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Red Hat Enterprise Linux 8 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000120-GPOS-00061

    <GroupDescription></GroupDescription>
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  • The RHEL 8 pam_unix.so module must be configured in the system-auth file to use a FIPS 140-2 approved cryptographic hashing algorithm for system authentication.

    &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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  • RHEL 8 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-000250-GPOS-00093

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  • The RHEL 8 SSH daemon must be configured to use system-wide crypto policies.

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

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  • RHEL 8 must have the packages required to use the hardware random number generator entropy gatherer service.

    &lt;VulnDiscussion&gt;The most important characteristic of a random number generator is its randomness, namely its ability to deliver random number...
    Rule Low Severity
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  • SRG-OS-000480-GPOS-00227

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  • The RHEL 8 SSH daemon must not allow GSSAPI authentication, except to fulfill documented and validated mission requirements.

    &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

    <GroupDescription></GroupDescription>
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  • RHEL 8 must use a separate file system for /var/tmp.

    &lt;VulnDiscussion&gt;The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • RHEL 8 must prevent files with the setuid and setgid bit set from being executed on the /boot/efi directory.

    &lt;VulnDiscussion&gt;The "nosuid" mount option causes the system not to execute "setuid" and "setgid" files with owner privileges. This option mus...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • All RHEL 8 local interactive user home directory files must have mode 0750 or less permissive.

    &lt;VulnDiscussion&gt;Excessive permissions on local interactive user home directories may allow unauthorized access to user files by other users.&...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • RHEL 8 must be configured so that all files and directories contained in local interactive user home directories are group-owned by a group of which the home directory owner is a member.

    &lt;VulnDiscussion&gt;If a local interactive user's files are group-owned by a group of which the user is not a member, unintended users may be abl...
    Rule Medium Severity
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  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
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  • RHEL 8 must configure the use of the pam_faillock.so module in the /etc/pam.d/system-auth file.

    &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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