II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows 10 domain-joined systems must have a Trusted Platform Module (TPM) enabled and ready for use.
<VulnDiscussion>Credential Guard uses virtualization-based security to protect information that could be used in credential theft attacks if ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows 10 systems must have Unified Extensible Firmware Interface (UEFI) firmware and be configured to run in UEFI mode, not Legacy BIOS.
<VulnDiscussion>UEFI provides additional security features in comparison to legacy BIOS firmware, including Secure Boot. UEFI is required to ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Secure Boot must be enabled on Windows 10 systems.
<VulnDiscussion>Secure Boot is a standard that ensures systems boot only to a trusted operating system. Secure Boot is required to support ad...Rule Low Severity -
SRG-OS-000191-GPOS-00080
<GroupDescription></GroupDescription>Group -
Windows 10 must employ automated mechanisms to determine the state of system components with regard to flaw remediation using the following frequency: Continuously, where ESS is used; 30 days, for any additional internal network scans not covered by ESS; and annually, for external scans by Computer Network Defense Service Provider (CNDSP).
<VulnDiscussion>An approved tool for continuous network scanning must be installed and configured to run. Without the use of automated mecha...Rule Medium Severity -
SRG-OS-000185-GPOS-00079
<GroupDescription></GroupDescription>Group -
Windows 10 information systems must use BitLocker to encrypt all disks to protect the confidentiality and integrity of all information at rest.
<VulnDiscussion>If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data acc...Rule High Severity -
SRG-OS-000185-GPOS-00079
<GroupDescription></GroupDescription>Group -
Windows 10 systems must use a BitLocker PIN for pre-boot authentication.
<VulnDiscussion>If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data acc...Rule High Severity -
SRG-OS-000185-GPOS-00079
<GroupDescription></GroupDescription>Group -
Windows 10 systems must use a BitLocker PIN with a minimum length of six digits for pre-boot authentication.
<VulnDiscussion>If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data acc...Rule High Severity -
SRG-OS-000370-GPOS-00155
<GroupDescription></GroupDescription>Group -
The operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.
<VulnDiscussion>Utilizing an allowlist provides a configuration management method for allowing the execution of only authorized software. Usi...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows 10 systems must be maintained at a supported servicing level.
<VulnDiscussion>Windows 10 is maintained by Microsoft at servicing levels for specific periods of time to support Windows as a Service. Syste...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Windows 10 system must use an anti-virus program.
<VulnDiscussion>Malicious software can establish a base on individual desktops and servers. Employing an automated mechanism to detect this t...Rule High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Local volumes must be formatted using NTFS.
<VulnDiscussion>The ability to set access permissions and auditing is critical to maintaining the security and proper access controls of a sy...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Alternate operating systems must not be permitted on the same system.
<VulnDiscussion>Allowing other operating systems to run on a secure system may allow security to be circumvented.</VulnDiscussion><F...Rule Medium Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
Non system-created file shares on a system must limit access to groups that require it.
<VulnDiscussion>Shares which provide network access, should not typically exist on a workstation except for system-created administrative sha...Rule Medium Severity -
SRG-OS-000118-GPOS-00060
<GroupDescription></GroupDescription>Group -
Unused accounts must be disabled or removed from the system after 35 days of inactivity.
<VulnDiscussion>Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer...Rule Low Severity -
SRG-OS-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
Only accounts responsible for the administration of a system must have Administrator rights on the system.
<VulnDiscussion>An account that does not have Administrator duties must not have Administrator rights. Such rights would allow the account t...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Only accounts responsible for the backup operations must be members of the Backup Operators group.
<VulnDiscussion>Backup Operators are able to read and write to any file in the system, regardless of the rights assigned to it. Backup and r...Rule Medium Severity -
SRG-OS-000095-GPOS-00049
<GroupDescription></GroupDescription>Group -
Only authorized user accounts must be allowed to create or run virtual machines on Windows 10 systems.
<VulnDiscussion>Allowing other operating systems to run on a secure system may allow users to circumvent security. For Hyper-V, preventing un...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Standard local user accounts must not exist on a system in a domain.
<VulnDiscussion>To minimize potential points of attack, local user accounts, other than built-in accounts and local administrator accounts, m...Rule Low Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
Accounts must be configured to require password expiration.
<VulnDiscussion>Passwords that do not expire increase exposure with a greater probability of being discovered or cracked.</VulnDiscussion&...Rule Medium Severity -
SRG-OS-000312-GPOS-00122
<GroupDescription></GroupDescription>Group -
Permissions for system files and directories must conform to minimum requirements.
<VulnDiscussion>Changing the system's file and directory permissions allows the possibility of unauthorized and anonymous modification to the...Rule Medium Severity -
SRG-OS-000095-GPOS-00049
<GroupDescription></GroupDescription>Group -
Internet Information System (IIS) or its subcomponents must not be installed on a workstation.
<VulnDiscussion>Installation of Internet Information System (IIS) may allow unauthorized internet services to be hosted. Websites must only ...Rule High Severity -
SRG-OS-000096-GPOS-00050
<GroupDescription></GroupDescription>Group -
Simple Network Management Protocol (SNMP) must not be installed on the system.
<VulnDiscussion>Some protocols and services do not support required security features, such as encrypting passwords or traffic.</VulnDiscu...Rule Medium Severity -
SRG-OS-000095-GPOS-00049
<GroupDescription></GroupDescription>Group -
Simple TCP/IP Services must not be installed on the system.
<VulnDiscussion>Some protocols and services do not support required security features, such as encrypting passwords or traffic.</VulnDiscu...Rule Medium Severity -
SRG-OS-000096-GPOS-00050
<GroupDescription></GroupDescription>Group -
The Telnet Client must not be installed on the system.
<VulnDiscussion>Some protocols and services do not support required security features, such as encrypting passwords or traffic.</VulnDiscu...Rule Medium Severity -
SRG-OS-000096-GPOS-00050
<GroupDescription></GroupDescription>Group -
The TFTP Client must not be installed on the system.
<VulnDiscussion>Some protocols and services do not support required security features, such as encrypting passwords or traffic.</VulnDiscu...Rule Medium Severity
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