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Microsoft Windows Defender Firewall with Advanced Security Security Technical Implementation Guide

Overview

Version Date Finding Count (21) Downloads
2 2023-08-23 CAT I (High): 3 CAT II (Medium): 9 CAT III (Low): 9 Excel JSON XML
Stig Description
This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DOD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.
Classified Public Sensitive  
I - Mission Critical Classified I - Mission Critical Public I - Mission Critical Sensitive II - Mission Critical Classified II - Mission Critical Public II - Mission Critical Sensitive III - Mission Critical Classified III - Mission Critical Public III - Mission Critical Sensitive

Findings - All

Finding ID Severity Title Description
V-242002 High Windows Defender Firewall with Advanced Security must block unsolicited inbound connections when connected to a public network. 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...
V-241997 High Windows Defender Firewall with Advanced Security must block unsolicited inbound connections when connected to a private network. 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...
V-241992 High Windows Defender Firewall with Advanced Security must block unsolicited inbound connections when connected to a domain. 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-242009 Medium Inbound exceptions to the firewall on domain workstations must only allow authorized remote management hosts. 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-242005 Medium Windows Defender Firewall with Advanced Security local connection rules must not be merged with Group Policy settings when connected to a public network. 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-242004 Medium Windows Defender Firewall with Advanced Security local firewall rules must not be merged with Group Policy settings when connected to a public network. 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-242003 Medium Windows Defender Firewall with Advanced Security must allow outbound connections, unless a rule explicitly blocks the connection when connected to a public network. 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-241998 Medium Windows Defender Firewall with Advanced Security must allow outbound connections, unless a rule explicitly blocks the connection when connected to a private network. 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-241993 Medium Windows Defender Firewall with Advanced Security must allow outbound connections, unless a rule explicitly blocks the connection when connected to a domain. 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-241991 Medium Windows Defender Firewall with Advanced Security must be enabled when connected to a public network. 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-241990 Medium Windows Defender Firewall with Advanced Security must be enabled when connected to a private network. 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-241989 Medium Windows Defender Firewall with Advanced Security must be enabled when connected to a domain. 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-242008 Low Windows Defender Firewall with Advanced Security must log successful connections when connected to a public network. 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-242007 Low Windows Defender Firewall with Advanced Security must log dropped packets when connected to a public network. 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-242006 Low Windows Defender Firewall with Advanced Security log size must be configured for public network connections. 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-242001 Low Windows Defender Firewall with Advanced Security must log successful connections when connected to a private network. 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-242000 Low Windows Defender Firewall with Advanced Security must log dropped packets when connected to a private network. 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-241999 Low Windows Defender Firewall with Advanced Security log size must be configured for private network connections. 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-241996 Low Windows Defender Firewall with Advanced Security must log successful connections when connected to a domain. 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-241995 Low Windows Defender Firewall with Advanced Security must log dropped packets when connected to a domain. 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-241994 Low Windows Defender Firewall with Advanced Security log size must be configured for domain connections. 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.