diff options
Diffstat (limited to 'config/snort-dev2/snort_rules.php')
| -rw-r--r-- | config/snort-dev2/snort_rules.php | 458 |
1 files changed, 458 insertions, 0 deletions
diff --git a/config/snort-dev2/snort_rules.php b/config/snort-dev2/snort_rules.php new file mode 100644 index 00000000..871eb39e --- /dev/null +++ b/config/snort-dev2/snort_rules.php @@ -0,0 +1,458 @@ +<?php +/* + snort_rules.php + Copyright (C) 2004, 2005 Scott Ullrich + Copyright (C) 2008, 2009 Robert Zelaya + Copyright (C) 2011 Ermal Luci + All rights reserved. + + 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. + */ + + +require_once("guiconfig.inc"); +require_once("/usr/local/pkg/snort/snort_gui.inc"); +require_once("/usr/local/pkg/snort/snort.inc"); + +global $g; + +if (!is_array($config['installedpackages']['snortglobal']['rule'])) + $config['installedpackages']['snortglobal']['rule'] = array(); +$a_nat = &$config['installedpackages']['snortglobal']['rule']; + +$id = $_GET['id']; +if (isset($_POST['id'])) + $id = $_POST['id']; +if (is_null($id)) { + header("Location: /snort/snort_interfaces.php"); + exit; +} + +if (isset($id) && $a_nat[$id]) { + $pconfig['enable'] = $a_nat[$id]['enable']; + $pconfig['interface'] = $a_nat[$id]['interface']; + $pconfig['rulesets'] = $a_nat[$id]['rulesets']; +} + +/* convert fake interfaces to real */ +$if_real = snort_get_real_interface($pconfig['interface']); +$iface_uuid = $a_nat[$id]['uuid']; + +/* Check if the rules dir is empy if so warn the user */ +/* TODO give the user the option to delete the installed rules rules */ +if (!is_dir("/usr/local/etc/snort/snort_{$iface_uuid}_{$if_real}/rules")) + exec("/bin/mkdir -p /usr/local/etc/snort/snort_{$iface_uuid}_{$if_real}/rules"); + +$isrulesfolderempty = exec("ls -A /usr/local/etc/snort/snort_{$iface_uuid}_{$if_real}/rules/*.rules"); +if ($isrulesfolderempty == "") { + $isrulesfolderempty = exec("ls -A /usr/local/etc/snort/rules/*.rules"); + if ($isrulesfolderempty == "") { + include_once("head.inc"); + include_once("fbegin.inc"); + + echo "<body link=\"#000000\" vlink=\"#000000\" alink=\"#000000\">"; + + if($pfsense_stable == 'yes'){echo '<p class="pgtitle">' . $pgtitle . '</p>';} + + echo "<table width=\"99%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n + <tr>\n + <td>\n"; + + $tab_array = array(); + $tabid = 0; + $tab_array[$tabid] = array(gettext("Snort Interfaces"), false, "/snort/snort_interfaces.php"); + $tabid++; + $tab_array[$tabid] = array(gettext("If Settings"), false, "/snort/snort_interfaces_edit.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Categories"), false, "/snort/snort_rulesets.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Rules"), true, "/snort/snort_rules.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Servers"), false, "/snort/snort_define_servers.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Preprocessors"), false, "/snort/snort_preprocessors.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Barnyard2"), false, "/snort/snort_barnyard.php?id={$id}"); + display_top_tabs($tab_array); + echo "</td>\n + </tr>\n + <tr>\n + <td>\n + <div id=\"mainarea\">\n + <table id=\"maintable\" class=\"tabcont\" width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n + <tr>\n + <td>\n + # The rules directory is empty.\n + </td>\n + </tr>\n + </table>\n + </div>\n + </td>\n + </tr>\n + </table>\n + \n + </form>\n + \n + <p>\n\n"; + + echo "Please click on the Update Rules tab to install your selected rule sets."; + include("fend.inc"); + + echo "</body>"; + echo "</html>"; + + exit(0); + } else { + /* Make sure that we have the rules */ + mwexec("/bin/cp /usr/local/etc/snort/rules/*.rules /usr/local/etc/snort/snort_{$iface_uuid}_{$if_real}/rules", true); + } +} + +function get_middle($source, $beginning, $ending, $init_pos) { + $beginning_pos = strpos($source, $beginning, $init_pos); + $middle_pos = $beginning_pos + strlen($beginning); + $ending_pos = strpos($source, $ending, $beginning_pos); + $middle = substr($source, $middle_pos, $ending_pos - $middle_pos); + return $middle; +} + +function write_rule_file($content_changed, $received_file) +{ + @file_put_contents($received_file, implode("\n", $content_changed)); +} + +function load_rule_file($incoming_file) +{ + //read file into string, and get filesize + $contents = @file_get_contents($incoming_file); + + //split the contents of the string file into an array using the delimiter + return explode("\n", $contents); +} + +$ruledir = "/usr/local/etc/snort/snort_{$iface_uuid}_{$if_real}/rules/"; +//$ruledir = "/usr/local/etc/snort/rules/"; +$dh = opendir($ruledir); +while (false !