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I - Mission Critical Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000075-GPOS-00043

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must be configured so that passwords for new users are restricted to a 24-hour minimum 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
  • The Photon operating system must be configured so that passwords for new users are restricted to a 90-day maximum lifetime.

    &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
  • SRG-OS-000077-GPOS-00045

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must prohibit password reuse for a minimum of five generations.

    &lt;VulnDiscussion&gt;Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...
    Rule Medium Severity
  • SRG-OS-000078-GPOS-00046

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must enforce a minimum eight-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-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must require authentication upon booting into single-user and maintenance modes.

    &lt;VulnDiscussion&gt;If the system does not require authentication before it boots into single-user mode, anyone with console access to the system...
    Rule High Severity
  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must disable the loading of unnecessary kernel modules.

    &lt;VulnDiscussion&gt;To support the requirements and principles of least functionality, the operating system must provide only essential capabilit...
    Rule Medium Severity
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • 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
  • SRG-OS-000118-GPOS-00060

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must disable new accounts immediately upon password expiration.

    &lt;VulnDiscussion&gt;Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potenti...
    Rule Medium Severity
  • SRG-OS-000142-GPOS-00071

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must use Transmission Control Protocol (TCP) syncookies.

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

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure sshd to disconnect idle Secure Shell (SSH) sessions.

    &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
  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure sshd to disconnect idle Secure Shell (SSH) sessions.

    &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
  • SRG-OS-000206-GPOS-00084

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system "/var/log" directory must be owned by root.

    &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
  • SRG-OS-000206-GPOS-00084

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system messages file must have the correct ownership and file permissions.

    &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
  • SRG-OS-000239-GPOS-00089

    <GroupDescription></GroupDescription>
    Group
  • 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
  • SRG-OS-000239-GPOS-00089

    <GroupDescription></GroupDescription>
    Group
  • 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
  • SRG-OS-000240-GPOS-00090

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

    &lt;VulnDiscussion&gt;When operating system accounts are disabled, user accessibility is affected. Accounts are used for identifying individual use...
    Rule Medium Severity
  • SRG-OS-000241-GPOS-00091

    <GroupDescription></GroupDescription>
    Group
  • 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 used for identifying individual user...
    Rule Medium Severity
  • SRG-OS-000254-GPOS-00095

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must initiate auditing as part of the boot process.

    &lt;VulnDiscussion&gt;Each process on the system carries an "auditable" flag, which indicates whether its activities can be audited. Although audit...
    Rule Medium Severity
  • SRG-OS-000256-GPOS-00097

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system audit files and directories must have correct permissions.

    &lt;VulnDiscussion&gt;Protecting audit information includes identifying and protecting the tools used to view and manipulate log data. Therefore, p...
    Rule Medium Severity
  • SRG-OS-000257-GPOS-00098

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must protect audit tools from unauthorized modification and deletion.

    &lt;VulnDiscussion&gt;Protecting audit information includes identifying and protecting the tools used to view and manipulate log data. Therefore, p...
    Rule Medium Severity
  • SRG-OS-000266-GPOS-00101

    <GroupDescription></GroupDescription>
    Group
  • 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, ...
    Rule Medium Severity
  • SRG-OS-000278-GPOS-00108

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system package files must not be modified.

    &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 Medium Severity
  • SRG-OS-000327-GPOS-00127

    <GroupDescription></GroupDescription>
    Group
  • 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
  • SRG-OS-000341-GPOS-00132

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure auditd to keep five rotated log files.

    &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 Medium Severity
  • SRG-OS-000341-GPOS-00132

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure auditd to keep logging in the event max log file size is reached.

    &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 Medium Severity

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