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II - Mission Support Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
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  • The Photon operating system must not have duplicate User IDs (UIDs).

    &lt;VulnDiscussion&gt;To ensure accountability and prevent unauthenticated access, organizational users must be uniquely identified and authenticat...
    Rule Medium Severity
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  • SRG-OS-000120-GPOS-00061

    <GroupDescription></GroupDescription>
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  • The Photon operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module.

    &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-000138-GPOS-00069

    <GroupDescription></GroupDescription>
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  • The Photon operating system must restrict access to the kernel message buffer.

    &lt;VulnDiscussion&gt;Restricting access to the kernel message buffer limits access only to root. This prevents attackers from gaining additional s...
    Rule Medium Severity
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  • SRG-OS-000142-GPOS-00071

    <GroupDescription></GroupDescription>
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  • The Photon operating system must be configured to use TCP syncookies.

    &lt;VulnDiscussion&gt;A TCP SYN flood attack can cause a Denial of Service (DOS) by filling a system's TCP connection table with connections in the...
    Rule Medium Severity
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  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
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  • The Photon operating system must terminate idle Secure Shell (SSH) sessions after 15 minutes.

    &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-000205-GPOS-00083

    <GroupDescription></GroupDescription>
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  • The Photon operating system /var/log directory must be restricted.

    &lt;VulnDiscussion&gt;Any operating system providing too much information in error messages risks compromising the data and security of the structu...
    Rule Medium Severity
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  • SRG-OS-000206-GPOS-00084

    <GroupDescription></GroupDescription>
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  • The Photon operating system must reveal error messages only to authorized users.

    &lt;VulnDiscussion&gt;Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an orga...
    Rule Medium Severity
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  • SRG-OS-000239-GPOS-00089

    <GroupDescription></GroupDescription>
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  • The Photon operating system must audit all account modifications.

    &lt;VulnDiscussion&gt;Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...
    Rule Medium Severity
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  • SRG-OS-000241-GPOS-00091

    <GroupDescription></GroupDescription>
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  • The Photon operating system must audit all account removal actions.

    &lt;VulnDiscussion&gt;When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual ...
    Rule Medium Severity
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  • SRG-OS-000250-GPOS-00093

    <GroupDescription></GroupDescription>
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  • The Photon operating system must implement only approved ciphers to protect the integrity of remote access sessions.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote acce...
    Rule High Severity
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  • SRG-OS-000254-GPOS-00095

    <GroupDescription></GroupDescription>
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  • The Photon operating system must initiate session audits at system startup.

    &lt;VulnDiscussion&gt;If auditing is enabled late in the startup process, the actions of some startup processes may not be audited. Some audit syst...
    Rule Medium Severity
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  • SRG-OS-000256-GPOS-00097

    <GroupDescription></GroupDescription>
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  • The Photon operating system must protect audit tools from unauthorized access.

    &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-000266-GPOS-00101

    <GroupDescription></GroupDescription>
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  • The Photon operating system 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
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  • SRG-OS-000278-GPOS-00108

    <GroupDescription></GroupDescription>
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  • The Photon operating system 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-000279-GPOS-00109

    <GroupDescription></GroupDescription>
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  • The operating system must automatically terminate a user session after inactivity time-outs have expired.

    &lt;VulnDiscussion&gt;Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...
    Rule Medium Severity
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  • SRG-OS-000324-GPOS-00125

    <GroupDescription></GroupDescription>
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  • The Photon operating system must enable symlink access control protection in the kernel.

    &lt;VulnDiscussion&gt;By enabling the fs.protected_symlinks kernel parameter, symbolic links are permitted to be followed only when outside a stick...
    Rule High Severity
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  • SRG-OS-000327-GPOS-00127

    <GroupDescription></GroupDescription>
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  • The Photon operating system must audit the execution of privileged functions.

    &lt;VulnDiscussion&gt;Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external enti...
    Rule Medium Severity
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  • SRG-OS-000329-GPOS-00128

    <GroupDescription></GroupDescription>
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  • The Photon operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur.

    &lt;VulnDiscussion&gt;By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...
    Rule Medium Severity
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  • SRG-OS-000341-GPOS-00132

    <GroupDescription></GroupDescription>
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  • The Photon operating system must allocate audit record storage capacity to store audit records when audit records are not immediately sent to a central audit record storage facility.

    &lt;VulnDiscussion&gt;Audit logs are most useful when accessible by date, rather than size. This can be accomplished through a combination of an au...
    Rule Low Severity
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  • SRG-OS-000343-GPOS-00134

    <GroupDescription></GroupDescription>
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  • The Photon operating system must immediately notify the SA and ISSO when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity.

    &lt;VulnDiscussion&gt;If security personnel are not notified immediately when storage volume reaches 75 percent utilization, they are unable to pla...
    Rule Low Severity
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  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
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  • The Photon operating system TDNF package management tool must cryptographically verify the authenticity of all software packages during installation.

    &lt;VulnDiscussion&gt;Installation of any nontrusted software, patches, service packs, device drivers, or operating system components can significa...
    Rule High Severity
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  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
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  • The Photon operating system 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 operat...
    Rule Medium Severity
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  • SRG-OS-000433-GPOS-00193

    <GroupDescription></GroupDescription>
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  • The Photon operating system must implement address space layout randomization to protect its memory from unauthorized code execution.

    &lt;VulnDiscussion&gt;Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations t...
    Rule Medium Severity
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  • SRG-OS-000437-GPOS-00194

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  • The Photon operating system must remove all software components after updated versions have been installed.

    &lt;VulnDiscussion&gt;Previous versions of software components that are not removed from the information system after updates have been installed m...
    Rule Medium Severity
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  • SRG-OS-000470-GPOS-00214

    <GroupDescription></GroupDescription>
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  • The Photon operating system must generate audit records when successful/unsuccessful logon attempts occur.

    &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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Node 2

siemur/test-space

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