diff options
Diffstat (limited to 'config/suricata/suricata_alerts.widget.php')
| -rw-r--r-- | config/suricata/suricata_alerts.widget.php | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/config/suricata/suricata_alerts.widget.php b/config/suricata/suricata_alerts.widget.php new file mode 100644 index 00000000..21fad03d --- /dev/null +++ b/config/suricata/suricata_alerts.widget.php @@ -0,0 +1,229 @@ +<?php +/* + suricata_alerts.widget.php + Copyright (C) 2009 Jim Pingle + mod 24-07-2012 + + Copyright (C) 2014 Bill Meeks + mod 03-Mar-2014 adapted for use with Suricata by Bill Meeks + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INClUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +$nocsrf = true; + +require_once("guiconfig.inc"); +require_once("/usr/local/www/widgets/include/widget-suricata.inc"); + +global $config, $g; + +/* Retrieve Suricata configuration */ +if (!is_array($config['installedpackages']['suricata']['rule'])) + $config['installedpackages']['suricata']['rule'] = array(); +$a_instance = &$config['installedpackages']['suricata']['rule']; + +/* array sorting */ +function sksort(&$array, $subkey="id", $sort_ascending=false) { + /* an empty array causes sksort to fail - this test alleviates the error */ + if(empty($array)) + return false; + if (count($array)){ + $temp_array[key($array)] = array_shift($array); + }; + foreach ($array as $key => $val){ + $offset = 0; + $found = false; + foreach ($temp_array as $tmp_key => $tmp_val) { + if (!$found and strtolower($val[$subkey]) > strtolower($tmp_val[$subkey])) { + $temp_array = array_merge((array)array_slice($temp_array,0,$offset), array($key => $val), array_slice($temp_array,$offset)); + $found = true; + }; + $offset++; + }; + if (!$found) $temp_array = array_merge($temp_array, array($key => $val)); + }; + + if ($sort_ascending) { + $array = array_reverse($temp_array); + } else $array = $temp_array; + /* below is the complement for empty array test */ + return true; +}; + +/* check if suricata widget variable is set */ +$suri_nentries = $config['widgets']['widget_suricata_display_lines']; +if (!isset($suri_nentries) || $suri_nentries < 0) + $suri_nentries = 5; + +// Called by Ajax to update alerts table contents +if (isset($_GET['getNewAlerts'])) { + $response = ""; + $suri_alerts = suricata_widget_get_alerts(); + $counter = 0; + foreach ($suri_alerts as $a) { + $response .= $a['instanceid'] . " " . $a['dateonly'] . "||" . $a['timeonly'] . "||" . $a['src'] . "||"; + $response .= $a['dst'] . "||" . $a['priority'] . "||" . $a['category'] . "\n"; + $counter++; + if($counter >= $suri_nentries) + break; + } + echo $response; + return; +} + +if(isset($_POST['widget_suricata_display_lines'])) { + $config['widgets']['widget_suricata_display_lines'] = $_POST['widget_suricata_display_lines']; + write_config("Saved Suricata Alerts Widget Displayed Lines Parameter via Dashboard"); + header("Location: ../../index.php"); +} + +// Read "$suri_nentries" worth of alerts from the top of the alerts.log file +function suricata_widget_get_alerts() { + + global $config, $a_instance, $suri_nentries; + $suricata_alerts = array(); + + /* read log file(s) */ + $counter=0; + foreach ($a_instance as $instanceid => $instance) { + $suricata_uuid = $a_instance[$instanceid]['uuid']; + $if_real = get_real_interface($a_instance[$instanceid]['interface']); + + // make sure alert file exists, then grab the most recent {$suri_nentries} from it + // and write them to a temp file. + if (file_exists("/var/log/suricata/suricata_{$if_real}{$suricata_uuid}/alerts.log")) { + exec("tail -{$suri_nentries} -r /var/log/suricata/suricata_{$if_real}{$suricata_uuid}/alerts.log > /tmp/surialerts_{$suricata_uuid}"); + if (file_exists("/tmp/surialerts_{$suricata_uuid}")) { + + /* 0 1 2 3 4 5 6 7 8 9 10 11 12 */ + /* File format: timestamp,action,sig_generator,sig_id,sig_rev,msg,classification,priority,proto,src,srcport,dst,dstport */ + $fd = fopen("/tmp/surialerts_{$suricata_uuid}", "r"); + while (($fields = fgetcsv($fd, 1000, ',', '"')) !