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Guide to the Secure Configuration of SUSE Linux Enterprise 12

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Configure auditd Disk Full Action when Disk Space Is Full

    The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Edit the file <code>/etc/audit/auditd.conf</code>. A...
    Rule Medium Severity
  • Configure auditd mail_acct Action on Low Disk Space

    The <code>auditd</code> service can be configured to send email to a designated account in certain situations. Add or correct the following line in <code>/etc/audit/auditd.conf</code> to ensure tha...
    Rule Medium Severity
  • Configure auditd admin_space_left Action on Low Disk Space

    The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Edit the file <code>/etc/audit/auditd.conf</code>. A...
    Rule Medium Severity
  • Configure auditd Max Log File Size

    Determine the amount of audit data (in megabytes) which should be retained in each log file. Edit the file <code>/etc/audit/auditd.conf</code>. Add or modify the following line, substituting the co...
    Rule Medium Severity
  • Configure auditd max_log_file_action Upon Reaching Maximum Log Size

    The default action to take when the logs reach their maximum size is to rotate the log files, discarding the oldest one. To configure the action taken by <code>auditd</code>, add or correct the lin...
    Rule Medium Severity
  • Configure auditd max_log_file_action Upon Reaching Maximum Log Size

    The default action to take when the logs reach their maximum size is to rotate the log files, discarding the oldest one. To configure the action taken by <code>auditd</code>, add or correct the lin...
    Rule Medium Severity
  • Configure auditd space_left on Low Disk Space

    The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Edit the file <code>/etc/audit/auditd.conf</code>. A...
    Rule Medium Severity
  • Configure auditd space_left Action on Low Disk Space

    The <code>auditd</code> service can be configured to take an action when disk space <i>starts</i> to run low. Edit the file <code>/etc/audit/auditd.conf</code>. Modify the following line, substitut...
    Rule Medium Severity
  • Set number of records to cause an explicit flush to audit logs

    To configure Audit daemon to issue an explicit flush to disk command after writing <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_auditd_freq" use="legacy"></xccdf-1.2:sub> records, s...
    Rule Medium Severity
  • Include Local Events in Audit Logs

    To configure Audit daemon to include local events in Audit logs, set local_events to yes in /etc/audit/auditd.conf. This is the default setting.
    Rule Medium Severity
  • Resolve information before writing to audit logs

    To configure Audit daemon to resolve all uid, gid, syscall, architecture, and socket address information before writing the events to disk, set <code>log_format</code> to <code>ENRICHED</code> in <...
    Rule Low Severity
  • Appropriate Action Must be Setup When the Internal Audit Event Queue is Full

    The audit system should have an action setup in the event the internal event queue becomes full. To setup an overflow action edit <code>/etc/audit/auditd.conf</code>. Set <code>overflow_action</cod...
    Rule Medium Severity
  • Write Audit Logs to the Disk

    To configure Audit daemon to write Audit logs to the disk, set write_logs to yes in /etc/audit/auditd.conf. This is the default setting.
    Rule Medium Severity
  • Enable auditd Service

    The <code>auditd</code> service is an essential userspace component of the Linux Auditing System, as it is responsible for writing audit records to disk. The <code>auditd</code> service can be ena...
    Rule Medium Severity
  • Configure auditd Rules for Comprehensive Auditing

    The <code>auditd</code> program can perform comprehensive monitoring of system activity. This section describes recommended configuration settings for comprehensive auditing, but a full description...
    Group
  • Record Events that Modify the System's Mandatory Access Controls

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default), add the following line to a file with suffix <cod...
    Rule Medium Severity
  • Ensure auditd Collects Information on Exporting to Media (successful)

    At a minimum, the audit system should collect media exportation events for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read aud...
    Rule Medium Severity
  • Record Events When Privileged Executables Are Run

    Verify the system generates an audit record when privileged functions are executed. If audit is using the "auditctl" tool to load the rules, run the following command: <pre>$ sudo grep execve /et...
    Rule Medium Severity
  • Ensure auditd Collects System Administrator Actions

    At a minimum, the audit system should collect administrator actions for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit ...
    Rule Medium Severity
  • 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), add the following lines to a file with suffix <co...
    Rule Medium Severity

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