aboutsummaryrefslogtreecommitdiffstats
path: root/config/snort
diff options
context:
space:
mode:
authorbmeeks8 <bmeeks8@bellsouth.net>2013-01-29 21:24:52 -0500
committerbmeeks8 <bmeeks8@bellsouth.net>2013-01-29 21:24:52 -0500
commitbe756e02c4ee62f2140ba1e0c635e9de2173be73 (patch)
tree8d0d41a79ab0d9794db5845b5339b876296563ef /config/snort
parentf00a5d563e6e875deea62fdcea56ee0ff3df55fd (diff)
downloadpfsense-packages-be756e02c4ee62f2140ba1e0c635e9de2173be73.tar.gz
pfsense-packages-be756e02c4ee62f2140ba1e0c635e9de2173be73.tar.bz2
pfsense-packages-be756e02c4ee62f2140ba1e0c635e9de2173be73.zip
Add additional config parameters in GUI for pfPortscan preprocessor.
Diffstat (limited to 'config/snort')
-rwxr-xr-xconfig/snort/snort_preprocessors.php98
1 files changed, 88 insertions, 10 deletions
diff --git a/config/snort/snort_preprocessors.php b/config/snort/snort_preprocessors.php
index 916fd413..89f1136c 100755
--- a/config/snort/snort_preprocessors.php
+++ b/config/snort/snort_preprocessors.php
@@ -81,6 +81,9 @@ if ($_POST) {
$natent = array();
$natent = $pconfig;
+ if ($_POST['pscan_ignore_scanners'] && !is_alias($_POST['pscan_ignore_scanners']))
+ $input_errors[] = "Only aliases are allowed";
+
/* if no errors write to conf */
if (!$input_errors) {
/* post new options */
@@ -89,6 +92,12 @@ if ($_POST) {
if ($_POST['max_queued_bytes'] != "") { $natent['max_queued_bytes'] = $_POST['max_queued_bytes']; }else{ $natent['max_queued_bytes'] = ""; }
if ($_POST['max_queued_segs'] != "") { $natent['max_queued_segs'] = $_POST['max_queued_segs']; }else{ $natent['max_queued_segs'] = ""; }
if ($_POST['stream5_mem_cap'] != "") { $natent['stream5_mem_cap'] = $_POST['stream5_mem_cap']; }else{ $natent['stream5_mem_cap'] = ""; }
+ if ($_POST['pscan_sense_level'] != "") { $natent['pscan_sense_level'] = $_POST['pscan_sense_level']; }else{ $natent['pscan_sense_level'] = "medium"; }
+
+ if ($_POST['pscan_ignore_scanners'])
+ $natent['pscan_ignore_scanners'] = $_POST['pscan_ignore_scanners'];
+ else
+ unset($natent['pscan_ignore_scanners']);
$natent['perform_stat'] = $_POST['perform_stat'] ? 'on' : 'off';
$natent['http_inspect'] = $_POST['http_inspect'] ? 'on' : 'off';
@@ -155,6 +164,10 @@ include_once("head.inc");
?>
+<script type="text/javascript" src="/javascript/autosuggest.js">
+</script>
+<script type="text/javascript" src="/javascript/suggestions.js">
+</script>
<form action="snort_preprocessors.php" method="post"
enctype="multipart/form-data" name="iform" id="iform">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
@@ -177,7 +190,7 @@ include_once("head.inc");
<td width="22%" valign="top">&nbsp;</td>
<td width="78%"><span class="vexpl"><span class="red"><strong<?php echo gettext("Note:"); ?>>
</strong></span><br>
- <?php echo gettext("Rules may be dependent on preprocessors!"); ?><br>
+ <?php echo gettext("Rules may be dependent on preprocessors! "); ?>
<?php echo gettext("Defaults will be used when there is no user input."); ?><br></td>
</tr>
<tr>
@@ -298,6 +311,46 @@ include_once("head.inc");
"in RAM. Default value is <strong>8388608</strong> (8 MB)"); ?><br>
</td>
</tr>
+
+ <tr>
+ <td colspan="2" valign="top" class="listtopic"><?php echo gettext("Portscan Settings"); ?></td>
+ </tr>
+ <tr>
+ <td width="22%" valign="top" class="vncell"><?php echo gettext("Enable"); ?> <br>
+ <?php echo gettext("Portscan Detection"); ?></td>
+ <td width="78%" class="vtable"><input name="sf_portscan"
+ type="checkbox" value="on"
+ <?php if ($pconfig['sf_portscan']=="on") echo "checked"; ?>
+ onClick="enable_change(false)"><br>
