diff options
Diffstat (limited to 'config/snort/snort_rules.php')
| -rw-r--r-- | config/snort/snort_rules.php | 652 |
1 files changed, 191 insertions, 461 deletions
diff --git a/config/snort/snort_rules.php b/config/snort/snort_rules.php index 3975fd2c..871eb39e 100644 --- a/config/snort/snort_rules.php +++ b/config/snort/snort_rules.php @@ -1,7 +1,6 @@ <?php -/* $Id$ */ /* - edit_snortrule.php + snort_rules.php Copyright (C) 2004, 2005 Scott Ullrich Copyright (C) 2008, 2009 Robert Zelaya Copyright (C) 2011 Ermal Luci @@ -43,6 +42,10 @@ $a_nat = &$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']; @@ -52,7 +55,6 @@ if (isset($id) && $a_nat[$id]) { /* 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 */ @@ -135,65 +137,27 @@ function get_middle($source, $beginning, $ending, $init_pos) { function write_rule_file($content_changed, $received_file) { - //read snort file with writing enabled - $filehandle = fopen($received_file, "w"); - - //delimiter for each new rule is a new line - $delimiter = "\n"; - - //implode the array back into a string for writing purposes - $fullfile = implode($delimiter, $content_changed); - - //write data to file - fwrite($filehandle, $fullfile); - - //close file handle - fclose($filehandle); - + @file_put_contents($received_file, implode("\n", $content_changed)); } function load_rule_file($incoming_file) { - - //read snort file - $filehandle = fopen($incoming_file, "r"); - //read file into string, and get filesize - $contents = fread($filehandle, filesize($incoming_file)); - - //close handler - fclose ($filehandle); - - - //string for populating category select - $currentruleset = basename($rulefile); - - //delimiter for each new rule is a new line - $delimiter = "\n"; + $contents = @file_get_contents($incoming_file); //split the contents of the string file into an array using the delimiter - $splitcontents = explode($delimiter, $contents); - - return $splitcontents; - + return explode("\n", $contents); } -/* -if ($_GET['openruleset'] != '' && $_GET['ids'] != '') { - header("Location: /snort/snort_rules.php?id=$id&openruleset={$_GET['openruleset']}&saved=yes"); - exit; -} -*/ - -//$ruledir = "/usr/local/etc/snort/snort_{$iface_uuid}_{$if_real}/rules/"; -$ruledir = "/usr/local/etc/snort/rules/"; +$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[] = $filename; + $files[] = basename($filename); } sort($files); @@ -205,200 +169,50 @@ else //Load the rule file $splitcontents = load_rule_file($rulefile); -if ($_POST) -{ +if ($_GET['act'] == "toggle" && $_GET['ids']) { - conf_mount_rw(); - - if (!$_POST['apply']) { - //retrieve POST data - $post_lineid = $_POST['lineid']; - $post_enabled = $_POST['enabled']; - $post_src = $_POST['src']; - $post_srcport = $_POST['srcport']; - $post_dest = $_POST['dest']; - $post_destport = $_POST['destport']; - - //clean up any white spaces insert by accident - $post_src = str_replace(" ", "", $post_src); - $post_srcport = str_replace(" ", "", $post_srcport); - $post_dest = str_replace(" ", "", $post_dest); - $post_destport = str_replace(" ", "", $post_destport); - - //copy rule contents from array into string - $tempstring = $splitcontents[$post_lineid]; - - //search string - $findme = "# alert"; //find string for disabled alerts - - //find if alert is disabled - $disabled = strstr($tempstring, $findme); - - //if find alert is false, then rule is disabled - if ($disabled !