From 037af6890fe6fdb84a08d3c86083e847c90ec0ad Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Tue, 22 Oct 2013 08:17:26 -0400
Subject: [PATCH] Fix vulnerability in handling _session argument of utils/save-prefs (#1489382)
---
plugins/managesieve/managesieve.php | 144 ++++++++++++++++++++++++++++++++++++++---------
1 files changed, 115 insertions(+), 29 deletions(-)
diff --git a/plugins/managesieve/managesieve.php b/plugins/managesieve/managesieve.php
index ccfc950..4e7fdb6 100644
--- a/plugins/managesieve/managesieve.php
+++ b/plugins/managesieve/managesieve.php
@@ -7,13 +7,13 @@
* It's clickable interface which operates on text scripts and communicates
* with server using managesieve protocol. Adds Filters tab in Settings.
*
- * @version 5.0
+ * @version @package_version@
* @author Aleksander Machniak <alec@alec.pl>
*
* Configuration (see config.inc.php.dist)
*
- * Copyright (C) 2008-2011, The Roundcube Dev Team
- * Copyright (C) 2011, Kolab Systems AG
+ * Copyright (C) 2008-2012, The Roundcube Dev Team
+ * Copyright (C) 2011-2012, Kolab Systems AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
@@ -62,8 +62,9 @@
"x-beenthere",
);
- const VERSION = '5.2';
+ const VERSION = '6.2';
const PROGNAME = 'Roundcube (Managesieve)';
+ const PORT = 4190;
function init()
@@ -199,18 +200,33 @@
$include_path .= ini_get('include_path');
set_include_path($include_path);
- $host = rcube_parse_host($this->rc->config->get('managesieve_host', 'localhost'));
- $port = $this->rc->config->get('managesieve_port', 2000);
+ // Get connection parameters
+ $host = $this->rc->config->get('managesieve_host', 'localhost');
+ $port = $this->rc->config->get('managesieve_port');
+ $tls = $this->rc->config->get('managesieve_usetls', false);
+ $host = rcube_parse_host($host);
$host = rcube_idn_to_ascii($host);
+
+ // remove tls:// prefix, set TLS flag
+ if (($host = preg_replace('|^tls://|i', '', $host, 1, $cnt)) && $cnt) {
+ $tls = true;
+ }
+
+ if (empty($port)) {
+ $port = getservbyname('sieve', 'tcp');
+ if (empty($port)) {
+ $port = self::PORT;
+ }
+ }
$plugin = $this->rc->plugins->exec_hook('managesieve_connect', array(
'user' => $_SESSION['username'],
'password' => $this->rc->decrypt($_SESSION['password']),
'host' => $host,
'port' => $port,
+ 'usetls' => $tls,
'auth_type' => $this->rc->config->get('managesieve_auth_type'),
- 'usetls' => $this->rc->config->get('managesieve_usetls', false),
'disabled' => $this->rc->config->get('managesieve_disabled_extensions'),
'debug' => $this->rc->config->get('managesieve_debug', false),
'auth_cid' => $this->rc->config->get('managesieve_auth_cid'),
@@ -523,9 +539,37 @@
// Init plugin and handle managesieve connection
$error = $this->managesieve_start();
- // filters set add action
- if (!empty($_POST['_newset'])) {
+ // get request size limits (#1488648)
+ $max_post = max(array(
+ ini_get('max_input_vars'),
+ ini_get('suhosin.request.max_vars'),
+ ini_get('suhosin.post.max_vars'),
+ ));
+ $max_depth = max(array(
+ ini_get('suhosin.request.max_array_depth'),
+ ini_get('suhosin.post.max_array_depth'),
+ ));
+ // check request size limit
+ if ($max_post && count($_POST, COUNT_RECURSIVE) >= $max_post) {
+ rcube::raise_error(array(
+ 'code' => 500, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Request size limit exceeded (one of max_input_vars/suhosin.request.max_vars/suhosin.post.max_vars)"
+ ), true, false);
+ $this->rc->output->show_message('managesieve.filtersaveerror', 'error');
+ }
+ // check request depth limits
+ else if ($max_depth && count($_POST['_header']) > $max_depth) {
