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-rwxr-xr-xconfig/snort/snort_alerts.php135
1 files changed, 124 insertions, 11 deletions
diff --git a/config/snort/snort_alerts.php b/config/snort/snort_alerts.php
index 8c42fa89..f8e4ba7c 100755
--- a/config/snort/snort_alerts.php
+++ b/config/snort/snort_alerts.php
@@ -40,6 +40,24 @@ require_once("/usr/local/pkg/snort/snort.inc");
$snortalertlogt = $config['installedpackages']['snortglobal']['snortalertlogtype'];
$supplist = array();
+function snort_is_alert_globally_suppressed($list, $gid, $sid) {
+
+ /************************************************/
+ /* Checks the passed $gid:$sid to see if it has */
+ /* been globally suppressed. If true, then any */
+ /* "track by_src" or "track by_dst" options are */
+ /* disabled since they are overridden by the */
+ /* global suppression of the $gid:$sid. */
+ /************************************************/
+
+ if (is_array($list[$gid][$sid]))
+ return false;
+ elseif (!isset($list[$gid][$sid]))
+ return false;
+ else
+ return true;
+}
+
if ($_GET['instance'])
$instanceid = $_GET['instance'];
if ($_POST['instance'])
@@ -97,7 +115,9 @@ if ($_GET['act'] == "addsuppress" && is_numeric($_GET['sidid']) && is_numeric($_
if (!is_array($config['installedpackages']['snortglobal']['suppress']['item']))
$config['installedpackages']['snortglobal']['suppress']['item'] = array();
$a_suppress = &$config['installedpackages']['snortglobal']['suppress']['item'];
+ $found_list = false;
+ /* If no Suppress List is set for the interface, then create one with the interface name */
if (empty($a_instance[$instanceid]['suppresslistname']) || $a_instance[$instanceid]['suppresslistname'] == 'default') {
$s_list = array();
$s_list['name'] = $a_instance[$instanceid]['interface'] . "suppress";
@@ -106,9 +126,12 @@ if ($_GET['act'] == "addsuppress" && is_numeric($_GET['sidid']) && is_numeric($_
$s_list['suppresspassthru'] = base64_encode($suppress);
$a_suppress[] = $s_list;
$a_instance[$instanceid]['suppresslistname'] = $s_list['name'];
+ $found_list = true;
} else {
+ /* If we get here, a Suppress List is defined for the interface so see if we can find it */
foreach ($a_suppress as $a_id => $alist) {
if ($alist['name'] == $a_instance[$instanceid]['suppresslistname']) {
+ $found_list = true;
if (!empty($alist['suppresspassthru'])) {
$tmplist = base64_decode($alist['suppresspassthru']);
$tmplist .= "\n{$suppress}";
@@ -118,9 +141,76 @@ if ($_GET['act'] == "addsuppress" && is_numeric($_GET['sidid']) && is_numeric($_
}
}
}
- $savemsg = "An entry for 'suppress gen_id {$_GET['gen_id']}, sig_id {$_GET['sidid']}' has been added to the Suppress List.";
- write_config();
- sync_snort_package_config();
+
+ if ($found_list) {
+ $savemsg = "An entry for 'suppress gen_id {$_GET['gen_id']}, sig_id {$_GET['sidid']}' has been added to the Suppress List.";
+ write_config();
+ sync_snort_package_config();
+ snort_reload_config($a_instance[$instanceid]);
+ }
+ else {
+ /* We did not find the defined list, so notify the user with an error */
+ $input_errors[] = gettext("Suppress List '{$a_instance[$instanceid]['suppresslistname']}' is defined for this interface, but it could not be found!");
+ }
+}
+
+if (($_GET['act'] == "addsuppress_srcip" || $_GET['act'] == "addsuppress_dstip") && is_numeric($_GET['sidid']) && is_numeric($_GET['gen_id'])) {
+ if ($_GET['act'] == "addsuppress_srcip")
+ $method = "by_src";
+ else
+ $method = "by_dst";
+ if (is_ipaddr($_GET['ip']) || is_ipaddrv6($_GET['ip'])) {
+ if (empty($_GET['descr']))
+ $suppress = "suppress gen_id {$_GET['gen_id']}, sig_id {$_GET['sidid']}, track {$method}, ip {$_GET['ip']}\n";
+ else
+ $suppress = "#{$_GET['descr']}\nsuppress gen_id {$_GET['gen_id']}, sig_id {$_GET['sidid']}, track {$method}, ip {$_GET['ip']}\n";
+ }
+ else {
+ header("Location: /snort/snort_alerts.php?instance={$instanceid}");
+ exit;
+ }
+
