diff options
Diffstat (limited to 'config/snort/snort_ip_reputation.php')
| -rw-r--r-- | config/snort/snort_ip_reputation.php | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/config/snort/snort_ip_reputation.php b/config/snort/snort_ip_reputation.php new file mode 100644 index 00000000..3de8c661 --- /dev/null +++ b/config/snort/snort_ip_reputation.php @@ -0,0 +1,506 @@ +<?php +/* + * snort_ip_reputation.php + * part of pfSense + * + * 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_once("guiconfig.inc"); +require_once("/usr/local/pkg/snort/snort.inc"); + +global $g, $rebuild_rules; + +if (isset($_POST['id']) && is_numericint($_POST['id'])) + $id = $_POST['id']; +elseif (isset($_GET['id']) && is_numericint($_GET['id'])) + $id = htmlspecialchars($_GET['id']); + +if (is_null($id)) { + header("Location: /snort/snort_interfaces.php"); + exit; +} + +if (!is_array($config['installedpackages']['snortglobal']['rule'])) { + $config['installedpackages']['snortglobal']['rule'] = array(); +} +if (!is_array($config['installedpackages']['snortglobal']['rule'][$id]['wlist_files']['item'])) { + $config['installedpackages']['snortglobal']['rule'][$id]['wlist_files']['item'] = array(); +} +if (!is_array($config['installedpackages']['snortglobal']['rule'][$id]['blist_files']['item'])) { + $config['installedpackages']['snortglobal']['rule'][$id]['blist_files']['item'] = array(); +} + +$a_nat = &$config['installedpackages']['snortglobal']['rule']; + +$pconfig = $a_nat[$id]; +$iprep_path = IPREP_PATH; +$if_real = get_real_interface($a_nat[$id]['interface']); +$snort_uuid = $config['installedpackages']['snortglobal']['rule'][$id]['uuid']; + +// Set sensible defaults for any empty parameters +if (empty($pconfig['iprep_memcap'])) + $pconfig['iprep_memcap'] = '500'; +if (empty($pconfig['iprep_priority'])) + $pconfig['iprep_priority'] = 'whitelist'; +if (empty($pconfig['iprep_nested_ip'])) + $pconfig['iprep_nested_ip'] = 'inner'; +if (empty($pconfig['iprep_white'])) + $pconfig['iprep_white'] = 'unblack'; + +if ($_POST['mode'] == 'blist_add' && isset($_POST['iplist'])) { + $pconfig = $_POST; + + // Test the supplied IP List file to see if it exists + if (file_exists($_POST['iplist'])) { + // See if the file is already assigned to the interface + foreach ($a_nat[$id]['blist_files']['item'] as $f) { + if ($f == basename($_POST['iplist'])) { + $input_errors[] = gettext("The file {$f} is already assigned as a blacklist file."); + break; + } + } + if (!$input_errors) { + $a_nat[$id]['blist_files']['item'][] = basename($_POST['iplist']); + write_config("Snort pkg: added new blacklist file for IP REPUTATION preprocessor."); + mark_subsystem_dirty('snort_iprep'); + } + } + else + $input_errors[] = gettext("The file '{$_POST['iplist']}' could not be found."); + + $pconfig['blist_files'] = $a_nat[$id]['blist_files']; + $pconfig['wlist_files'] = $a_nat[$id]['wlist_files']; +} + +if ($_POST['mode'] == 'wlist_add' && isset($_POST['iplist'])) { + $pconfig = $_POST; + + // Test the supplied IP List file to see if it exists + if (file_exists($_POST['iplist'])) { + // See if the file is already assigned to the interface + foreach ($a_nat[$id]['wlist_files']['item'] as $f) { + if ($f == basename($_POST['iplist'])) { + $input_errors[] = gettext("The file {$f} is already assigned as a whitelist file."); + break; + } + } + if (!$input_errors) { + $a_nat[$id]['wlist_files']['item'][] = basename($_POST['iplist']); + write_config("Snort pkg: added new whitelist file for IP REPUTATION preprocessor."); + mark_subsystem_dirty('snort_iprep'); + } + } + else + $input_errors[] = gettext("The file '{$_POST['iplist']}' could not be found."); + + $pconfig['blist_files'] = $a_nat[$id]['blist_files']; + $pconfig['wlist_files'] = $a_nat[$id]['wlist_files']; +} + +if ($_POST['blist_del'] && is_numericint($_POST['list_id'])) { + $pconfig = $_POST; + unset($a_nat[$id]['blist_files']['item'][$_POST['list_id']]); + write_config("Snort pkg: deleted blacklist