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Oracle Linux 8 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • All OL 8 local interactive user accounts must be assigned a home directory upon creation.

    <VulnDiscussion>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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • All OL 8 local initialization files must have mode "0740" or less permissive.

    &lt;VulnDiscussion&gt;Local initialization files are used to configure the user's shell environment upon logon. Malicious modification of these fil...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • All OL 8 files and directories must have a valid owner.

    &lt;VulnDiscussion&gt;Unowned files and directories may be unintentionally inherited if a user is assigned the same User Identifier "UID" as the UI...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • All OL 8 files and directories must have a valid group owner.

    &lt;VulnDiscussion&gt;Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as ...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 temporary user accounts must be provisioned with an expiration time of 72 hours or less.

    &lt;VulnDiscussion&gt;If temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain...
    Rule Medium Severity
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems below version 8.2 must automatically lock an account when three unsuccessful logon attempts occur.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems, versions 8.2 and above, must automatically lock an account when three unsuccessful logon attempts occur.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems below version 8.2 must automatically lock an account when three unsuccessful logon attempts occur during a 15-minute time period.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must enable a user session lock until that user reestablishes access using established identification and authentication procedures for graphical user sessions.

    &lt;VulnDiscussion&gt;To establish acceptance of the application usage policy, a click-through banner at system logon is required. The system must ...
    Rule Medium Severity
  • SRG-OS-000029-GPOS-00010

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems, versions 8.2 and above, must automatically lock an account when three unsuccessful logon attempts occur during a 15-minute time period.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems below version 8.2 must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts occur during a 15-minute time period.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems, versions 8.2 and above, must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts occur during a 15-minute time period.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems below version 8.2 must ensure account lockouts persist.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems, versions 8.2 and above, must ensure account lockouts persist.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems below version 8.2 must prevent system messages from being presented when three unsuccessful logon attempts occur.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems, versions 8.2 and above, must prevent system messages from being presented when three unsuccessful logon attempts occur.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems below version 8.2 must log user name information when unsuccessful logon attempts occur.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must not allow blank or null passwords in the system-auth file.

    &lt;VulnDiscussion&gt;If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with ...
    Rule High Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must not allow blank or null passwords in the password-auth file.

    &lt;VulnDiscussion&gt;If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with ...
    Rule High Severity
  • OL 8 systems, versions 8.2 and above, must log user name information when unsuccessful logon attempts occur.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems below version 8.2 must include root when automatically locking an account until the locked account is released by an administrator when three unsuccessful logon attempts occur during a 15-minute time period.

    &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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • OL 8 systems, versions 8.2 and above, must include root when automatically locking an account until the locked account is released by an administrator when three unsuccessful logon attempts occur during a 15-minute time period.

    &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
  • SRG-OS-000027-GPOS-00008

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must limit the number of concurrent sessions to 10 for all accounts and/or account types.

    &lt;VulnDiscussion&gt;Operating system management includes the ability to control the number of users and user sessions that use an operating syste...
    Rule Low Severity
  • SRG-OS-000021-GPOS-00005

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

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must display the date and time of the last successful account logon upon logon.

    &lt;VulnDiscussion&gt;Providing users with feedback on when account accesses last occurred facilitates user recognition and reporting of unauthoriz...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 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
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group

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