+ /* Save the new Suppress entry to the list */
+ if (!is_array($config['installedpackages']['snortglobal']['suppress']))
+ $config['installedpackages']['snortglobal']['suppress'] = array();
+ if (!is_array($config['installedpackages']['snortglobal']['suppress']['item']))
+ $config['installedpackages']['snortglobal']['suppress']['item'] = array();
+ $a_suppress = &$config['installedpackages']['snortglobal']['suppress']['item'];
+ $found_list = false;
+
+ if (empty($a_instance[$instanceid]['suppresslistname']) || $a_instance[$instanceid]['suppresslistname'] == 'default') {
+ $s_list = array();
+ $s_list['name'] = $a_instance[$instanceid]['interface'] . "suppress";
+ $s_list['uuid'] = uniqid();
+ $s_list['descr'] = "Auto-generated list for suppress";
+ $s_list['suppresspassthru'] = base64_encode($suppress);
+ $a_suppress[] = $s_list;
+ $a_instance[$instanceid]['suppresslistname'] = $s_list['name'];
+ $found_list = true;
+ } else {
+ foreach ($a_suppress as $a_id => $alist) {
+ if ($alist['name'] == $a_instance[$instanceid]['suppresslistname']) {
+ $found_list = true;
+ if (!empty($alist['suppresspassthru'])) {
+ $tmplist = base64_decode($alist['suppresspassthru']);
+ $tmplist .= "\n{$suppress}";
+ $alist['suppresspassthru'] = base64_encode($tmplist);
+ $a_suppress[$a_id] = $alist;
+ }
+ }
+ }
+ }
+
+ if ($found_list) {
+ $savemsg = "An entry for 'suppress gen_id {$_GET['gen_id']}, sig_id {$_GET['sidid']}, track {$method}, ip {$_GET['ip']}' has been added to the Suppress List.";
+ write_config();
+ sync_snort_package_config();
+ snort_reload_config($a_instance[$instanceid]);
+ }
+ else {
+ /* We did not find the defined list, so notify the user with an error */
+ $input_errors[] = gettext("Suppress List '{$a_instance[$instanceid]['suppresslistname']}' is defined for this interface, but it could not be found!");
+ }
}
if ($_GET['action'] == "clear" || $_POST['delete']) {
@@ -162,7 +252,7 @@ if ($_POST['download']) {
}
/* Load up an array with the current Suppression List GID,SID values */
-$supplist = snort_load_suppress_sigs($a_instance[$instanceid]);
+$supplist = snort_load_suppress_sigs($a_instance[$instanceid], true);
$pgtitle = "Services: Snort: Snort Alerts";
include_once("head.inc");
@@ -265,6 +355,7 @@ if ($pconfig['arefresh'] == 'on')
<col axis="string">
</colgroup>
<thead>
+ <tr>
<th class="listhdrr" axis="date"><?php echo gettext("DATE"); ?></th>
<th class="listhdrr" axis="number"><?php echo gettext("PRI"); ?></th>
<th class="listhdrr" axis="string"><?php echo gettext("PROTO"); ?></th>
@@ -275,6 +366,7 @@ if ($pconfig['arefresh'] == 'on')
<th class="listhdrr" axis="string"><?php echo gettext("DPORT"); ?></th>
<th class="listhdrr" axis="number"><?php echo gettext("SID"); ?></th>
<th class="listhdrr" axis="string"><?php echo gettext("DESCRIPTION"); ?></th>
+ </tr>
</thead>
<tbody>
<?php
@@ -307,9 +399,19 @@ if (file_exists("/var/log/snort/snort_{$if_real}{$snort_uuid}/alert")) {
$alert_ip_src = $fields[6];
/* Add zero-width space as soft-break opportunity after each colon if we have an IPv6 address */
$alert_ip_src = str_replace(":", ":&#8203;", $alert_ip_src);
+ if (!snort_is_alert_globally_suppressed($supplist, $fields[1], $fields[2]) &&
+ !isset($supplist[$fields[1]][$fields[2]]['by_src'][$fields[6]])) {
+ $alert_ip_src .= "<br/><a href='?instance={$instanceid}&act=addsuppress_srcip&sidid={$fields[2]}&gen_id={$fields[1]}&descr={$alert_descr_url}&ip=" . trim(urlencode($fields[6])) . "'>";
+ $alert_ip_src .= "<img src='../themes/{$g['theme']}/images/icons/icon_plus.gif' width='12' height='12' border='0' ";
+ $alert_ip_src .= "title='" . gettext("Add this gen_id:sig_id track by_src IP to Suppress List") . "'></a>";
+ }
+ elseif (isset($supplist[$fields[1]][$fields[2]]['by_src'][$fields[6]])) {
+ $alert_ip_src .= "<br/><img src='../themes/{$g['theme']}/images/icons/icon_plus_d.gif' width='12' height='12' border='0' ";