file for IP REPUTATION preprocessor."); + mark_subsystem_dirty('snort_iprep'); + $pconfig['blist_files'] = $a_nat[$id]['blist_files']; + $pconfig['wlist_files'] = $a_nat[$id]['wlist_files']; +} + +if ($_POST['wlist_del'] && is_numericint($_POST['list_id'])) { + $pconfig = $_POST; + unset($a_nat[$id]['wlist_files']['item'][$_POST['list_id']]); + write_config("Snort pkg: deleted whitelist file for IP REPUTATION preprocessor."); + mark_subsystem_dirty('snort_iprep'); + $pconfig['wlist_files'] = $a_nat[$id]['wlist_files']; + $pconfig['blist_files'] = $a_nat[$id]['blist_files']; +} + +if ($_POST['save'] || $_POST['apply']) { + + $natent = array(); + $natent = $pconfig; + + if (!is_numericint($_POST['iprep_memcap']) || strval($_POST['iprep_memcap']) < 1 || strval($_POST['iprep_memcap']) > 4095) + $input_errors[] = gettext("The value for Memory Cap must be an integer between 1 and 4095."); + + // if no errors write to conf + if (!$input_errors) { + + $natent['reputation_preproc'] = $_POST['reputation_preproc'] ? 'on' : 'off'; + $natent['iprep_scan_local'] = $_POST['iprep_scan_local'] ? 'on' : 'off'; + $natent['iprep_memcap'] = $_POST['iprep_memcap']; + $natent['iprep_priority'] = $_POST['iprep_priority']; + $natent['iprep_nested_ip'] = $_POST['iprep_nested_ip']; + $natent['iprep_white'] = $_POST['iprep_white']; + + $a_nat[$id] = $natent; + + write_config("Snort pkg: modified IP REPUTATION preprocessor settings for {$a_nat[$id]['interface']}."); + + // Update the snort conf file for this interface + $rebuild_rules = false; + snort_generate_conf($a_nat[$id]); + + // Soft-restart Snort to live-load new variables + snort_reload_config($a_nat[$id]); + $pconfig = $natent; + + // We have saved changes and done a soft restart, so clear "dirty" flag + clear_subsystem_dirty('snort_iprep'); + } + else + $pconfig = $_POST; +} + +$if_friendly = convert_friendly_interface_to_friendly_descr($a_nat[$id]['interface']); +$pgtitle = gettext("Snort: Interface {$if_friendly} IP Reputation Preprocessor"); +include_once("head.inc"); + +?> +<body link="#0000CC" vlink="#0000CC" alink="#0000CC"> + +<?php +include("fbegin.inc"); +/* Display Alert message */ +if ($input_errors) + print_input_errors($input_errors); +if ($savemsg) + print_info_box($savemsg); +?> + +<form action="snort_ip_reputation.php" method="post" name="iform" id="iform" > +<input name="id" type="hidden" value="<?=$id;?>" /> +<input type="hidden" id="mode" name="mode" value="" /> +<input name="iplist" id="iplist" type="hidden" value="" /> +<input name="list_id" id="list_id" type="hidden" value="" /> + +<?php if (is_subsystem_dirty('snort_iprep')): ?><p> +<?php print_info_box_np(gettext("A change has been made to blacklist or whitelist file assignments.") . "<br/>" . gettext("You must apply the changes in order for them to take effect."));?> +<?php endif; ?> + +<table width="100%" border="0" cellpadding="0" cellspacing="0"> + <tr> + <td> + <?php + $tab_array = array(); + $tab_array[0] = array(gettext("Snort Interfaces"), true, "/snort/snort_interfaces.php"); + $tab_array[1] = array(gettext("Global Settings"), false, "/snort/snort_interfaces_global.php"); + $tab_array[2] = array(gettext("Updates"), false, "/snort/snort_download_updates.php"); + $tab_array[3] = array(gettext("Alerts"), false, "/snort/snort_alerts.php?instance={$id}"); + $tab_array[4] = array(gettext("Blocked"), false, "/snort/snort_blocked.php"); + $tab_array[5] = array(gettext("Pass Lists"), false, "/snort/snort_passlist.php"); + $tab_array[6] = array(gettext("Suppress"), false, "/snort/snort_interfaces_suppress.php"); + $tab_array[7] = array(gettext("IP Lists"), false, "/snort/snort_ip_list_mgmt.php"); + $tab_array[8] = array(gettext("Sync"), false, "/pkg_edit.php?xml=snort/snort_sync.xml"); + display_top_tabs($tab_array, true); + echo '</td></tr>'; + echo '<tr><td class="tabnavtbl">'; + $menu_iface=($if_friendly?substr($if_friendly,0,5)." ":"Iface "); + $tab_array = array(); + $tab_array[] = array($menu_iface . gettext(" Settings"), false, "/snort/snort_interfaces_edit.php?id={$id}"); + $tab_array[] = array($menu_iface . gettext("Categories"), false, "/snort/snort_rulesets.php?id={$id}"); + $tab_array[] = array($menu_iface . gettext("Rules"), false, "/snort/snort_rules.php?id={$id}"); + $tab_array[] = array($menu_iface . gettext("Variables"), false, "/snort/snort_define_servers.php?id={$id}"); + $tab_array[] = array($menu_iface . gettext("Preprocs"), false, "/snort/snort_preprocessors.php?id={$id}"); + $tab_array[] = array($menu_iface . gettext("Barnyard2"), false, "/snort/snort_barnyard.php?id={$id}"); + $tab_array[] = array($menu_iface . gettext("IP Rep"), true, "/snort/snort_ip_reputation.php?id={$id}"); + display_top_tabs($tab_array, true); + ?> + </td> + </tr> + <tr> + <td><div id="mainarea"> + <table id="maintable" class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0"> + <tr> + <td colspan="2" valign="top" class="listtopic"><?php echo gettext("IP Reputation Preprocessor Configuration"); ?></td> + </tr> + <tr> + <td width="22%" valign='top' class='vncell'><?php echo gettext("Enable"); ?> + </td> + <td width="78%" class="vtable"><input name="reputation_preproc" type="checkbox" value="on" <?php if ($pconfig['reputation_preproc'] == "on") echo "checked"; ?>/> + <?php echo gettext("Use IP Reputation Lists on this interface. Default is ") . "<strong>" . gettext("Not Checked.") . "</strong>"; ?> + </td> + </tr> + <tr> + <td valign="top" class="vncell"><?php echo gettext("Memory Cap"); ?></td> + <td class="vtable"><input name="iprep_memcap" type="text" class="formfld unknown" + id="http_inspect_memcap" size="9" + value="<?=htmlspecialchars($pconfig['iprep_memcap']);?>"> + <?php echo gettext("Maximum memory in megabytes (MB) supported for IP Reputation Lists. Default is ") . "<strong>" . + gettext("500.") . "</strong><br/>" . gettext("The Minimum value is ") . + "<strong>" . gettext("1 MB") . "</strong>" . gettext(" and the Maximum is ") . "<strong>" . + gettext("4095 MB.") . "</strong> " . gettext("Enter an integer value between 1 and 4095."); ?><br/> + </td> + </tr> + <tr> + <td width="22%" valign='top' class='vncell'><?php echo gettext("Scan Local"); ?> + </td> + <td width="78%" class="vtable"><input name="iprep_scan_local" type="checkbox" value="on" <?php if ($pconfig['iprep_scan_local'] == "on") echo "checked"; ?>/> + <?php echo gettext("Scan RFC 1918 addresses on this interface. Default is ") . "<strong>" . gettext("Not Checked.") . "</strong>"; ?><br/> + <?php echo gettext("When checked, Snort will inspect addresses in the 10/8, 172.16/12 and 192.168/16 ranges defined in RFC 1918.");?><br/><br/> + <span class="red"><strong><?=gettext("Hint: ");?></strong></span><?=gettext("if these address ranges are used in your internal network, and this instance ") . + gettext("is on an internal interface, this option should usually be enabled (checked).");?> + </td> + </tr> + <tr> + <td width="22%" valign="top" class="vncell"><?php echo gettext("Nested IP"); ?></td> + <td width="78%" class="vtable"> + <input name="iprep_nested_ip" type="radio" id="iprep_nested_ip_inner" + value="inner" <?php if ($pconfig['iprep_nested_ip'] == 'inner') echo "checked";?>/> + <?php echo gettext("Inner"); ?> <input name="iprep_nested_ip" type="radio" id="iprep_nested_ip_outer" + value="outer" <?php if ($pconfig['iprep_nested_ip'] == 'outer') echo "checked";?>/> + <?php echo gettext("Outer"); ?> <input name="iprep_nested_ip" type="radio" id="iprep_nested_ip_both" + value="both" <?php if ($pconfig['iprep_nested_ip'] == 'both') echo "checked";?>/> + <?php echo gettext("Both"); ?><br/> + <?php echo gettext("Specify which IP address to use for whitelist/blacklist matching when there is IP encapsulation. Default is ") . "<strong>" . gettext("Inner") . "</strong>."; ?> + </td> + </tr> + <tr> + <td width="22%" valign="top" class="vncell"><?php echo gettext("Priority"); ?