II - Mission Support Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Users with Administrative privileges must have separate accounts for administrative duties and normal operational tasks.
<VulnDiscussion>Using a privileged account to perform routine functions makes the computer vulnerable to malicious software inadvertently int...Rule High Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
Passwords for the built-in Administrator account must be changed at least every 60 days.
<VulnDiscussion>The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the password. The ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Administrative accounts must not be used with applications that access the Internet, such as web browsers, or with potential Internet sources, such as email.
<VulnDiscussion>Using applications that access the Internet or have potential Internet sources using administrative privileges exposes a syst...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Members of the Backup Operators group must have separate accounts for backup duties and normal operational tasks.
<VulnDiscussion>Backup Operators are able to read and write to any file in the system, regardless of the rights assigned to it. Backup and re...Rule Medium Severity -
SRG-OS-000078-GPOS-00046
<GroupDescription></GroupDescription>Group -
Manually managed application account passwords must be at least 14 characters in length.
<VulnDiscussion>Application/service account passwords must be of sufficient length to prevent being easily cracked. Application/service accou...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Manually managed application account passwords must be changed at least annually or when a system administrator with knowledge of the password leaves the organization.
<VulnDiscussion>Setting application account passwords to expire may cause applications to stop functioning. However, not changing them on a r...Rule Medium Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
Shared user accounts must not be permitted on the system.
<VulnDiscussion>Shared accounts (accounts where two or more people log on with the same user identification) do not provide adequate identifi...Rule Medium Severity -
SRG-OS-000370-GPOS-00155
<GroupDescription></GroupDescription>Group -
Windows Server 2016 must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.
<VulnDiscussion>Using an allowlist provides a configuration management method to allow the execution of only authorized software. Using only ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Windows Server 2016 domain-joined systems must have a Trusted Platform Module (TPM) enabled and ready for use.
<VulnDiscussion>Credential Guard uses virtualization-based security to protect data that could be used in credential theft attacks if comprom...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Systems must be maintained at a supported servicing level.
<VulnDiscussion>Systems at unsupported servicing levels will not receive security updates for new vulnerabilities, which leave them subject t...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Windows Server 2016 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-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Servers must have a host-based intrusion detection or prevention system.
<VulnDiscussion>A properly configured Host-based Intrusion Detection System (HIDS) or Host-based Intrusion Prevention System (HIPS) provides ...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Local volumes must use a format that supports NTFS attributes.
<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-000312-GPOS-00122
<GroupDescription></GroupDescription>Group -
Permissions for the system drive root directory (usually C:\) 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-000312-GPOS-00122
<GroupDescription></GroupDescription>Group -
Permissions for program file 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-000312-GPOS-00122
<GroupDescription></GroupDescription>Group -
Permissions for the Windows installation directory 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-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
Default permissions for the HKEY_LOCAL_MACHINE registry hive must be maintained.
<VulnDiscussion>The registry is integral to the function, security, and stability of the Windows system. Changing the system's registry permi...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Non-administrative accounts or groups must only have print permissions on printer shares.
<VulnDiscussion>Windows shares are a means by which files, folders, printers, and other resources can be published for network users to acces...Rule Low Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
Outdated or unused accounts must be removed from the system or disabled.
<VulnDiscussion>Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer...Rule Medium Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
Windows Server 2016 accounts must require passwords.
<VulnDiscussion>The lack of password protection enables anyone to gain access to the information system, which opens a backdoor opportunity f...Rule Medium Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
Passwords must be configured to expire.
<VulnDiscussion>Passwords that do not expire or are reused increase the exposure of a password with greater probability of being discovered o...Rule Medium Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
System files must be monitored for unauthorized changes.
<VulnDiscussion>Monitoring system files for changes against a baseline on a regular basis may help detect the possible introduction of malici...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 on a system provide network access. To prevent exposing sensitive information, where shares are necessary, permissions...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Software certificate installation files must be removed from Windows Server 2016.
<VulnDiscussion>Use of software certificates and their accompanying installation files for end users to access resources is less secure than ...Rule Medium Severity -
SRG-OS-000185-GPOS-00079
<GroupDescription></GroupDescription>Group -
Systems requiring data at rest protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest.
<VulnDiscussion>This requirement addresses protection of user-generated data as well as operating system-specific configuration data. Organiz...Rule High Severity
Node 2
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