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Guide to the Secure Configuration of Ubuntu 16.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Action for auditd to take when disk is full

    'The setting for disk_full_action in /etc/audit/auditd.conf, if multiple values are allowed write them separated by pipes as in "syslog|single|halt...
    Value
  • Auditd priority for flushing data to disk

    The setting for flush in /etc/audit/auditd.conf
    Value
  • Number of Record to Retain Before Flushing to Disk

    The setting for freq in /etc/audit/auditd.conf
    Value
  • Maximum audit log file size for auditd

    The setting for max_log_file in /etc/audit/auditd.conf
    Value
  • Record Events that Modify User/Group Information

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
  • System Audit Logs Must Have Mode 0750 or Less Permissive

    If <code>log_group</code> in <code>/etc/audit/auditd.conf</code> is set to a group other than the <code>root</code> group account, change the mode...
    Rule Medium Severity
  • Audit Configuration Files Must Be Owned By Group root

    All audit configuration files must be owned by group root.
    chown :root /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*
    Rule Medium Severity
  • Audit Configuration Files Must Be Owned By Root

    All audit configuration files must be owned by root user. To properly set the owner of <code>/etc/audit/</code>, run the command: <pre>$ sudo chow...
    Rule Medium Severity
  • System Audit Logs Must Be Owned By Root

    All audit logs must be owned by root user and group. By default, the path for audit log is <pre>/var/log/audit/</pre>. To properly set the owner o...
    Rule Medium Severity
  • Audit Configuration Files Permissions are 640 or More Restrictive

    All audit configuration files permissions must be 640 or more restrictive.
    chmod 0640 /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls

    At a minimum, the audit system should collect file permission changes for all users and root. Note that the "-F arch=b32" lines should be present e...
    Group
  • Record Events that Modify the System's Discretionary Access Controls - chmod

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - chown

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - fchmod

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - fchmodat

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - fchown

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - fchownat

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - fremovexattr

    At a minimum, the audit system should collect file permission changes for all users and root. <br><br> If the <code>auditd</code> daemon is configu...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - fsetxattr

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity
  • Record Events that Modify the System's Discretionary Access Controls - lchown

    At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...
    Rule Medium Severity

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