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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000343-GPOS-00134

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure auditd to log space limit problems to syslog.

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

    <GroupDescription></GroupDescription>
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  • The Photon operating system RPM 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 Medium Severity
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  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
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  • The Photon operating system RPM 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 Medium Severity
    Show

  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
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  • The  Photon operating system YUM repository 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 Medium 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-000394-GPOS-00174

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to use FIPS 140-2 ciphers.

    &lt;VulnDiscussion&gt;Privileged access contains control and configuration information and is particularly sensitive, so additional protections are...
    Rule Low 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 (ASLR) to protect its memory from unauthorized code execution.

    &lt;VulnDiscussion&gt;ASLR makes it more difficult for an attacker to predict the location of attack code they have introduced into a process's add...
    Rule Medium Severity
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  • SRG-OS-000437-GPOS-00194

    <GroupDescription></GroupDescription>
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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-000458-GPOS-00203

    <GroupDescription></GroupDescription>
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  • The Photon operating system must generate audit records when the sudo command is used.

    &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-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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  • SRG-OS-000471-GPOS-00216

    <GroupDescription></GroupDescription>
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  • The Photon operating system must audit the "insmod" module.

    &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-000476-GPOS-00221

    <GroupDescription></GroupDescription>
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  • The Photon operating system auditd service must generate audit records for all account creations, modifications, disabling, and termination events.

    &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-000480-GPOS-00225

    <GroupDescription></GroupDescription>
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  • The Photon operating system must use the "pam_cracklib" module.

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

    <GroupDescription></GroupDescription>
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  • The Photon operating system must set the "FAIL_DELAY" parameter.

    &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-00226

    <GroupDescription></GroupDescription>
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  • The Photon operating system 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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  • The Photon operating system must ensure audit events are flushed to disk at proper intervals.

    &lt;VulnDiscussion&gt;Without setting a balance between performance and ensuring all audit events are written to disk, performance of the system ma...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must create a home directory for all new local interactive user accounts.

    &lt;VulnDiscussion&gt;If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files th...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must disable the debug-shell service.

    &lt;VulnDiscussion&gt;The debug-shell service is intended to diagnose systemd-related boot issues with various "systemctl" commands. Once enabled a...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to disallow Generic Security Service Application Program Interface (GSSAPI) authentication.

    &lt;VulnDiscussion&gt;GSSAPI authentication is used to provide additional authentication mechanisms to applications. Allowing GSSAPI authentication...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to disable environment processing.

    &lt;VulnDiscussion&gt;Enabling environment processing may enable users to bypass access restrictions in some configurations and must therefore be d...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to disable X11 forwarding.

    &lt;VulnDiscussion&gt;X11 is an older, insecure graphics forwarding protocol. It is not used by Photon and should be disabled as a general best pra...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to perform strict mode checking of home directory configuration files.

    &lt;VulnDiscussion&gt;If other users have access to modify user-specific Secure Shell (SSH) configuration files, they may be able to log on to the ...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to disallow Kerberos authentication.

    &lt;VulnDiscussion&gt;If Kerberos is enabled through Secure Shell (SSH), sshd provides a means of access to the system's Kerberos implementation. V...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to disallow authentication with an empty password.

    &lt;VulnDiscussion&gt;Blank passwords are one of the first things an attacker checks for when probing a system. Even is the user somehow has a blan...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Photon operating system must configure sshd to disallow compression of the encrypted session stream.

    &lt;VulnDiscussion&gt;If compression is allowed in a Secure Shell (SSH) connection prior to authentication, vulnerabilities in the compression soft...
    Rule Medium Severity
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