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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000042-GPOS-00020

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must produce audit records containing the full-text recording of successful and unsuccessful attempts to execute the passwd/gpasswd/unix-chkpwd privileged commands.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
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  • SRG-OS-000042-GPOS-00020

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must produce audit records containing the full-text recording of successful and unsuccessful attempts to execute the chage privileged command.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
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  • SRG-OS-000042-GPOS-00020

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must produce audit records containing the full-text recording of successful and unsuccessful attempts to execute the userhelper privileged command.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
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  • SRG-OS-000042-GPOS-00020

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must produce audit records containing the full-text recording of successful and unsuccessful attempts to execute the mount and umount privileged commands.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
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  • SRG-OS-000042-GPOS-00020

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must produce audit records containing the full-text recording of successful and unsuccessful attempts to execute the post-related privileged commands.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
    Show

  • SRG-OS-000042-GPOS-00020

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must produce audit records containing the full-text recording of successful and unsuccessful attempts to execute the opensshrelated privileged commands.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
    Show

  • SRG-OS-000042-GPOS-00020

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must produce audit records containing the full-text recording of successful and unsuccessful attempts to execute the crontab-related privileged commands.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
    Show

  • SRG-OS-000042-GPOS-00021

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must produce audit records containing the individual identities of group account users.

    &lt;VulnDiscussion&gt;Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At...
    Rule Medium Severity
    Show

  • SRG-OS-000341-GPOS-00132

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility.

    &lt;VulnDiscussion&gt;To ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems must be ab...
    Rule Medium Severity
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  • SRG-OS-000342-GPOS-00133

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must offload audit records to a syslog server.

    &lt;VulnDiscussion&gt;Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Offloading is a common p...
    Rule Medium Severity
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  • SRG-OS-000047-GPOS-00023

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must shut down by default upon audit failure (unless availability is an overriding concern).

    &lt;VulnDiscussion&gt;It is critical that when the operating system is at risk of failing to process audit logs as required, it takes action to mit...
    Rule Medium Severity
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  • SRG-OS-000051-GPOS-00024

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must provide the capability to centrally review and analyze audit records from multiple components within the system.

    &lt;VulnDiscussion&gt;Successful incident response and auditing relies on timely, accurate system information and analysis to allow the organizatio...
    Rule Medium Severity
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  • SRG-OS-000355-GPOS-00143

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must compare internal information system clocks at least every 24 hours with a server synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DoD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS).

    &lt;VulnDiscussion&gt;Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...
    Rule Low Severity
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  • SRG-OS-000057-GPOS-00027

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS must protect audit information from unauthorized access.

    &lt;VulnDiscussion&gt;Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confide...
    Rule Medium Severity
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  • SRG-OS-000256-GPOS-00097

    <GroupDescription></GroupDescription>
    Group
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  • Nutanix AOS audit tools must be configured to 0755 or less permissive.

    &lt;VulnDiscussion&gt;Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associ...
    Rule Medium Severity
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  • SRG-OS-000257-GPOS-00098

    <GroupDescription></GroupDescription>
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  • Nutanix AOS audit tools must be owned by root.

    &lt;VulnDiscussion&gt;Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...
    Rule Medium Severity
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  • SRG-OS-000258-GPOS-00099

    <GroupDescription></GroupDescription>
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  • Nutanix AOS audit tools must be group-owned by root.

    &lt;VulnDiscussion&gt;Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...
    Rule Medium Severity
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  • SRG-OS-000278-GPOS-00108

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must use cryptographic mechanisms to protect the integrity of audit tools.

    &lt;VulnDiscussion&gt;Protecting the integrity of the tools used for auditing purposes is a critical step toward ensuring the integrity of audit in...
    Rule High Severity
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  • SRG-OS-000363-GPOS-00150

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must notify designated personnel if baseline configurations are changed in an unauthorized manner.

    &lt;VulnDiscussion&gt;Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...
    Rule Medium Severity
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  • SRG-OS-000364-GPOS-00151

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must not be configured to allow GSSAPIAuthentication.

    &lt;VulnDiscussion&gt;Failure to provide logical access restrictions associated with changes to system configuration may have significant effects o...
    Rule Medium Severity
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  • SRG-OS-000364-GPOS-00151

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must not be configured to allow KerberosAuthentication.

    &lt;VulnDiscussion&gt;Failure to provide logical access restrictions associated with changes to system configuration may have significant effects o...
    Rule Medium Severity
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  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization.

    &lt;VulnDiscussion&gt;Changes to any software components can have significant effects on the overall security of the operating system. This require...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00225

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must prevent the use of dictionary words for passwords.

    &lt;VulnDiscussion&gt;If the operating system allows the user to select passwords based on dictionary words, then this increases the chances of pas...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00226

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must enforce a delay of at least four seconds between logon prompts following a failed logon attempt.

    &lt;VulnDiscussion&gt;Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain acc...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • Nutanix AOS must be configured to run SCMA daily.

    &lt;VulnDiscussion&gt;The Nutanix platform leverages the use of the Security Configuration Management Automation (SCMA) framework to ensure secure ...
    Rule Medium Severity
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