+ <?php echo gettext("Detects various types of portscans and portsweeps."); ?></td>
+ </tr>
+ <tr>
+ <td width="22%" valign="top" class="vncell"><?php echo gettext("Sensitivity"); ?> </td>
+ <td width="78%" class="vtable">
+ <select name="pscan_sense_level" class="formselect" id="pscan_sense_level">
+ <?php
+ $levels = array('low', 'medium', 'high');
+ foreach ($levels as $val): ?>
+ <option value="<?=$val;?>"
+ <?php if ($val == $pconfig['pscan_sense_level']) echo "selected"; ?>>
+ <?=gettext(ucfirst($val));?></option>
+ <?php endforeach; ?>
+ </select><br>
+ <?php echo gettext("LOW: alerts generated on error packets from the target host; "); ?>
+ <?php echo gettext("this setting should see few false positives. "); ?><br>
+ <?php echo gettext("MEDIUM: tracks connection counts, so will generate filtered alerts; may "); ?>
+ <?php echo gettext("false positive on active hosts."); ?><br>
+ <?php echo gettext("HIGH: tracks hosts using a time window; will catch some slow scans, but is "); ?>
+ <?php echo gettext("very sensitive to active hosts."); ?><br/>
+ </td>
+ </tr>
+ <td width="22%" valign="top" class="vncell"><?php echo gettext("Ignore Scanners"); ?> </td>
+ <td width="78%" class="vtable">
+ <input name="pscan_ignore_scanners" type="text" size="40" autocomplete="off" class="formfldalias" id="pscan_ignore_scanners"
+ value="<?=$pconfig['pscan_ignore_scanners'];?>"> <br><?php echo gettext("Ignores the specified entity as a source of scan alerts. Entity must be a defined alias.");?><br>
+ <?php echo gettext("Default value: \$HOME_NET"); ?><?php echo gettext(" Leave " .
+ "blank for default value."); ?>
+ </td>
<tr>
<td colspan="2" valign="top" class="listtopic"><?php echo gettext("General Preprocessor Settings"); ?></td>
</tr>
@@ -348,15 +401,6 @@ include_once("head.inc");
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?php echo gettext("Enable"); ?> <br>
- <?php echo gettext("Portscan Detection"); ?></td>
- <td width="78%" class="vtable"><input name="sf_portscan"
- type="checkbox" value="on"
- <?php if ($pconfig['sf_portscan']=="on") echo "checked"; ?>
- onClick="enable_change(false)"><br>
- <?php echo gettext("Detects various types of portscans and portsweeps."); ?></td>
- </tr>
- <tr>
- <td width="22%" valign="top" class="vncell"><?php echo gettext("Enable"); ?> <br>
<?php echo gettext("DCE/RPC2 Detection"); ?></td>
<td width="78%" class="vtable"><input name="dce_rpc_2"
type="checkbox" value="on"
@@ -438,6 +482,40 @@ include_once("head.inc");
</table>
</td></tr></table>
</form>
+<script type="text/javascript">
+<?php
+ $isfirst = 0;
+ $aliases = "";
+ $addrisfirst = 0;
+ $portisfirst = 0;
+ $aliasesaddr = "";
+ $aliasesports = "";
+ if(isset($config['aliases']['alias']) && is_array($config['aliases']['alias']))
+ foreach($config['aliases']['alias'] as $alias_name) {
+ if ($alias_name['type'] == "host" || $alias_name['type'] == "network") {
+ if($addrisfirst == 1) $aliasesaddr .= ",";
+ $aliasesaddr .= "'" . $alias_name['name'] . "'";
+ $addrisfirst = 1;
+ } else if ($alias_name['type'] == "port") {
+ if($portisfirst == 1) $aliasesports .= ",";
+ $aliasesports .= "'" . $alias_name['name'] . "'";
+ $portisfirst = 1;
+ }
+ }
+?>
+
+ var addressarray=new Array(<?php echo $aliasesaddr; ?>);
+ var portsarray=new Array(<?php echo $aliasesports; ?>);
+
+function createAutoSuggest() {
+<?php
+ echo "objAlias = new AutoSuggestControl(document.getElementById('pscan_ignore_scanners'), new StateSuggestions(addressarray));\n";
+?>
+}
+
+setTimeout("createAutoSuggest();", 500);
+
+</script>
<?php include("fend.inc"); ?>
</body>
</html>