BETA version of Suricata 1.4.6 IDS package v0.1 for pfSense.

1 files changed, 272 insertions, 0 deletions

diff --git a/config/suricata/suricata_import_aliases.php b/config/suricata/suricata_import_aliases.php
new file mode 100644
index 00000000..c16ac65d
--- /dev/null
+++ b/config/suricata/suricata_import_aliases.php
@@ -0,0 +1,272 @@
+<?php
+/* $Id$ */
+/*
+	suricata_import_aliases.php
+	Copyright (C) 2014 Bill Meeks
+	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("guiconfig.inc");
+require_once("functions.inc");
+require_once("/usr/local/pkg/suricata/suricata.inc");
+
+// Retrieve any passed QUERY STRING or POST variables
+$id = $_GET['id'];
+$eng = $_GET['eng'];
+if (isset($_POST['id']))
+	$id = $_POST['id'];
+if (isset($_POST['eng']))
+	$eng = $_POST['eng'];
+
+// Make sure we have a valid rule ID and ENGINE name, or
+// else bail out to top-level menu. 
+if (is_null($id) || is_null($eng)) {
+ 	header("Location: /suricata/suricata_interfaces.php");
+	exit;
+}
+
+// Used to track if any selectable Aliases are found
+$selectablealias = false;
+
+// Initialize required array variables as necessary
+if (!is_array($config['aliases']['alias']))
+	$config['aliases']['alias'] = array();
+$a_aliases = $config['aliases']['alias'];
+if (!is_array($config['installedpackages']['suricata']['rule']))
+	$config['installedpackages']['suricata']['rule'] = array();
+
+// The $eng variable points to the specific Suricata config section
+// engine we are importing values into.  Initialize the config.xml
+// array if necessary.
+if (!is_array($config['installedpackages']['suricata']['rule'][$id][$eng]['item']))
+	$config['installedpackages']['suricata']['rule'][$id][$eng]['item'] = array();
+
+// Initialize a pointer to the Suricata config section engine we are
+// importing values into.
+$a_nat = &$config['installedpackages']['suricata']['rule'][$id][$eng]['item'];
+
+// Build a lookup array of currently used engine 'bind_to' Aliases 
+// so we can screen matching Alias names from the list.
+$used = array();
+foreach ($a_nat as $v)
+	$used[$v['bind_to']] = true;
+
+// Construct the correct return URL based on the Suricata config section
+// engine we were called with.  This lets us return to the page we were
+// called from.
+switch ($eng) {
+	case "host_os_policy":
+		$returl = "/suricata/suricata_flow_stream.php";
+		$multi_ip = true;
+		$title = "Host Operating System Policy";
+		break;
+	case "libhtp_policy":
+		$returl = "/suricata/suricata_app_parsers.php";
+		$multi_ip = true;
+		$title = "HTTP Server Policy";
+		break;
+	default:
+		$returl = "/suricata/suricata_interface_edit";
+		$multi_ip = true;
+		$title = "";
+}
+
+if ($_POST['cancel']) {
+	header("Location: {$returl}?id={$id}");
+	exit;
+}
+
+if ($_POST['save']) {
+
+	// Define default engine configurations for each of the supported engines.
+	$def_os_policy = array( "name" => "", "bind_to" => "", "policy" => "bsd" );
+
+	$def_libhtp_policy = array( "name" => "default", "bind_to" => "all", "personality" => "IDS", 
+				    "request-body-limit" => 4096, "response-body-limit" => 4096, 
+				    "double-decode-path" => "no", "double-decode-query" => "no" );
+
+	// Figure out which engine type we are importing and set up default engine array
+	$engine = array();
+	switch ($eng) {
+		case "host_os_policy":
+			$engine = $def_os_policy;
+			break;
+		case "libhtp_policy":
+			$engine = $def_libhtp_policy;
+			break;
+		default:
+			$engine = "";
+			$input_errors[] = gettext("Invalid ENGINE TYPE passed in query string.  Aborting operation.");
+	}
+
+	// See if anything was checked to import
+	if (is_array($_POST['toimport']) && count($_POST['toimport']) > 0) {
+		foreach ($_POST['toimport'] as $item) {
+			$engine['name'] = strtolower($item);
+			$engine['bind_to'] = $item;
+			$a_nat[] = $engine;
+		}
+	}
+	else
+		$input_errors[] = gettext("No entries were selected for import.  Please select one or more Aliases for import and click SAVE.");
+
+	// if no errors, write new entry to conf
+	if (!$input_errors) {
+		// Reorder the engine array to ensure the 
+		// 'bind_to=all' entry is at the bottom if 
+		// the array contains more than one entry.
+		if (count($a_nat) > 1) {
+			$i = -1;
+			foreach ($a_nat as $f => $v) {
+				if ($v['bind_to'] == "all") {
+					$i = $f;
+					break;
+				}
+			}
+			// Only relocate the entry if we 
+			// found it, and it's not already 
+			// at the end.