></td> + <td width="78%" class="vtable"> + <input name="iprep_priority" type="radio" id="iprep_priority_blacklist" + value="blacklist" <?php if ($pconfig['iprep_priority'] == 'blacklist') echo "checked";?>/> + <?php echo gettext("Blacklist"); ?> <input name="iprep_priority" type="radio" id="iprep_priority" + value="whitelist" <?php if ($pconfig['iprep_priority'] == 'whitelist') echo "checked";?>/> + <?php echo gettext("Whitelist"); ?><br/> + <?php echo gettext("Specify which list has priority when source/destination is on blacklist while destination/source is on whitelist.") . + "<br/>" . gettext("Default is ") . "<strong>" . gettext("Whitelist") . "</strong>."; ?> + </td> + </tr> + <tr> + <td width="22%" valign="top" class="vncell"><?php echo gettext("Whitelist Meaning"); ?></td> + <td width="78%" class="vtable"> + <input name="iprep_white" type="radio" id="iprep_white_unblack" + value="unblack" <?php if ($pconfig['iprep_white'] == 'unblack') echo "checked";?>/> + <?php echo gettext("Unblack"); ?> <input name="iprep_white" type="radio" id="iprep_white_trust" + value="trust" <?php if ($pconfig['iprep_white'] == 'trust') echo "checked";?>/> + <?php echo gettext("Trust"); ?><br/> + <?php echo gettext("Specify the meaning of whitelist. \"Unblack\" unblacks blacklisted IP addresses and routes them for further inspection. \"Trust\" means the packet bypasses all further Snort detection. ") . + gettext("Default is ") . "<strong>" . gettext("Unblack") . "</strong>."; ?> + </td> + </tr> + <tr> + <td width="22%" valign="top" class="vncell"> </td> + <td width="78%" class="vtable"> + <input name="save" type="submit" class="formbtn" value="Save" title="<?=gettext("Save IP Reputation configuration");?>" /> + <?=gettext("Click to save configuration settings and live-reload the running Snort configuration.");?> + </td> + </tr> + <tr> + <td colspan="2" valign="top" class="listtopic"><?php echo gettext("Assign Blacklists/Whitelists to IP Reputation Preprocessor"); ?></td> + </tr> + <tr> + <td width="22%" valign='top' class='vncell'><?php echo gettext("Blacklist Files"); ?> + </td> + <td width="78%" class="vtable"> + <!-- blist_chooser --> + <div id="blistChooser" name="blistChooser" style="display:none; border:1px dashed gray; width:98%;"></div> + <table width="95%" border="0" cellpadding="2" cellspacing="0"> + <colgroup> + <col style="text-align:left;"> + <col style="width: 30%; text-align:left;"> + <col style="width: 17px;"> + </colgroup> + <thead> + <tr> + <th class="listhdrr"><?php echo gettext("Blacklist Filename"); ?></th> + <th class="listhdrr"><?php echo gettext("Modification Time"); ?></th> + <th class="list" align="left" valign="middle"><img style="cursor:pointer;" name="blist_add" id="blist_add" + src="../themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" + height="17" border="0" title="<?php echo gettext('Assign a blacklist file');?>"/></th> + </tr> + </thead> + <tbody> + <?php foreach($pconfig['blist_files']['item'] as $k => $f): + $class = "listr"; + if (!file_exists("{$iprep_path}{$f}")) { + $filedate = gettext("Unknown -- file missing"); + $class .= " red"; + } + else + $filedate = date('M-d Y g:i a', filemtime("{$iprep_path}{$f}")); + ?> + <tr> + <td class="<?=$class;?>"><?=htmlspecialchars($f);?></td> + <td class="<?=$class;?>" align="center"><?=$filedate;?></td> + <td class="list"><input type="image" name="blist_del[]" id="blist_del[]" onClick="document.getElementById('list_id').value='<?=$k;?>';" + src="../themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" + border="0" title="<?php echo gettext('Remove this blacklist file');?>"/></td> + </tr> + <?php endforeach; ?> + <tr> + <td colspan="2" class="vexpl"><span class="red"><strong><?=gettext("Note: ");?></strong></span> + <?=gettext("changes to blacklist assignments are immediately saved.");?></td> + </tr> + </tbody> + </table> + </td> + </tr> + <tr> + <td width="22%" valign='top' class='vncell'><?php echo gettext("Whitelist Files"); ?