== false) - { - //has rule been enabled - if ($post_enabled == "yes") - { - //move counter up 1, so we do not retrieve the # in the rule_content array - $tempstring = str_replace("# alert", "alert", $tempstring); - $counter2 = 1; - } - else - { - //rule is staying disabled - $counter2 = 2; - } - } - else - { - //has rule been disabled - if ($post_enabled != "yes") - { - //move counter up 1, so we do not retrieve the # in the rule_content array - $tempstring = str_replace("alert", "# alert", $tempstring); - $counter2 = 2; - } - else - { - //rule is staying enabled - $counter2 = 1; - } - } - - //explode rule contents into an array, (delimiter is space) - $rule_content = explode(' ', $tempstring); - - //insert new values - $counter2++; - $rule_content[$counter2] = $post_src;//source location - $counter2++; - $rule_content[$counter2] = $post_srcport;//source port location - $counter2 = $counter2+2; - $rule_content[$counter2] = $post_dest;//destination location - $counter2++; - $rule_content[$counter2] = $post_destport;//destination port location - - //implode the array back into string - $tempstring = implode(' ', $rule_content); - - //copy string into file array for writing - $splitcontents[$post_lineid] = $tempstring; - - //write the new .rules file - write_rule_file($splitcontents, $rulefile); - - //once file has been written, reload file - $splitcontents = load_rule_file($rulefile); - - $stopMsg = true; - } - conf_mount_ro(); -} -else if ($_GET['act'] == "toggle") -{ - - conf_mount_rw(); - - $toggleid = $_GET['ids']; + $lineid= $_GET['ids']; //copy rule contents from array into string - $tempstring = $splitcontents[$toggleid]; + $tempstring = $splitcontents[$lineid]; //explode rule contents into an array, (delimiter is space) $rule_content = explode(' ', $tempstring); - //search string $findme = "# alert"; //find string for disabled alerts - - //find if alert is disabled $disabled = strstr($tempstring, $findme); //if find alert is false, then rule is disabled - if ($disabled !== false) - { + if ($disabled !== false) { //rule has been enabled - //move counter up 1, so we do not retrieve the # in the rule_content array - $tempstring = str_replace("# alert", "alert", $tempstring); - - } - else - { - //has rule been disabled - //move counter up 1, so we do not retrieve the # in the rule_content array - $tempstring = str_replace("alert", "# alert", $tempstring); - - } + $tempstring = substr($tempstring, 2); + } else + $tempstring = "# ". $tempstring; //copy string into array for writing - $splitcontents[$toggleid] = $tempstring; + $splitcontents[$lineid] = $tempstring; //write the new .rules file write_rule_file($splitcontents, $rulefile); - //once file has been written, reload file - $splitcontents = load_rule_file($rulefile); - - $stopMsg = true; - //write disable/enable sid to config.xml - if ($disabled == false) { - $string_sid = strstr($tempstring, 'sid:'); - $sid_pieces = explode(";", $string_sid); - $sid_off_cut = $sid_pieces[0]; - // sid being turned off - $sid_off = str_replace("sid:", "", $sid_off_cut); + $sid = get_middle($tempstring, 'sid:', ';', 0); + if (is_numeric($sid)) { // rule_sid_on registers - $sid_on_pieces = $a_nat[$id]['rule_sid_on']; - // if off sid is the same as on sid remove it - $sid_on_old = str_replace("||enablesid $sid_off", "", "$sid_on_pieces"); - // write the replace sid back as empty - $a_nat[$id]['rule_sid_on'] = $sid_on_old; - // rule sid off registers - $sid_off_pieces = $a_nat[$id]['rule_sid_off']; - // if off sid is the same as off sid remove it - $sid_off_old = str_replace("||disablesid $sid_off", "", "$sid_off_pieces"); - // write the replace sid back as empty - $a_nat[$id]['rule_sid_off'] = $sid_off_old; - // add sid off registers to new off sid - $a_nat[$id]['rule_sid_off'] = "||disablesid $sid_off" . $a_nat[$id]['rule_sid_off']; - } - else - { - $string_sid = strstr($tempstring, 'sid:'); - $sid_pieces = explode(";", $string_sid); - $sid_on_cut = $sid_pieces[0]; - // sid being turned off - $sid_on = str_replace("sid:", "", $sid_on_cut); - // rule_sid_off registers - $sid_off_pieces = $a_nat[$id]['rule_sid_off']; - // if off sid is the same