+			if ($i > -1 && ($i < (count($a_nat) - 1))) {
+				$tmp = $a_nat[$i];
+				unset($a_nat[$i]);
+				$a_nat[] = $tmp;
+			}
+		}
+
+		// Now write the new engine array to conf and return
+		write_config();
+
+		header("Location: {$returl}?id={$id}");
+		exit;
+	}
+}
+
+$pgtitle = gettext("Suricata: Import Host/Network Alias for {$title}");
+include("head.inc");
+
+?>
+
+<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
+<?php include("fbegin.inc"); ?>
+<form action="suricata_import_aliases.php" method="post">
+<input type="hidden" name="id" value="<?=$id;?>">
+<input type="hidden" name="eng" value="<?=$eng;?>">
+<?php if ($input_errors) print_input_errors($input_errors); ?>
+<div id="boxarea">
+<table width="100%" border="0" cellpadding="0" cellspacing="0">
+<tr>
+	<td class="tabcont"><strong><?=gettext("Select one or more Aliases to use as {$title} targets from the list below.");?></strong><br/>
+	</td>
+</tr>
+<tr>
+	<td class="tabcont">
+		<table id="sortabletable1" style="table-layout: fixed;" class="sortable" width="100%" border="0" cellpadding="0" cellspacing="0">
+			<colgroup>
+				<col width="5%" align="center">
+				<col width="25%" align="left" axis="string">
+				<col width="35%" align="left" axis="string">
+				<col width="35%" align="left" axis="string">
+			</colgroup>
+			<thead>
+			   <tr>
+				<th class="listhdrr"></th>
+				<th class="listhdrr" axis="string"><?=gettext("Alias Name"); ?></th>
+				<th class="listhdrr" axis="string"><?=gettext("Values"); ?></th>
+				<th class="listhdrr" axis="string"><?=gettext("Description"); ?></th>
+			   </tr>
+			</thead>
+		<tbody>
+		  <?php $i = 0; foreach ($a_aliases as $alias): ?>
+			<?php if ($alias['type'] <> "host" && $alias['type'] <> "network")
+				continue;
+			      if (isset($used[$alias['name']]))
+				continue;
+			      elseif (trim(filter_expand_alias($alias['name'])) == "") {
+				$textss = "<span class=\"gray\">";
+				$textse = "</span>";
+				$disable = true;
+			        $tooltip = gettext("Aliases representing a FQDN host cannot be used in Suricata Host OS Policy configurations.");
+			      }
+			      else {
+				$textss = "";
+				$textse = "";
+				$disable = "";
+				$selectablealias = true;
+			        $tooltip = gettext("Selected entries will be imported. Click to toggle selection of this entry.");
+			      }
+			?>
+			<?php if ($disable): ?>
+			<tr title="<?=$tooltip;?>">
+			  <td class="listlr" align="center"><img src="../themes/<?=$g['theme'];?>/images/icons/icon_block_d.gif" width="11" height"11" border="0"/>
+			<?php else: ?>
+			<tr>
+			  <td class="listlr" align="center"><input type="checkbox" name="toimport[]" value="<?=htmlspecialchars($alias['name']);?>" title="<?=$tooltip;?>"/></td>
+			<?php endif; ?>
+			  <td class="listr" align="left"><?=$textss . htmlspecialchars($alias['name']) . $textse;?></td>
+			  <td class="listr" align="left">
+			      <?php
+				$tmpaddr = explode(" ", $alias['address']);
+				$addresses = implode(", ", array_slice($tmpaddr, 0, 10));
+				echo "{$textss}{$addresses}{$textse}";
+				if(count($tmpaddr) > 10) {
+					echo "...";
+				}
+			    ?>
+			  </td>
+			  <td class="listbg" align="left">
+			    <?=$textss . htmlspecialchars($alias['descr']) . $textse;?>&nbsp;
+			  </td>
+			</tr>
+		  <?php $i++; endforeach; ?>
+		</table>
+	</td>
+</tr>
+<?php if (!$selectablealias): ?>
+<tr>
+	<td class="tabcont" align="center"><b><?php echo gettext("There are currently no defined Aliases eligible for import.");?></b></td>
+</tr>
+<tr>
+	<td class="tabcont" align="center">
+	<input type="Submit" name="cancel" value="Cancel" id="cancel" class="formbtn" title="<?=gettext("Cancel import operation and return");?>"/>
+	</td>
+</tr>
+<?php else: ?>
+<tr>
+	<td class="tabcont" align="center">
+	<input type="Submit" name="save" value="Save" id="save" class="formbtn" title="<?=gettext("Import selected item and return");?>"/>&nbsp;&nbsp;&nbsp;
+	<input type="Submit" name="cancel" value="Cancel" id="cancel" class="formbtn" title="<?=gettext("Cancel import operation and return");?>"/>
+	</td>
+</tr>
+<?php endif; ?>
+<tr>
+	<td class="tabcont">
+	<span class="vexpl"><span class="red"><strong><?=gettext("Note:"); ?><br></strong></span><?=gettext("Fully-Qualified Domain Name (FQDN) host Aliases cannot be used as Suricata configuration parameters.  Aliases resolving to a single FQDN value are disabled in the list above.  In the case of nested Aliases where one or more of the nested values is a FQDN host, the FQDN host will not be included in the {$title} configuration.");?></span>
+	</td>
+</tr>
+</table>
+</div>
+</form>
+<?php include("fend.inc"); ?>
+</body>
+</html>