> + </td> + <td width="78%" class="vtable"> + <table width="95%" border="0" cellpadding="2" cellspacing="0"> + <!-- wlist_chooser --> + <div id="wlistChooser" name="wlistChooser" style="display:none; border:1px dashed gray; width:98%;"></div> + <colgroup> + <col style="text-align:left;"> + <col style="width: 30%; text-align:left;"> + <col style="width: 17px;"> + </colgroup> + <thead> + <tr> + <th class="listhdrr"><?php echo gettext("Whitelist Filename"); ?></th> + <th class="listhdrr"><?php echo gettext("Modification Time"); ?></th> + <th class="list" align="left" valign="middle"><img style="cursor:pointer;" name="wlist_add" id="wlist_add" + src="../themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" + border="0" title="<?php echo gettext('Assign a whitelist file');?>"/></th> + </tr> + </thead> + <tbody> + <?php foreach($pconfig['wlist_files']['item'] as $k => $f): + $class = "listr"; + if (!file_exists("{$iprep_path}{$f}")) { + $filedate = gettext("Unknown -- file missing"); + $class .= " red"; + } + else + $filedate = date('M-d Y g:i a', filemtime("{$iprep_path}{$f}")); + ?> + <tr> + <td class="<?=$class;?>"><?=htmlspecialchars($f);?></td> + <td class="<?=$class;?>" align="center"><?=$filedate;?></td> + <td class="list"><input type="image" name="wlist_del[]" id="wlist_del[]" onClick="document.getElementById('list_id').value='<?=$k;?>';" + src="../themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" + border="0" title="<?php echo gettext('Remove this whitelist file');?>"/></td> + </tr> + <?php endforeach; ?> + <tr> + <td colspan="2" class="vexpl"><span class="red"><strong><?=gettext("Note: ");?></strong></span> + <?=gettext("changes to whitelist assignments are immediately saved.");?></td> + </tr> + </tbody> + </table> + </td> + </tr> + </table> + </div> + </td> + </tr> +</table> + +<script type="text/javascript"> +Event.observe( + window, "load", + function() { + Event.observe( + "blist_add", "click", + function() { + Effect.Appear("blistChooser", { duration: 0.25 }); + blistChoose(); + } + ); + + Event.observe( + "wlist_add", "click", + function() { + Effect.Appear("wlistChooser", { duration: 0.25 }); + wlistChoose(); + } + ); + } +); + +function blistChoose() { + Effect.Appear("blistChooser", { duration: 0.25 }); + if($("fbCurrentDir")) + $("fbCurrentDir").innerHTML = "Loading ..."; + + new Ajax.Request( + "/snort/snort_iprep_list_browser.php?container=blistChooser&target=iplist&val=" + new Date().getTime(), + { method: "get", onComplete: blistComplete } + ); +} + +function wlistChoose() { + Effect.Appear("wlistChooser", { duration: 0.25 }); + if($("fbCurrentDir")) + $("fbCurrentDir").innerHTML = "Loading ..."; + + new Ajax.Request( + "/snort/snort_iprep_list_browser.php?container=wlistChooser&target=iplist&val=" + new Date().getTime(), + { method: "get", onComplete: wlistComplete } + ); +} + +function blistComplete(req) { + $("blistChooser").innerHTML = req.responseText; + + var actions = { + fbClose: function() { $("blistChooser").hide(); }, + fbFile: function() { $("iplist").value = this.id; + $("mode").value = 'blist_add'; + document.getElementById('iform').submit(); + } + } + + for(var type in actions) { + var elem = $("blistChooser"); + var list = elem.getElementsByClassName(type); + for (var i=0; i<list.length; i++) { + Event.observe(list[i], "click", actions[type]); + list[i].style.cursor = "pointer"; + } + } +} + +function wlistComplete(req) { + $("wlistChooser").innerHTML = req.responseText; + + var actions = { + fbClose: function() { $("wlistChooser").hide(); }, + fbFile: function() { $("iplist").value = this.id; + $("mode").value = 'wlist_add'; + document.getElementById('iform').submit(); + } + } + + for(var type in actions) { + var elem = $("wlistChooser"); + var list = elem.getElementsByClassName(type); + for (var i=0; i<list.length; i++) { + Event.observe(list[i], "click", actions[type]); + list[i].style.cursor = "pointer"; + } + } +} + +</script> + +</form> +<?php include("fend.inc"); ?> +</body> +</html> |