as on sid remove it - $sid_off_old = str_replace("||disablesid $sid_on", "", "$sid_off_pieces"); - // write the replace sid back as empty - $a_nat[$id]['rule_sid_off'] = $sid_off_old; - // rule sid on registers - $sid_on_pieces = $a_nat[$id]['rule_sid_on']; - // if on sid is the same as on sid remove it - $sid_on_old = str_replace("||enablesid $sid_on", "", "$sid_on_pieces"); - // write the replace sid back as empty - $a_nat[$id]['rule_sid_on'] = $sid_on_old; - // add sid on registers to new on sid - $a_nat[$id]['rule_sid_on'] = "||enablesid $sid_on" . $a_nat[$id]['rule_sid_on']; + 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(); - conf_mount_ro(); - -} -if ($_GET['saved'] == 'yes') -{ - $message = "The Snort rule configuration has been changed.<br>You must restart this snort interface in order for the changes to take effect."; + write_config(); - // stop_service("snort"); - // sleep(2); - // start_service("snort"); - // $savemsg = ""; - // $stopMsg = false; + header("Location: /snort/snort_rules.php?id={$id}&openruleset={$rulefile}"); + exit; } $currentruleset = basename($rulefile); @@ -409,50 +223,25 @@ 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">' . $pgtitle . '</p>';}?> - +<body link="#0000CC" vlink="#0000CC" alink="#0000CC"> <?php +include("fbegin.inc"); +if ($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"> -<div class="body2"> - -<noscript> -<div class="alert" ALIGN=CENTER><img - src="../themes/<?php echo $g['theme']; ?>/images/icons/icon_alert.gif" /><strong>Please -enable JavaScript to view this content -</CENTER></div> -</noscript> - - -<?php -echo "<form action=\"snort_rules.php?id={$id}\" method=\"post\" name=\"iform\" id=\"iform\">"; -?> <?php if ($_GET['saved'] == 'yes') {print_info_box_np2($message);}?> -</form> -</script> <script language="javascript" type="text/javascript"> -<!-- +<script language="javascript" type="text/javascript"> function go() { - var agt=navigator.userAgent.toLowerCase(); - if (agt.indexOf("msie") != -1) { - box = document.forms.selectbox; - } else { - box = document.forms[1].selectbox; - } + var box = document.iform.selectbox; destination = box.options[box.selectedIndex].value; if (destination) location.href = destination; } -// --> -</script> <script type="text/javascript"> -<!-- function popup(url) { params = 'width='+screen.width; @@ -464,10 +253,9 @@ function popup(url) if (window.focus) {newwin.focus()} return false; } -// --> </script> -<table width="99%" border="0" cellpadding="0" cellspacing="0"> +<table style="table-layout:fixed;" width="99%" border="0" cellpadding="0" cellspacing="0"> <tr><td> <?php $tab_array = array(); @@ -488,199 +276,154 @@ function popup(url) display_top_tabs($tab_array); ?> </td></tr> - <tr> - <td> - <div id="mainarea2"> - <table id="maintable" class="tabcont" width="100%" border="0" - cellpadding="0" cellspacing="0"> - <tr> - <td> - <table id="ruletable1" class="sortable" width="100%" border="0" - cellpadding="0" cellspacing="0"> - <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> + <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); - </tr> - <tr> - <?php - - echo "<br>Category: "; - - //string for populating category select - $currentruleset = basename($rulefile); - - ?> - <form name="forms"><select name="selectbox" class="formfld" - onChange="go()"> - <?php - $i=0; - foreach ($files as $value) - { - $selectedruleset = ""; - if ($files[$i] === $currentruleset) - $selectedruleset = "selected"; - ?> - <option - value="?id=<?=$id;?>&openruleset=<?=$ruledir;?><?=$files[$i];?>" - <?=$selectedruleset;?>><?=$files[$i];?></option> - <?php - $i++; - - } - ?