== FALSE) { + if(count($fields) < 13) + continue; + + // Create a DateTime object from the event timestamp that + // we can use to easily manipulate output formats. + $event_tm = date_create_from_format("m/d/Y-H:i:s.u", $fields[0]); + + // Check the 'CATEGORY' field for the text "(null)" and + // substitute "No classtype defined". + if ($fields[6] == "(null)") + $fields[6] = "No classtype assigned"; + + $suricata_alerts[$counter]['instanceid'] = strtoupper($a_instance[$instanceid]['interface']); + $suricata_alerts[$counter]['timestamp'] = strval(date_timestamp_get($event_tm)); + $suricata_alerts[$counter]['timeonly'] = date_format($event_tm, "H:i:s"); + $suricata_alerts[$counter]['dateonly'] = date_format($event_tm, "M d"); + // Add square brackets around any IPv6 address + if (is_ipaddrv6($fields[9])) + $suricata_alerts[$counter]['src'] = "[" . $fields[9] . "]"; + else + $suricata_alerts[$counter]['src'] = $fields[9]; + // Add the SRC PORT if not null + if (!empty($fields[10])) + $suricata_alerts[$counter]['src'] .= ":" . $fields[10]; + // Add square brackets around any IPv6 address + if (is_ipaddrv6($fields[11])) + $suricata_alerts[$counter]['dst'] = "[" . $fields[11] . "]"; + else + $suricata_alerts[$counter]['dst'] = $fields[11]; + // Add the SRC PORT if not null + if (!empty($fields[12])) + $suricata_alerts[$counter]['dst'] .= ":" . $fields[12]; + $suricata_alerts[$counter]['priority'] = $fields[7]; + $suricata_alerts[$counter]['category'] = $fields[6]; + $counter++; + }; + fclose($fd); + @unlink("/tmp/surialerts_{$suricata_uuid}"); + }; + }; + }; + + // Sort the alerts array + if (isset($config['syslog']['reverse'])) { + sksort($suricata_alerts, 'timestamp', false); + } else { + sksort($suricata_alerts, 'timestamp', true); + } + + return $suricata_alerts; +} + +/* display the result */ +?> + +<input type="hidden" id="suricata_alerts-config" name="suricata_alerts-config" value=""/> +<div id="suricata_alerts-settings" class="widgetconfigdiv" style="display:none;"> + <form action="/widgets/widgets/suricata_alerts.widget.php" method="post" name="iformd"> + Enter number of recent alerts to display (default is 5)<br/> + <input type="text" size="5" name="widget_suricata_display_lines" class="formfld unknown" id="widget_suricata_display_lines" value="<?= $config['widgets']['widget_suricata_display_lines'] ?>" /> + <input id="submitd" name="submitd" type="submit" class="formbtn" value="Save" /> + </form> +</div> + +<table width="100%" border="0" cellspacing="0" cellpadding="0" style="table-layout: fixed;"> + <colgroup> + <col style="width: 24%;" /> + <col style="width: 38%;" /> + <col style="width: 38%;" /> + </colgroup> + <thead> + <tr> + <th class="listhdrr"><?=gettext("IF/Date");?></th> + <th class="listhdrr"><?=gettext("Src/Dst Address");?></th> + <th class="listhdrr"><?=gettext("Classification");?></th> + </tr> + </thead> + <tbody id="suricata-alert-entries"> + <?php + $suricata_alerts = suricata_widget_get_alerts($suri_nentries); + $counter=0; + if (is_array($suricata_alerts)) { + foreach ($suricata_alerts as $alert) { + $evenRowClass = $counter % 2 ? " listMReven" : " listMRodd"; + echo(" <tr class='" . $evenRowClass . "'> + <td class='listMRr'>" . $alert['instanceid'] . " " . $alert['dateonly'] . "<br/>" . $alert['timeonly'] . "</td> + <td class='listMRr ellipsis' nowrap><div style='display:inline;' title='" . $alert['src'] . "'>" . $alert['src'] . "</div><br/><div style='display:inline;' title='" . $alert['dst'] . "'>" . $alert['dst'] . "</div></td> + <td class='listMRr'>Pri: " . $alert['priority'] . " " . $alert['category'] . "</td></tr>"); + $counter++; + if($counter >= $suri_nentries) + break; + } + } + ?> + </tbody> +</table> + +<script type="text/javascript"> +//<![CDATA[ + var suricataupdateDelay = 10000; // update every 10 seconds + var suri_nentries = <?php echo $suri_nentries; ?>; // default is 5 + +<!-- needed to display the widget settings menu --> + selectIntLink = "suricata_alerts-configure"; + textlink = document.getElementById(selectIntLink); + textlink.style.display = "inline"; +//]]> +</script> + |