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III - Administrative Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000004-GPOS-00004

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/group.

    &lt;VulnDiscussion&gt;Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...
    Rule Medium Severity
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  • SRG-OS-000004-GPOS-00004

    <GroupDescription></GroupDescription>
    Group
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  • The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/gshadow.

    &lt;VulnDiscussion&gt;Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...
    Rule Medium Severity
    Show

  • SRG-OS-000004-GPOS-00004

    <GroupDescription></GroupDescription>
    Group
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  • The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/shadow.

    &lt;VulnDiscussion&gt;Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...
    Rule Medium Severity
    Show

  • SRG-OS-000004-GPOS-00004

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/security/opasswd.

    &lt;VulnDiscussion&gt;Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...
    Rule Medium Severity
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  • SRG-OS-000466-GPOS-00210

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must audit all uses of the unlink, unlinkat, rename, renameat, and rmdir syscalls.

    &lt;VulnDiscussion&gt;If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect an...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must send rsyslog output to a log aggregation server.

    &lt;VulnDiscussion&gt;Sending rsyslog output to another system ensures that the logs cannot be removed or modified in the event that the system is ...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured so that the rsyslog daemon does not accept log messages from other servers unless the server is being used for log aggregation.

    &lt;VulnDiscussion&gt;Unintentionally running a rsyslog server accepting remote messages puts the system at increased risk. Malicious rsyslog messa...
    Rule Medium Severity
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  • SRG-OS-000027-GPOS-00008

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must limit the number of concurrent sessions to 10 for all accounts and/or account types.

    &lt;VulnDiscussion&gt;Operating system management includes the ability to control the number of users and user sessions that utilize an operating s...
    Rule Low Severity
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  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the Ports, Protocols, and Services Management Component Local Service Assessment (PPSM CLSA) and vulnerability assessments.

    &lt;VulnDiscussion&gt;In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e....
    Rule Medium Severity
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  • SRG-OS-000033-GPOS-00014

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  • The Red Hat Enterprise Linux 7 operating system must implement DoD-approved encryption to protect the confidentiality of SSH connections.

    &lt;VulnDiscussion&gt;Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be r...
    Rule Medium Severity
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  • SRG-OS-000163-GPOS-00072

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  • The Red Hat Enterprise Linux operating system must be configured so that all network connections associated with a communication session are terminated at the end of the session or after 15 minutes of inactivity from the user at a command prompt, except to fulfill documented and validated mission requirements.

    &lt;VulnDiscussion&gt;Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take c...
    Rule Medium Severity
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  • SRG-OS-000023-GPOS-00006

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  • The Red Hat Enterprise Linux operating system must display the Standard Mandatory DoD Notice and Consent Banner immediately prior to, or as part of, remote access logon prompts.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the publicly accessible operating system en...
    Rule Medium Severity
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  • SRG-OS-000250-GPOS-00093

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  • The Red Hat Enterprise Linux operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) authentication communications.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Cryptograph...
    Rule Medium Severity
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  • SRG-OS-000250-GPOS-00093

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) communications.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Cryptograph...
    Rule Medium Severity
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  • SRG-OS-000250-GPOS-00093

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) communications.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Cryptograph...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must implement virtual address space randomization.

    &lt;VulnDiscussion&gt;Address space layout randomization (ASLR) makes it more difficult for an attacker to predict the location of attack code he o...
    Rule Medium Severity
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  • SRG-OS-000423-GPOS-00187

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  • The Red Hat Enterprise Linux operating system must be configured so that all networked systems have SSH installed.

    &lt;VulnDiscussion&gt;Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected commu...
    Rule Medium Severity
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  • SRG-OS-000423-GPOS-00187

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  • The Red Hat Enterprise Linux operating system must be configured so that all networked systems use SSH for confidentiality and integrity of transmitted and received information as well as information during preparation for transmission.

    &lt;VulnDiscussion&gt;Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected commu...
    Rule Medium Severity
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  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured so that all network connections associated with SSH traffic are terminated after 10 minutes of becoming unresponsive.

    &lt;VulnDiscussion&gt;Terminating an unresponsive SSH session within a short time period reduces the window of opportunity for unauthorized personn...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using RSA rhosts authentication.

    &lt;VulnDiscussion&gt;Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, ...
    Rule Medium Severity
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  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured so that all network connections associated with SSH traffic terminate after becoming unresponsive.

    &lt;VulnDiscussion&gt;Terminating an unresponsive SSH session within a short time period reduces the window of opportunity for unauthorized personn...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using rhosts authentication.

    &lt;VulnDiscussion&gt;Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, ...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must display the date and time of the last successful account logon upon an SSH logon.

    &lt;VulnDiscussion&gt;Providing users with feedback on when account accesses via SSH last occurred facilitates user recognition and reporting of un...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must not permit direct logons to the root account using remote access via SSH.

    &lt;VulnDiscussion&gt;Even though the communications channel may be encrypted, an additional layer of security is gained by extending the policy of...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using known hosts authentication.

    &lt;VulnDiscussion&gt;Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, ...
    Rule Medium Severity
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Node 2

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