> - </select></form> - </tr> - <?php - - $counter = 0; - $printcounter = 0; - - foreach ( $splitcontents as $value ) - { - - $counter++; - $disabled = "False"; - $comments = "False"; - - $tempstring = $splitcontents[$counter]; - $findme = "# alert"; //find string for disabled alerts - - //find alert - $disabled_pos = strstr($tempstring, $findme); - - - //do soemthing, this rule is enabled - $counter2 = 1; - - //retrieve sid value - $sid = get_middle($tempstring, 'sid:', ';', 0); - - //check to see if the sid is numberical - $is_sid_num = is_numeric($sid); - - //if SID is numerical, proceed - if ($is_sid_num) - { - - //if find alert is false, then rule is disabled - if ($disabled_pos !== false){ - $counter2 = $counter2+1; - $textss = "<span class=\"gray\">"; - $textse = "</span>"; - $iconb = "icon_block_d.gif"; - } - else - { - $textss = $textse = ""; - $iconb = "icon_block.gif"; - } - - if ($disabled_pos !== false){ - $ischecked = ""; - }else{ - $ischecked = "checked"; - } - - $rule_content = explode(' ', $tempstring); - - $protocol = $rule_content[$counter2];//protocol location - $counter2++; - $source = $rule_content[$counter2];//source location - $counter2++; - $source_port = $rule_content[$counter2];//source port location - $counter2 = $counter2+2; - $destination = $rule_content[$counter2];//destination location - $counter2++; - $destination_port = $rule_content[$counter2];//destination port location - - if (strstr($tempstring, 'msg: "')) - $message = get_middle($tempstring, 'msg: "', '";', 0); - if (strstr($tempstring, 'msg:"')) - $message = get_middle($tempstring, '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 class=\"listlr\"> - $textss - $sid - $textse - </td> - <td class=\"listlr\"> - $textss - $protocol"; - ?> - <?php - $printcounter++; - echo "$textse - </td> - <td class=\"listlr\"> - $textss - $source - $textse - </td> - <td class=\"listlr\"> - $textss - $source_port - $textse - </td> - <td class=\"listlr\"> - $textss - $destination - $textse - </td> - <td class=\"listlr\"> - $textss - $destination_port - $textse - </td>"; - ?> - <td class="listbg"><font color="white"> <?php - echo "$textss + $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 $textse - </td>"; - ?> - <td valign="middle" nowrap class="list"> + </td>"; + ?> + <td valign="middle" nowrap class="list"> <table border="0" cellspacing="0" cellpadding="1"> - <tr> - <td><a href="javascript: void(0)" - onclick="popup('snort_rules_edit.php?id=<?=$id;?>&openruleset=<?=$rulefile;?>&ids=<?=$counter;?>')"><img - src="../themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" - title="edit rule" width="17" height="17" border="0"></a></td> + <tr> + <td><a href="javascript: void(0)" + onclick="popup('snort_rules_edit.php?id=<?=$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> + </tr> </table> - </td> - <?php - } - } - echo " There are $printcounter rules in this category. <br><br>"; - ?> - - </table> </td> - </tr> - <table class="tabcont" width="100%" border="0" cellspacing="0" - cellpadding="0"> + <?php + } + ?> + + </table> + </td> + </tr> + <tr> + <td class="listlr"> + <?php echo " <strong><span class='red'>There are {$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" @@ -693,36 +436,23 @@ function popup(url) width="11" height="11"></td> <td nowrap>Rule Disabled</td> </tr> - <table class="tabcont" width="100%" border="0" cellspacing="0" - cellpadding="0"> - <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> - </table> + </tr> <tr> <td colspan="10"> - <p><!--<strong><span class="red">Warning:<br> - </span></strong>Editing these r</p>--> - + <p><!--<strong><span class="red">Warning:<br/> </span></strong>Editing these r</p>--> </td> </tr> </table> - </table> - - </td> - </tr> - + </td> + </tr> + </table> + </td> +</tr> </table> - -</div> - -<?php - -include("fend.inc"); -echo $snort_custom_rnd_box; -?> - -</div> +</form> +<?php include("fend.inc"); ?> </body> </html> |