== ($filename = readdir($dh))) +{ + //only populate this array if its a rule file + $isrulefile = strstr($filename, ".rules"); + if ($isrulefile !== false) + $files[] = basename($filename); +} +sort($files); + +if ($_GET['openruleset']) + $rulefile = $_GET['openruleset']; +else + $rulefile = $ruledir.$files[0]; + +//Load the rule file +$splitcontents = load_rule_file($rulefile); + +if ($_GET['act'] == "toggle" && $_GET['ids']) { + + $lineid= $_GET['ids']; + + //copy rule contents from array into string + $tempstring = $splitcontents[$lineid]; + + //explode rule contents into an array, (delimiter is space) + $rule_content = explode(' ', $tempstring); + + $findme = "# alert"; //find string for disabled alerts + $disabled = strstr($tempstring, $findme); + + //if find alert is false, then rule is disabled + if ($disabled !== false) { + //rule has been enabled + $tempstring = substr($tempstring, 2); + } else + $tempstring = "# ". $tempstring; + + //copy string into array for writing + $splitcontents[$lineid] = $tempstring; + + //write the new .rules file + write_rule_file($splitcontents, $rulefile); + + //write disable/enable sid to config.xml + $sid = get_middle($tempstring, 'sid:', ';', 0); + if (is_numeric($sid)) { + // rule_sid_on registers + if (!empty($a_nat[$id]['rule_sid_on'])) + $a_nat[$id]['rule_sid_on'] = str_replace("||enablesid $sid", "", $a_nat[$id]['rule_sid_on']); + if (!empty($a_nat[$id]['rule_sid_on'])) + $a_nat[$id]['rule_sid_off'] = str_replace("||disablesid $sid", "", $a_nat[$id]['rule_sid_off']); + if ($disabled === false) + $a_nat[$id]['rule_sid_off'] = "||disablesid $sid_off" . $a_nat[$id]['rule_sid_off']; + else + $a_nat[$id]['rule_sid_on'] = "||enablesid $sid_on" . $a_nat[$id]['rule_sid_on']; + } + + write_config(); + + header("Location: /snort/snort_rules.php?id={$id}&openruleset={$rulefile}"); + exit; +} + +$currentruleset = basename($rulefile); + +$ifname = strtoupper($pconfig['interface']); + +require_once("guiconfig.inc"); +include_once("head.inc"); + +$pgtitle = "Snort: $id $iface_uuid $if_real Category: $currentruleset"; +?> + +<body link="#0000CC" vlink="#0000CC" alink="#0000CC"> +<?php +include("fbegin.inc"); +if ($pfsense_stable == 'yes'){echo '<p class="pgtitle">' . $pgtitle . '</p>';} + +echo "{$snort_general_css}\n"; +?> +<form action="snort_rules.php" method="post" name="iform" id="iform"> + +<script language="javascript" type="text/javascript"> +function go() +{ + var box = document.iform.selectbox; + destination = box.options[box.selectedIndex].value; + if (destination) + location.href = destination; +} +function popup(url) +{ + params = 'width='+screen.width; + params += ', height='+screen.height; + params += ', top=0, left=0' + params += ', fullscreen=yes'; + + newwin=window.open(url,'windowname4', params); + if (window.focus) {newwin.focus()} + return false; +} +</script> + +<table style="table-layout:fixed;" width="99%" border="0" cellpadding="0" cellspacing="0"> +<tr><td> +<?php + $tab_array = array(); + $tabid = 0; + $tab_array[$tabid] = array(gettext("Snort Interfaces"), false, "/snort/snort_interfaces.php"); + $tabid++; + $tab_array[$tabid] = array(gettext("If Settings"), false, "/snort/snort_interfaces_edit.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Categories"), false, "/snort/snort_rulesets.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Rules"), true, "/snort/snort_rules.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Servers"), false, "/snort/snort_define_servers.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Preprocessors"), false, "/snort/snort_preprocessors.php?id={$id}"); + $tabid++; + $tab_array[$tabid] = array(gettext("Barnyard2"), false, "/snort/snort_barnyard.php?id={$id}"); + display_top_tabs($tab_array); +?> +</td></tr> +<tr> + <td> + <div id="mainarea2"> + <table id="maintable" class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0"> + <tr> + <td class="listt" colspan="8"> + <br>Category: + <select id="selectbox" name="selectbox" class="formfld" onChange="go()"> + <?php + foreach ($files as $value) { + echo "<option value='?id={$id}&openruleset={$ruledir}{$value}' "; + if ($value === $currentruleset) + echo "selected"; + echo ">{$value}</option>\n"; + } + ?