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Microsoft Windows Server 2019 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Windows Server 2019 must have the US DoD CCEB Interoperability Root CA cross-certificates in the Untrusted Certificates Store on unclassified systems.

    <VulnDiscussion>To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to t...
    Rule Medium Severity
  • SRG-OS-000067-GPOS-00035

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 users must be required to enter a password to access private keys stored on the computer.

    &lt;VulnDiscussion&gt;If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the ne...
    Rule Medium Severity
  • SRG-OS-000069-GPOS-00037

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 must have the built-in Windows password complexity policy enabled.

    &lt;VulnDiscussion&gt;The use of complex passwords increases their strength against attack. The built-in Windows password complexity policy require...
    Rule Medium Severity
  • SRG-OS-000073-GPOS-00041

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 reversible password encryption must be disabled.

    &lt;VulnDiscussion&gt;Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords, which ...
    Rule High Severity
  • SRG-OS-000073-GPOS-00041

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 must be configured to prevent the storage of the LAN Manager hash of passwords.

    &lt;VulnDiscussion&gt;The LAN Manager hash uses a weak encryption algorithm and there are several tools available that use this hash to retrieve ac...
    Rule High Severity
  • SRG-OS-000074-GPOS-00042

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 unencrypted passwords must not be sent to third-party Server Message Block (SMB) servers.

    &lt;VulnDiscussion&gt;Some non-Microsoft SMB servers only support unencrypted (plain-text) password authentication. Sending plain-text passwords ac...
    Rule Medium Severity
  • SRG-OS-000075-GPOS-00043

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 minimum password age must be configured to at least one day.

    &lt;VulnDiscussion&gt;Permitting passwords to be changed in immediate succession within the same day allows users to cycle passwords through their ...
    Rule Medium Severity
  • SRG-OS-000076-GPOS-00044

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 passwords for the built-in Administrator account must be changed at least every 60 days.

    &lt;VulnDiscussion&gt;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-000076-GPOS-00044

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 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
  • SRG-OS-000076-GPOS-00044

    <GroupDescription></GroupDescription>
    Group
  • Windows Server 2019 maximum password age must be configured to 60 days or less.

    &lt;VulnDiscussion&gt;The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Sch...
    Rule Medium Severity
  • SRG-OS-000077-GPOS-00045

    <GroupDescription></GroupDescription>
    Group

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