enable".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Logging of successful connections for a private network connection will be enabled to maintain an audit trail if issues are discovered.

V-242001 in V2R2

Title

The Windows Defender Firewall with Advanced Security must block unsolicited inbound connections when connected to a public network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> State, "Inbound connections" to "Block (default)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set publicprofile firewallpolicy blockinbound,allowoutbound". Oror "Netsh advfirewall set allprofiles firewallpolicy blockinbound,allowoutbound". Both inbound and outbound parameters must be specified to execute this command.

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Unsolicited inbound connections may be malicious attempts to gain access to a system. Unsolicited inbound connections, for which there is no rule allowing the connection, will be blocked on a public network.

V-242002 in V2R2

Title

The Windows Defender Firewall with Advanced Security must allow outbound connections, unless a rule explicitly blocks the connection when connected to a public network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> State, "Outbound connections" to "Allow (default)". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set publicprofile firewallpolicy blockinbound,allowoutbound". Oror "Netsh advfirewall set allprofiles firewallpolicy blockinbound,allowoutbound". Both inbound and outbound parameters must be specified to execute this command.

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Outbound connections are allowed on a public network, unless a rule explicitly blocks the connection. This allows normal outbound communication, which could be restricted as necessary with additional rules.

V-242003 in V2R2

Title

The Windows Defender Firewall with Advanced Security local firewall rules must not be merged with Group Policy settings when connected to a public network.

Fix text

If the system is not a member of a domain, this is NA. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> Settings (select Customize) ->> Rule merging, "Apply local firewall rules:" to "No".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Local firewall rules will not be merged with Group Policy settings on a public network to prevent Group Policy settings from being changed.

V-242004 in V2R2

Title

The Windows Defender Firewall with Advanced Security local connection rules must not be merged with Group Policy settings when connected to a public network.

Fix text

If the system is not a member of a domain, this is NA. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> Settings (select Customize) ->> Rule merging, "Apply local connection security rules:" to "No".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Local connection rules will not be merged with Group Policy settings on a public network to prevent Group Policy settings from being changed.

V-242005 in V2R2

Title

The Windows Defender Firewall with Advanced Security log size must be configured for public network connections.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> WindowsMicrosoft Defender Firewall with Advanced Security ->> WindowsMicrosoft Defender Firewall with Advanced Security ->> WindowsMicrosoft Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> Logging (select Customize), "Size limit (KB)" to "16,384" or greater. In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh command may also be used to configure this setting: "Netsh advfirewall set publicprofile logging maxfilesize 16384" or greater.

Discussion

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.

V-242006 in V2R2

Title

The Windows Defender Firewall with Advanced Security must log dropped packets when connected to a public network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> Logging (select Customize), "Log dropped packets" to "Yes". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set publicprofile logging droppedconnections enable". Oror "Netsh advfirewall set allprofiles logging droppedconnections enable".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Logging of dropped packets for a public network connection will be enabled to maintain an audit trail of potential issues.

V-242007 in V2R2

Title

The Windows Defender Firewall with Advanced Security must log successful connections when connected to a public network.

Fix text

The preferred method of configuring the firewall settings is with a policy, particularly in a domain environment. Configure the policy value for Computer Configuration ->> Windows Settings ->> Security Settings ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall with Advanced Security ->> Windows Defender Firewall Properties (this link will be in the right pane) ->> Public Profile Tabtab ->> Logging (select Customize), "Logged successful connections" to "Yes". In addition to using policies, systems may also be configured using the firewall GUI or Netsh commands. These methods may be more appropriate for standalone systems. The configuration settings in the GUI are the same as those specified in the policy above. Windows Microsoft Defender Firewall Properties will be a link in the center pane after opening WindowsMicrosoft Defender Firewall with Advanced Security. The following Netsh commands may also be used to configure this setting: "Netsh advfirewall set publicprofile logging allowedconnections enable". Oror "Netsh advfirewall set allprofiles logging allowedconnections enable".

Discussion

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Logging of successful connections for a public network connection will be enabled to maintain an audit trail if issues are discovered.

V-242008 in V2R2

Check text

This requirement is NA for servers and non domain workstations. Verify firewall exceptions for inbound connections on domain workstations only allow authorized management systems and remote management hosts. Review inbound firewall exception rules in WindowsMicrosoft Defender Firewall with Advanced Security. Firewall rules can be complex and should be reviewed with the firewall administrator. One method for restricting inbound connections is to only allow exceptions for a specific scope of remote IP addresses. If allowed inbound exceptions are not limited to authorized management systems and remote management hosts, this is a finding.

Discussion

Allowing inbound access to domain workstations from other systems may allow lateral movement across systems if credentials are compromised. Limiting inbound connections only from authorized remote management systems will help limit this exposure.

V-242009 in V2R2