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I - Mission Critical Public

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000073-GPOS-00041

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must be configured so that user and group account administration utilities are configured to store only encrypted representations of passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule Medium Severity
  • SRG-OS-000073-GPOS-00041

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must be configured to use the shadow file to store only encrypted representations of passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule Medium Severity
  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must not be configured to bypass password requirements for privilege escalation.

    &lt;VulnDiscussion&gt;Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operatin...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must not have accounts configured with blank or null passwords.

    &lt;VulnDiscussion&gt;If an account has an empty password, anyone could log in and run commands with the privileges of that account. Accounts with ...
    Rule Medium Severity
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must use the common access card (CAC) smart card driver.

    &lt;VulnDiscussion&gt;Smart card login provides two-factor authentication stronger than that provided by a username and password combination. Smart...
    Rule Medium Severity
  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must enable certificate based smart card authentication.

    &lt;VulnDiscussion&gt;Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor a...
    Rule Medium Severity
  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must implement certificate status checking for multifactor authentication.

    &lt;VulnDiscussion&gt;Using an authentication device, such as a DOD common access card (CAC) or token that is separate from the information system,...
    Rule Medium Severity
  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must have the pcsc-lite package installed.

    &lt;VulnDiscussion&gt;The pcsc-lite package must be installed if it is to be available for multifactor authentication using smart cards.&lt;/VulnDi...
    Rule Medium Severity
  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
    Group
  • The pcscd service on RHEL 9 must be active.

    &lt;VulnDiscussion&gt;The information system ensures that even if the information system is compromised, that compromise will not affect credential...
    Rule Medium Severity
  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must have the opensc package installed.

    &lt;VulnDiscussion&gt;The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. The DOD has mandated the...
    Rule Medium Severity
  • SRG-OS-000067-GPOS-00035

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9, for PKI-based authentication, must enforce authorized access to the corresponding private key.

    &lt;VulnDiscussion&gt;If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the ne...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must require authentication to access emergency mode.

    &lt;VulnDiscussion&gt;To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DOD-ap...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must require authentication to access single-user mode.

    &lt;VulnDiscussion&gt;To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DOD-ap...
    Rule Medium Severity
  • SRG-OS-000120-GPOS-00061

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must prevent system daemons from using Kerberos for authentication.

    &lt;VulnDiscussion&gt;Unapproved mechanisms used for authentication to the cryptographic module are not verified; therefore, cannot be relied upon ...
    Rule Medium Severity
  • SRG-OS-000066-GPOS-00034

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.

    &lt;VulnDiscussion&gt;Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate n...
    Rule Medium Severity
  • SRG-OS-000068-GPOS-00036

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must map the authenticated identity to the user or group account for PKI-based authentication.

    &lt;VulnDiscussion&gt;Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the indivi...
    Rule Medium Severity
  • SRG-OS-000383-GPOS-00166

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must prohibit the use of cached authenticators after one day.

    &lt;VulnDiscussion&gt;If cached authentication information is out-of-date, the validity of the authentication information may be questionable.&lt;/...
    Rule Medium Severity
  • SRG-OS-000363-GPOS-00150

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must have the AIDE package installed.

    &lt;VulnDiscussion&gt;Without verification of the security functions, security functions may not operate correctly, and the failure may go unnotice...
    Rule Medium Severity
  • SRG-OS-000363-GPOS-00150

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must routinely check the baseline configuration for unauthorized changes and notify the system administrator when anomalies in the operation of any security functions are discovered.

    &lt;VulnDiscussion&gt;Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must use a file integrity tool that is configured to use FIPS 140-3-approved cryptographic hashes for validating file contents and directories.

    &lt;VulnDiscussion&gt;RHEL 9 installation media ships with an optional file integrity tool called Advanced Intrusion Detection Environment (AIDE). ...
    Rule Medium Severity
  • SRG-OS-000256-GPOS-00097

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 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 Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must be configured so that the file integrity tool verifies Access Control Lists (ACLs).

    &lt;VulnDiscussion&gt;RHEL 9 installation media ships with an optional file integrity tool called Advanced Intrusion Detection Environment (AIDE). ...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must be configured so that the file integrity tool verifies extended attributes.

    &lt;VulnDiscussion&gt;RHEL 9 installation media ships with an optional file integrity tool called Advanced Intrusion Detection Environment (AIDE). ...
    Rule Low Severity
  • SRG-OS-000479-GPOS-00224

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must have the rsyslog package installed.

    &lt;VulnDiscussion&gt;rsyslogd is a system utility providing support for message logging. Support for both internet and Unix domain sockets enables...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must have the packages required for encrypting offloaded audit logs installed.

    &lt;VulnDiscussion&gt;The rsyslog-gnutls package provides Transport Layer Security (TLS) support for the rsyslog daemon, which enables secure remot...
    Rule Medium Severity

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