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I - Mission Critical Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 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
  • SRG-OS-000105-GPOS-00052

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Active Directory user accounts, including administrators, must be configured to require the use of a Common Access Card (CAC), Personal Identity Verification (PIV)-compliant hardware token, or Alternate Logon Token (ALT) for user authentication.

    &lt;VulnDiscussion&gt;Smart cards such as the CAC support a two-factor authentication technique. This provides a higher level of trust in the asser...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Kerberos user logon restrictions must be enforced.

    &lt;VulnDiscussion&gt;This policy setting determines whether the Kerberos Key Distribution Center (KDC) validates every request for a session ticke...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Kerberos service ticket maximum lifetime must be limited to 600 minutes or less.

    &lt;VulnDiscussion&gt;This setting determines the maximum amount of time (in minutes) that a granted session ticket can be used to access a particu...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Kerberos user ticket lifetime must be limited to 10 hours or less.

    &lt;VulnDiscussion&gt;In Kerberos, there are two types of tickets: Ticket Granting Tickets (TGTs) and Service Tickets. Kerberos tickets have a limi...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Kerberos policy user ticket renewal maximum lifetime must be limited to seven days or less.

    &lt;VulnDiscussion&gt;This setting determines the period of time (in days) during which a user's TGT may be renewed. This security configuration li...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 computer clock synchronization tolerance must be limited to five minutes or less.

    &lt;VulnDiscussion&gt;This setting determines the maximum time difference (in minutes) that Kerberos will tolerate between the time on a client's c...
    Rule Medium Severity
  • SRG-OS-000118-GPOS-00060

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 outdated or unused accounts must be removed 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
  • SRG-OS-000120-GPOS-00061

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.

    &lt;VulnDiscussion&gt;Certain encryption types are no longer considered secure. The DES and RC4 encryption suites must not be used for Kerberos enc...
    Rule Medium Severity
  • SRG-OS-000121-GPOS-00062

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 must have the built-in guest account disabled.

    &lt;VulnDiscussion&gt;A system faces an increased vulnerability threat if the built-in guest account is not disabled. This is a known account that ...
    Rule Medium Severity
  • SRG-OS-000123-GPOS-00064

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 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
  • SRG-OS-000125-GPOS-00065

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Windows Remote Management (WinRM) client must not use Basic authentication.

    &lt;VulnDiscussion&gt;Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will...
    Rule High Severity
  • SRG-OS-000125-GPOS-00065

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Windows Remote Management (WinRM) client must not use Digest authentication.

    &lt;VulnDiscussion&gt;Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks. Disallowing Digest a...
    Rule Medium Severity
  • SRG-OS-000125-GPOS-00065

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Windows Remote Management (WinRM) service must not use Basic authentication.

    &lt;VulnDiscussion&gt;Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will...
    Rule High Severity
  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 administrator accounts must not be enumerated during elevation.

    &lt;VulnDiscussion&gt;Enumeration of administrator accounts when elevating can provide part of the logon information to an unauthorized user. This ...
    Rule Medium Severity
  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 local administrator accounts must have their privileged token filtered to prevent elevated privileges from being used over the network on domain-joined member servers.

    &lt;VulnDiscussion&gt;A compromised local administrator account can provide means for an attacker to move laterally between domain systems. With U...
    Rule Medium Severity
  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 UIAccess applications must not be allowed to prompt for elevation without using the secure desktop.

    &lt;VulnDiscussion&gt;User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...
    Rule Medium Severity
  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 User Account Control must, at a minimum, prompt administrators for consent on the secure desktop.

    &lt;VulnDiscussion&gt;User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...
    Rule Medium Severity
  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 User Account Control must be configured to detect application installations and prompt for elevation.

    &lt;VulnDiscussion&gt;User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative account...
    Rule Medium Severity
  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 User Account Control (UAC) must only elevate UIAccess applications that are installed in secure locations.

    &lt;VulnDiscussion&gt;UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. T...
    Rule Medium Severity
  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 User Account Control (UAC) must virtualize file and registry write failures to per-user locations.

    &lt;VulnDiscussion&gt;UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. T...
    Rule Medium Severity
  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 non-system-created file shares 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
  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 Remote Desktop Services must prevent drive redirection.

    &lt;VulnDiscussion&gt;Preventing users from sharing the local drives on their client computers with Remote Session Hosts that they access helps red...
    Rule Medium Severity
  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 data files owned by users must be on a different logical partition from the directory server data files.

    &lt;VulnDiscussion&gt;When directory service data files, especially for directories used for identification, authentication, or authorization, resi...
    Rule Medium Severity
  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 must not allow anonymous enumeration of shares.

    &lt;VulnDiscussion&gt;Allowing anonymous logon users (null session connections) to list all account names and enumerate all shared resources can pr...
    Rule High Severity

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