diff options
| -rw-r--r-- | config/widget-snort/snort_alerts.widget.php | 128 |
1 files changed, 75 insertions, 53 deletions
diff --git a/config/widget-snort/snort_alerts.widget.php b/config/widget-snort/snort_alerts.widget.php index c579a35e..c53f6593 100644 --- a/config/widget-snort/snort_alerts.widget.php +++ b/config/widget-snort/snort_alerts.widget.php @@ -2,7 +2,7 @@ /* snort_alerts.widget.php Copyright (C) 2009 Jim Pingle - mod 19-07-2012 + mod 24-07-2012 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: @@ -26,68 +26,86 @@ POSSIBILITY OF SUCH DAMAGE. */ global $config, $g; -$snort_alerts_title = "Snort Alerts"; -$snort_alerts_title_link = "snort/snort_alerts.php"; + +/* array sorting */ +function sksort(&$array, $subkey="id", $sort_ascending=false) { + if (count($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 = $temp_array; +}; + +/* check if firewall widget variable is set */ +if (!isset($nentries)) $nentries = 5; /* retrieve snort variables */ require_once("/usr/local/pkg/snort/snort.inc"); +$snortalertlogt = $config['installedpackages']['snortglobal']['snortalertlogtype']; if (!is_array($config['installedpackages']['snortglobal']['rule'])) $config['installedpackages']['snortglobal']['rule'] = array(); $a_instance = &$config['installedpackages']['snortglobal']['rule']; /* read log file(s) */ -$snort_alerts = array(); -$tmpblocked = array_flip(snort_get_blocked_ips()); +$counter=0; foreach ($a_instance as $instanceid => $instance) { - if ($instance['enable'] != 'on') - continue; + $snort_uuid = $a_instance[$instanceid]['uuid']; + $if_real = snort_get_real_interface($a_instance[$instanceid]['interface']); /* make sure alert file exists */ if (file_exists("/var/log/snort/snort_{$if_real}{$snort_uuid}/alert")) { - $snort_uuid = $instance['uuid']; - $if_real = snort_get_real_interface($instance['interface']); - $tmpfile = "{$g['tmp_path']}/.widget_alert_{$snort_uuid}"; - if (isset($config['syslog']['reverse'])) - exec("tail -10 /var/log/snort/snort_{$if_real}{$snort_uuid}/alert | sort -r > {$tmpfile}"); - else - exec("tail -10 /var/log/snort/snort_{$if_real}{$snort_uuid}/alert > {$tmpfile}"); - if (file_exists($tmpfile)) { + exec("tail -n{$nentries} /var/log/snort/snort_{$if_real}{$snort_uuid}/alert > /tmp/alert_{$snort_uuid}"); + if (file_exists("/tmp/alert_{$snort_uuid}")) { + $tmpblocked = array_flip(snort_get_blocked_ips()); + /* 0 1 2 3 4 5 6 7 8 9 10 11 12 */ /* File format timestamp,sig_generator,sig_id,sig_rev,msg,proto,src,srcport,dst,dstport,id,classification,priority */ - $fd = fopen($tmpfile, "r"); - while (($fileline = @fgets($fd))) { - if (empty($fileline)) + $fd = fopen("/tmp/alert_{$snort_uuid}", "r"); + while (($fields = fgetcsv($fd, 1000, ',', '"')) !== FALSE) { + if(count($fields) < 11) continue; - $fields = explode(",", $fileline); - - $snort_alert = array(); - $snort_alert[]['instanceid'] = snort_get_friendly_interface($instance['interface']); - $snort_alert[]['timestamp'] = $fields[0]; - $snort_alert[]['timeonly'] = substr($fields[0], 6, -8); - $snort_alert[]['dateonly'] = substr($fields[0], 0, -17); - $snort_alert[]['src'] = $fields[6]; - $snort_alert[]['srcport'] = $fields[7]; - $snort_alert[]['dst'] = $fields[8]; - $snort_alert[]['dstport'] = $fields[9]; - $snort_alert[]['priority'] = $fields[12]; - $snort_alert[]['category'] = $fields[11]; - $snort_alerts[] = $snort_alert; - } - fclose($fd); - @unlink($tmpfile); - } - } -} -if ($_GET['evalScripts']) { - /* AJAX specific handlers */ - $new_rules = ""; - foreach($snort_alerts as $log_row) - $new_rules .= "{$log_row['time']}||{$log_row['priority']}||{$log_row['category']}||{$log_row['src']}||{$log_row['dst']}||{$log_row['timestamp']}||{$log_row['timeonly']}||{$log_row['dateonly']}\n"; + $snort_alerts[$counter]['instanceid'] = $a_instance[$instanceid]['interface']; + $snort_alerts[$counter]['timestamp'] = $fields[0]; + $snort_alerts[$counter]['timeonly'] = substr($fields[0], 6, -8); + $snort_alerts[$counter]['dateonly'] = substr($fields[0], 0, -17); + $snort_alerts[$counter]['src'] = $fields[6]; + $snort_alerts[$counter]['srcport'] = $fields[7]; + $snort_alerts[$counter]['dst'] = $fields[8]; + $snort_alerts[$counter]['dstport'] = $fields[9]; + $snort_alerts[$counter]['priority'] = $fields[12]; + $snort_alerts[$counter]['category'] = $fields[11]; + $counter++; + }; + fclose($fd); + @unlink("/tmp/alert_{$snort_uuid}"); + }; + }; +}; - echo $new_rules; +/* sort the array */ +if (isset($config['syslog']['reverse'])) { + sksort($snort_alerts, 'timestamp', false); } else { + sksort($snort_alerts, 'timestamp', true); +}; + /* display the result */ ?> <table width="100%" border="0" cellspacing="0" cellpadding="0"> @@ -98,14 +116,18 @@ if ($_GET['evalScripts']) { <td width="40%" class="widgetsubheader">Details</td> </tr> <?php -foreach ($snort_alerts as $counter => $alert) { - echo(" <tr class='snort-alert-entry'" . $activerow . "> - <td width='30%' class='listr'>{$alert['instanceid']}<br/>{$alert['timeonly']} {$alert['dateonly']}</td> - <td width='40%' class='listr'>{$alert['src']}:{$alert['srcport']}<br/>{$alert['dst']}:{$alert['dstport']}</td> - <td width='40%' class='listr'>Pri : {$alert['priority']}<br/>Cat : {$alert['category']}</td> - </tr>"); -} +$counter=0; +if (is_array($snort_alerts)) { + foreach ($snort_alerts as $alert) { + echo(" <tr class='snort-alert-entry'" . $activerow . "> + <td width='30%' class='listr'>" . $alert['instanceid'] . "<br>" . $alert['timeonly'] . " " . $alert['dateonly'] . "</td> + <td width='40%' class='listr'>" . $alert['src'] . ":" . $alert['srcport'] . "<br>" . $alert['dst'] . ":" . $alert['dstport'] . "</td> + <td width='40%' class='listr'>Pri : " . $alert['priority'] . "<br>Cat : " . $alert['category'] . "</td> + </tr>"); + $counter++; + if($counter >= $nentries) break; + } +}; ?> </tbody> -</table> -<?php } ?> +</table>
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