> + </select> + </td> + </tr> + <tr id="frheader"> + <td width="3%" class="list"> </td> + <td width="5%" class="listhdr">SID</td> + <td width="6%" class="listhdrr">Proto</td> + <td width="15%" class="listhdrr">Source</td> + <td width="10%" class="listhdrr">Port</td> + <td width="15%" class="listhdrr">Destination</td> + <td width="10%" class="listhdrr">Port</td> + <td width="32%" class="listhdrr">Message</td> + </tr> + <?php + foreach ( $splitcontents as $counter => $value ) + { + $disabled = "False"; + $comments = "False"; + $findme = "# alert"; //find string for disabled alerts + $disabled_pos = strstr($value, $findme); + + $counter2 = 1; + $sid = get_middle($value, 'sid:', ';', 0); + //check to see if the sid is numberical + if (!is_numeric($sid)) + continue; + + //if find alert is false, then rule is disabled + if ($disabled_pos !== false){ + $counter2 = $counter2+1; + $textss = "<span class=\"gray\">"; + $textse = "</span>"; + $iconb = "icon_block_d.gif"; + + $ischecked = ""; + } else { + $textss = $textse = ""; + $iconb = "icon_block.gif"; + + $ischecked = "checked"; + } + + $rule_content = explode(' ', $value); + + $protocol = $rule_content[$counter2];//protocol location + $counter2++; + $source = substr($rule_content[$counter2], 0, 20) . "...";//source location + $counter2++; + $source_port = $rule_content[$counter2];//source port location + $counter2 = $counter2+2; + $destination = substr($rule_content[$counter2], 0, 20) . "...";//destination location + $counter2++; + $destination_port = $rule_content[$counter2];//destination port location + + if (strstr($value, 'msg: "')) + $message = get_middle($value, 'msg: "', '";', 0); + else if (strstr($value, 'msg:"')) + $message = get_middle($value, 'msg:"', '";', 0); + + echo "<tr><td class=\"listt\"> $textss\n"; + ?> + <a href="?id=<?=$id;?>&openruleset=<?=$rulefile;?>&act=toggle&ids=<?=$counter;?>"><img + src="../themes/<?= $g['theme']; ?>/images/icons/<?=$iconb;?>" + width="10" height="10" border="0" + title="click to toggle enabled/disabled status"></a> + <!-- <input name="enable" type="checkbox" value="yes" <?= $ischecked; ?> onClick="enable_change(false)"> --> + <!-- TODO: add checkbox and save so that that disabling is nicer --> + <?php + echo "$textse + </td> + <td width='5%' class=\"listlr\"> + $textss + $sid + $textse + </td> + <td width='6%' class=\"listlr\"> + $textss + $protocol"; + echo "$textse + </td> + <td width='20%' class=\"listlr\"> + $textss + $source + $textse + </td> + <td width='5%' class=\"listlr\"> + $textss + $source_port + $textse + </td> + <td width='20%' class=\"listlr\"> + $textss + $destination + $textse + </td> + <td width='5%' class=\"listlr\"> + $textss + $destination_port + $textse + </td> + <td width='30%' class=\"listbg\"><font color=\"white\"> + $textss + $message + $textse + </td>"; + ?> + <td valign="middle" nowrap class="list"> + <table border="0" cellspacing="0" cellpadding="1"> + <tr> + <td><a href="javascript: void(0)" + onclick="popup('snort_rules_edit.php?id=<?=$id;?>&openruleset=<?=$rulefile;?>&ids=<?=$counter;?>')"><img + src="../themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" + title="edit rule" width="17" height="17" border="0"></a></td> + <!-- Codes by Quackit.com --> + </tr> + </table> + </td> + <?php + } + ?> + + </table> + </td> + </tr> + <tr> + <td class="listlr"> + <?php echo " <strong><span class='red'>There are {$counter} rules in this category. <br/><br/></span></strong>"; ?> + </td> + </tr> + <tr> + <td> + <table class="tabcont" width="100%" border="0" cellspacing="0" cellpadding="0"> + <tr> + <td width="16"><img + src="../themes/<?= $g['theme']; ?>/images/icons/icon_block.gif" + width="11" height="11"></td> + <td>Rule Enabled</td> + </tr> + <tr> + <td><img + src="../themes/<?= $g['theme']; ?>/images/icons/icon_block_d.gif" + width="11" height="11"></td> + <td nowrap>Rule Disabled</td> + </tr> + <tr> + <!-- TODO: add save and cancel for checkbox options --> + <!-- <td><pre><input name="Submit" type="submit" class="formbtn" value="Save"> <input type="button" class="formbtn" value="Cancel" onclick="history.back()"><pre></td> --> + </tr> + <tr> + <td colspan="10"> + <p><!--<strong><span class="red">Warning:<br/> </span></strong>Editing these r</p>--> + </td> + </tr> + </table> + </td> + </tr> + </table> + </td> +</tr> +</table> +</form> +<?php include("fend.inc"); ?> +</body> +</html> |