+ $alert_ip_src .= "title='" . gettext("This gen_id:sig_id track by_src IP already in Suppress List") . "'/>";
+ }
if (isset($tmpblocked[$fields[6]])) {
- $alert_ip_src .= "<br/><a href='?instance={$id}&todelete=" . trim(urlencode($fields[6])) . "'>
- <img title=\"" . gettext("Remove host from Blocked Table") . "\" border=\"0\" width='10' height='10' name='todelete' id='todelete' alt=\"Remove from Blocked Hosts\" src=\"../themes/{$g['theme']}/images/icons/icon_x.gif\"/></a>";
+ $alert_ip_src .= "&nbsp;&nbsp;<a href='?instance={$id}&todelete=" . trim(urlencode($fields[6])) . "'>
+ <img title=\"" . gettext("Remove host from Blocked Table") . "\" border=\"0\" width='12' height='12' name='todelete' id='todelete' alt=\"Remove from Blocked Hosts\" src=\"../themes/{$g['theme']}/images/icons/icon_x.gif\"/></a>";
}
/* IP SRC Port */
$alert_src_p = $fields[7];
@@ -317,21 +419,31 @@ if (file_exists("/var/log/snort/snort_{$if_real}{$snort_uuid}/alert")) {
$alert_ip_dst = $fields[8];
/* Add zero-width space as soft-break opportunity after each colon if we have an IPv6 address */
$alert_ip_dst = str_replace(":", ":&#8203;", $alert_ip_dst);
+ if (!snort_is_alert_globally_suppressed($supplist, $fields[1], $fields[2]) &&
+ !isset($supplist[$fields[1]][$fields[2]]['by_dst'][$fields[8]])) {
+ $alert_ip_dst .= "<br/><a href='?instance={$instanceid}&act=addsuppress_dstip&sidid={$fields[2]}&gen_id={$fields[1]}&descr={$alert_descr_url}&ip=" . trim(urlencode($fields[8])) . "'>";
+ $alert_ip_dst .= "<img src='../themes/{$g['theme']}/images/icons/icon_plus.gif' width='12' height='12' border='0' ";
+ $alert_ip_dst .= "title='" . gettext("Add this gen_id:sig_id track by_dst IP to Suppress List") . "'></a>";
+ }
+ elseif (isset($supplist[$fields[1]][$fields[2]]['by_dst'][$fields[8]])) {
+ $alert_ip_dst .= "<br/><img src='../themes/{$g['theme']}/images/icons/icon_plus_d.gif' width='12' height='12' border='0' ";
+ $alert_ip_dst .= "title='" . gettext("This gen_id:sig_id track by_dst IP already in Suppress List") . "'/>";
+ }
if (isset($tmpblocked[$fields[8]])) {
- $alert_ip_dst .= "<br/><a href='?instance={$id}&todelete=" . trim(urlencode($fields[8])) . "'>
- <img title=\"" . gettext("Remove host from Blocked Table") . "\" border=\"0\" width='10' height='10' name='todelete' id='todelete' alt=\"Remove from Blocked Hosts\" src=\"../themes/{$g['theme']}/images/icons/icon_x.gif\"/></a>";
+ $alert_ip_dst .= "&nbsp;&nbsp;<a href='?instance={$id}&todelete=" . trim(urlencode($fields[8])) . "'>
+ <img title=\"" . gettext("Remove host from Blocked Table") . "\" border=\"0\" width='12' height='12' name='todelete' id='todelete' alt=\"Remove from Blocked Hosts\" src=\"../themes/{$g['theme']}/images/icons/icon_x.gif\"/></a>";
}
/* IP DST Port */
$alert_dst_p = $fields[9];
/* SID */
$alert_sid_str = "{$fields[1]}:{$fields[2]}";
- if (!isset($supplist[$fields[1]][$fields[2]])) {
+ if (!snort_is_alert_globally_suppressed($supplist, $fields[1], $fields[2])) {
$sidsupplink = "<a href='?instance={$instanceid}&act=addsuppress&sidid={$fields[2]}&gen_id={$fields[1]}&descr={$alert_descr_url}'>";
- $sidsupplink .= "<img src='../themes/{$g['theme']}/images/icons/icon_plus.gif' width='10' height='10' border='0' ";
+ $sidsupplink .= "<img src='../themes/{$g['theme']}/images/icons/icon_plus.gif' width='12' height='12' border='0' ";
$sidsupplink .= "title='" . gettext("Add this gen_id:sig_id to Suppress List") . "'></a>";
}
else {
- $sidsupplink = "<img src='../themes/{$g['theme']}/images/icons/icon_plus_d.gif' width='10' height='10' border='0' ";
+ $sidsupplink = "<img src='../themes/{$g['theme']}/images/icons/icon_plus_d.gif' width='12' height='12' border='0' ";
$sidsupplink .= "title='" . gettext("This gen_id:sig_id already in Suppress List") . "'/>";
}
$alert_class = $fields[11];
@@ -368,5 +480,6 @@ if (file_exists("/var/log/snort/snort_{$if_real}{$snort_uuid}/alert")) {
<?php
include("fend.inc");
?>
+
</body>
</html>