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Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00228

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must define default permissions for all authenticated users in such a way that the user can only read and modify their own files.

    &lt;VulnDiscussion&gt;Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary acce...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00229

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must not allow an unattended or automatic logon to the system.

    &lt;VulnDiscussion&gt;Failure to restrict system access to authenticated users negatively impacts operating system security.&lt;/VulnDiscussion&gt;...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00230

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must be configured so that all local interactive user home directories have mode "0750" or less permissive.

    &lt;VulnDiscussion&gt;Excessive permissions on local interactive user home directories may allow unauthorized access to user files by other users.&...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00232

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enable an application firewall, if available.

    &lt;VulnDiscussion&gt;Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls ...
    Rule Medium Severity
  • SRG-OS-000368-GPOS-00154

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must be configured with nodev, nosuid, and noexec options for /dev/shm.

    &lt;VulnDiscussion&gt;Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may pr...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must not have the rsh-server package installed.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must not have the ypserv package installed.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must not have the telnet-server package installed.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.

    &lt;VulnDiscussion&gt;To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embeddi...
    Rule Medium Severity
  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must require users to reauthenticate for privilege escalation.

    &lt;VulnDiscussion&gt;Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operati...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must implement replay-resistant authentication mechanisms for network access to privileged accounts.

    &lt;VulnDiscussion&gt;A replay attack may enable an unauthorized user to gain access to the operating system. Authentication sessions between the a...
    Rule Medium Severity
  • SRG-OS-000114-GPOS-00059

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must be configured to disable USB mass storage devices.

    &lt;VulnDiscussion&gt;Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Per...
    Rule Medium Severity
  • SRG-OS-000118-GPOS-00060

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must be configured to disable user accounts after the password expires.

    &lt;VulnDiscussion&gt;Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potenti...
    Rule Low Severity
  • SRG-OS-000069-GPOS-00037

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enforce password complexity by requiring that at least one uppercase character be used.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
  • SRG-OS-000070-GPOS-00038

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enforce password complexity by requiring that at least one lowercase character be used.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
  • SRG-OS-000071-GPOS-00039

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enforce password complexity by requiring that at least one numeric character be used.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
  • SRG-OS-000078-GPOS-00046

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enforce a minimum 15 character password length.

    &lt;VulnDiscussion&gt;The shorter the password, the lower the number of possible combinations that need to be tested before the password is comprom...
    Rule Medium Severity
  • SRG-OS-000266-GPOS-00101

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enforce password complexity by requiring that at least one special character be used.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity o...
    Rule Medium Severity
  • SRG-OS-000072-GPOS-00040

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must require the change of at least 50 percent of the total number of characters when passwords are changed.

    &lt;VulnDiscussion&gt;If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of...
    Rule Medium Severity
  • SRG-OS-000072-GPOS-00040

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must require the change of at least four character classes when passwords are changed.

    &lt;VulnDiscussion&gt;If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of...
    Rule Medium Severity
  • SRG-OS-000072-GPOS-00040

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must require the maximum number of repeating characters be limited to three when passwords are changed.

    &lt;VulnDiscussion&gt;If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of...
    Rule Medium Severity
  • SRG-OS-000072-GPOS-00040

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must require the maximum number of repeating characters of the same character class be limited to four when passwords are changed.

    &lt;VulnDiscussion&gt;If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of...
    Rule Medium Severity
  • SRG-OS-000073-GPOS-00041

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must store only encrypted representations of passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule High Severity
  • SRG-OS-000075-GPOS-00043

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enforce 24 hours/1 day as the minimum password lifetime.

    &lt;VulnDiscussion&gt;Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enfo...
    Rule Medium Severity
  • SRG-OS-000076-GPOS-00044

    <GroupDescription></GroupDescription>
    Group
  • Nutanix AOS must enforce a 60-day maximum password lifetime restriction.

    &lt;VulnDiscussion&gt;Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the ...
    Rule Medium Severity

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