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III - Administrative Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 must use reverse path filtering on all IPv4 interfaces.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 must be configured to prevent unrestricted mail relaying.

    &lt;VulnDiscussion&gt;If unrestricted mail relaying is permitted, unauthorized senders could use this host as a mail relay for the purpose of sendi...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The RHEL 8 file integrity tool must be configured to verify extended attributes.

    &lt;VulnDiscussion&gt;Extended attributes in file systems are used to contain arbitrary data and file metadata with security implications. RHEL 8 ...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The RHEL 8 file integrity tool must be configured to verify Access Control Lists (ACLs).

    &lt;VulnDiscussion&gt;ACLs can provide permissions beyond those permitted through the file mode and must be verified by file integrity tools. RHEL...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The graphical display manager must not be installed on RHEL 8 unless approved.

    &lt;VulnDiscussion&gt;Internet services that are not required for system or application processes must not be active to decrease the attack surface...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 network interfaces must not be in promiscuous mode.

    &lt;VulnDiscussion&gt;Network interfaces in promiscuous mode allow for the capture of all network traffic visible to the system. If unauthorized in...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 remote X connections for interactive users must be disabled unless to fulfill documented and validated mission requirements.

    &lt;VulnDiscussion&gt;The security risk of using X11 forwarding is that the client's X11 display server may be exposed to attack when the SSH clien...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The RHEL 8 SSH daemon must prevent remote hosts from connecting to the proxy display.

    &lt;VulnDiscussion&gt;When X11 forwarding is enabled, there may be additional exposure to the server and client displays if the sshd proxy display ...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • If the Trivial File Transfer Protocol (TFTP) server is required, the RHEL 8 TFTP daemon must be configured to operate in secure mode.

    &lt;VulnDiscussion&gt;Restricting TFTP to a specific directory prevents remote users from copying, transferring, or overwriting system files.&lt;/V...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • A File Transfer Protocol (FTP) server package must not be installed unless mission essential on RHEL 8.

    &lt;VulnDiscussion&gt;The FTP service provides an unencrypted remote access that does not provide for the confidentiality and integrity of user pas...
    Rule High Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The gssproxy package must not be installed unless mission essential on RHEL 8.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The iprutils package must not be installed unless mission essential on RHEL 8.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The tuned package must not be installed unless mission essential on RHEL 8.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000120-GPOS-00061

    <GroupDescription></GroupDescription>
    Group
  • The krb5-server package must not be installed on RHEL 8.

    &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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 must restrict privilege elevation to authorized personnel.

    &lt;VulnDiscussion&gt;The sudo command allows a user to execute programs with elevated (administrator) privileges. It prompts the user for their pa...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 must use the invoking user's password for privilege escalation when using "sudo".

    &lt;VulnDiscussion&gt;The sudoers security policy requires that users authenticate themselves before they can use sudo. When sudoers requires authe...
    Rule Medium Severity
  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 must require re-authentication when using the "sudo" command.

    &lt;VulnDiscussion&gt;Without re-authentication, users may access resources or perform tasks for which they do not have authorization. When opera...
    Rule Medium Severity
  • SRG-OS-000023-GPOS-00006

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 must display a banner before granting local or remote access to the system via a graphical user logon.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the operating system ensures privacy and se...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 operating systems booted with United Extensible Firmware Interface (UEFI) must require a unique superusers name upon booting into single-user mode and maintenance.

    &lt;VulnDiscussion&gt;If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes ...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 operating systems booted with a BIOS must require a unique superusers name upon booting into single-user and maintenance modes.

    &lt;VulnDiscussion&gt;If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes ...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • RHEL 8 operating systems must require authentication upon booting into emergency mode.

    &lt;VulnDiscussion&gt;If the system does not require valid root authentication before it boots into emergency or rescue mode, anyone who invokes em...
    Rule Medium Severity
  • SRG-OS-000120-GPOS-00061

    <GroupDescription></GroupDescription>
    Group
  • 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
  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • 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
  • SRG-OS-000250-GPOS-00093

    <GroupDescription></GroupDescription>
    Group
  • 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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • 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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