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Microsoft Windows Server 2016 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • 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
    Show

  • SRG-OS-000312-GPOS-00122

    <GroupDescription></GroupDescription>
    Group
    Show

  • Permissions for the Windows installation directory must conform to minimum requirements.

    &lt;VulnDiscussion&gt;Changing the system's file and directory permissions allows the possibility of unauthorized and anonymous modification to the...
    Rule Medium Severity
    Show

  • SRG-OS-000324-GPOS-00125

    <GroupDescription></GroupDescription>
    Group
    Show

  • Default permissions for the HKEY_LOCAL_MACHINE registry hive must be maintained.

    &lt;VulnDiscussion&gt;The registry is integral to the function, security, and stability of the Windows system. Changing the system's registry permi...
    Rule Medium Severity
    Show

  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
    Show

  • Non-administrative accounts or groups must only have print permissions on printer shares.

    &lt;VulnDiscussion&gt;Windows shares are a means by which files, folders, printers, and other resources can be published for network users to acces...
    Rule Low Severity
    Show

  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
    Show

  • Outdated or unused accounts must be removed from the system or disabled.

    &lt;VulnDiscussion&gt;Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer...
    Rule Medium Severity
    Show

  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
    Show

  • Windows Server 2016 accounts must require passwords.

    &lt;VulnDiscussion&gt;The lack of password protection enables anyone to gain access to the information system, which opens a backdoor opportunity f...
    Rule Medium Severity
    Show

  • SRG-OS-000076-GPOS-00044

    <GroupDescription></GroupDescription>
    Group
    Show

  • Passwords must be configured to expire.

    &lt;VulnDiscussion&gt;Passwords that do not expire or are reused increase the exposure of a password with greater probability of being discovered o...
    Rule Medium Severity
    Show

  • SRG-OS-000363-GPOS-00150

    <GroupDescription></GroupDescription>
    Group
    Show

  • System files must be monitored for unauthorized changes.

    &lt;VulnDiscussion&gt;Monitoring system files for changes against a baseline on a regular basis may help detect the possible introduction of malici...
    Rule Medium Severity
    Show

  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
    Show

  • Non-system-created file shares on a system must limit access to groups that require it.

    &lt;VulnDiscussion&gt;Shares on a system provide network access. To prevent exposing sensitive information, where shares are necessary, permissions...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • Software certificate installation files must be removed from Windows Server 2016.

    &lt;VulnDiscussion&gt;Use of software certificates and their accompanying installation files for end users to access resources is less secure than ...
    Rule Medium Severity
    Show

  • SRG-OS-000185-GPOS-00079

    <GroupDescription></GroupDescription>
    Group
    Show

  • Systems requiring data at rest protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest.

    &lt;VulnDiscussion&gt;This requirement addresses protection of user-generated data as well as operating system-specific configuration data. Organiz...
    Rule High Severity
    Show

  • SRG-OS-000425-GPOS-00189

    <GroupDescription></GroupDescription>
    Group
    Show

  • Protection methods such as TLS, encrypted VPNs, or IPsec must be implemented if the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process.

    &lt;VulnDiscussion&gt;Information can be either unintentionally or maliciously disclosed or modified during preparation for transmission, for examp...
    Rule Medium Severity
    Show

  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
    Show

  • The roles and features required by the system must be documented.

    &lt;VulnDiscussion&gt;Unnecessary roles and features increase the attack surface of a system. Limiting roles and features of a system to only those...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • A host-based firewall must be installed and enabled on the system.

    &lt;VulnDiscussion&gt;A firewall provides a line of defense against attack, allowing or blocking inbound and outbound connections based on a set of...
    Rule Medium Severity
    Show

  • SRG-OS-000191-GPOS-00080

    <GroupDescription></GroupDescription>
    Group
    Show

  • Windows Server 2016 must employ automated mechanisms to determine the state of system components with regard to flaw remediation using the following frequency: continuously, where Endpoint Security Solution (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).

    &lt;VulnDiscussion&gt;Without the use of automated mechanisms to scan for security flaws on a continuous and/or periodic basis, the operating syste...
    Rule Medium Severity
    Show

  • SRG-OS-000002-GPOS-00002

    <GroupDescription></GroupDescription>
    Group
    Show

  • Windows Server 2016 must automatically remove or disable temporary user accounts after 72 hours.

    &lt;VulnDiscussion&gt;If temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain...
    Rule Medium Severity
    Show

  • SRG-OS-000123-GPOS-00064

    <GroupDescription></GroupDescription>
    Group
    Show

  • Windows Server 2016 must automatically remove or disable emergency accounts after the crisis is resolved or within 72 hours.

    &lt;VulnDiscussion&gt;Emergency administrator accounts are privileged accounts established in response to crisis situations where the need for rapi...
    Rule Medium Severity
    Show

  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Fax Server role must not be installed.

    &lt;VulnDiscussion&gt;Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authe...
    Rule Medium Severity
    Show

  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Microsoft FTP service must not be installed unless required.

    &lt;VulnDiscussion&gt;Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authe...
    Rule Medium Severity
    Show

  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
    Show

  • The Peer Name Resolution Protocol must not be installed.

    &lt;VulnDiscussion&gt;Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authe...
    Rule Medium Severity
    Show

  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
    Show

  • Simple TCP/IP Services must not be installed.

    &lt;VulnDiscussion&gt;Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authe...
    Rule Medium Severity
    Show

  • The Server Message Block (SMB) v1 protocol must be disabled on the SMB client.

    &lt;VulnDiscussion&gt;SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks s...
    Rule Medium Severity
    Show

  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
    Show

  • Windows PowerShell 2.0 must not be installed.

    &lt;VulnDiscussion&gt;Windows PowerShell 5.0 added advanced logging features that can provide additional detail when malware has been run on a syst...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • FTP servers must be configured to prevent anonymous logons.

    &lt;VulnDiscussion&gt;The FTP service allows remote users to access shared files and directories. Allowing anonymous FTP connections makes user aud...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • FTP servers must be configured to prevent access to the system drive.

    &lt;VulnDiscussion&gt;The FTP service allows remote users to access shared files and directories that could provide access to system resources and ...
    Rule Medium Severity
    Show

  • SRG-OS-000355-GPOS-00143

    <GroupDescription></GroupDescription>
    Group
    Show

  • The time service must synchronize with an appropriate DoD time source.

    &lt;VulnDiscussion&gt;The Windows Time Service controls time synchronization settings. Time synchronization is essential for authentication and aud...
    Rule Low Severity
    Show

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