+ rcube::raise_error(array(
+ 'code' => 500, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Request size limit exceeded (one of suhosin.request.max_array_depth/suhosin.post.max_array_depth)"
+ ), true, false);
+ $this->rc->output->show_message('managesieve.filtersaveerror', 'error');
+ }
+ // filters set add action
+ else if (!empty($_POST['_newset'])) {
$name = get_input_value('_name', RCUBE_INPUT_POST, true);
$copy = get_input_value('_copy', RCUBE_INPUT_POST, true);
$from = get_input_value('_from', RCUBE_INPUT_POST);
@@ -616,6 +660,7 @@
$act_types = get_input_value('_action_type', RCUBE_INPUT_POST, true);
$mailboxes = get_input_value('_action_mailbox', RCUBE_INPUT_POST, true);
$act_targets = get_input_value('_action_target', RCUBE_INPUT_POST, true);
+ $domain_targets = get_input_value('_action_target_domain', RCUBE_INPUT_POST);
$area_targets = get_input_value('_action_target_area', RCUBE_INPUT_POST, true);
$reasons = get_input_value('_action_reason', RCUBE_INPUT_POST, true);
$addresses = get_input_value('_action_addresses', RCUBE_INPUT_POST, true);
@@ -784,14 +829,13 @@
$i = 0;
// actions
foreach($act_types as $idx => $type) {
- $type = $this->strip_value($type);
- $target = $this->strip_value($act_targets[$idx]);
+ $type = $this->strip_value($type);
switch ($type) {
case 'fileinto':
case 'fileinto_copy':
- $mailbox = $this->strip_value($mailboxes[$idx]);
+ $mailbox = $this->strip_value($mailboxes[$idx], false, false);
$this->form['actions'][$i]['target'] = $this->mod_mailbox($mailbox, 'in');
if ($type == 'fileinto_copy') {
$type = 'fileinto';
@@ -810,12 +854,25 @@
case 'redirect':
case 'redirect_copy':
+ $target = $this->strip_value($act_targets[$idx]);
+ $domain = $this->strip_value($domain_targets[$idx]);
+
+ // force one of the configured domains
+ $domains = (array) $this->rc->config->get('managesieve_domains');
+ if (!empty($domains) && !empty($target)) {
+ if (!$domain || !in_array($domain, $domains)) {
+ $domain = $domains[0];
+ }
+
+ $target .= '@' . $domain;
+ }
+
$this->form['actions'][$i]['target'] = $target;
- if ($this->form['actions'][$i]['target'] == '')
+ if ($target == '')
$this->errors['actions'][$i]['target'] = $this->gettext('cannotbeempty');
- else if (!check_email($this->form['actions'][$i]['target']))
- $this->errors['actions'][$i]['target'] = $this->gettext('noemailwarning');
+ else if (!rcube_utils::check_email($target))
+ $this->errors['actions'][$i]['target'] = $this->plugin->gettext(!empty($domains) ? 'forbiddenchars' : 'noemailwarning');
if ($type == 'redirect_copy') {
$type = 'redirect';
@@ -923,7 +980,7 @@
$this->rc->output->command('parent.managesieve_updatelist',
isset($new) ? 'add' : 'update',
array(
- 'name' => Q($this->form['name']),
+ 'name' => $this->form['name'],
'id' => $fid,
'disabled' => $this->form['disabled']
));
@@ -1005,7 +1062,7 @@
foreach ($list as $idx => $set) {
$scripts['S'.$idx] = $set;
$result[] = array(
- 'name' => Q($set),
+ 'name' => $set,
'id' => 'S'.$idx,
'class' => !in_array($set, $this->active) ? 'disabled' : '',
);
@@ -1050,7 +1107,7 @@
$this->rc->output->set_env('blankpage', $attrib['src'] ?
$this->rc->output->abs_url($attrib['src']) : 'program/resources/blank.gif');
- return html::tag('iframe', $attrib);
+ return $this->rc->output->frame($attrib);
}
function filterset_form($attrib)
@@ -1516,11 +1573,34 @@
// actions target inputs
$out .= '<td class="rowtargets">';
- // shared targets
- $out .= '<input type="text" name="_action_target['.$id.']" id="action_target' .$id. '" '
- .'value="' .($action['type']=='redirect' ? Q($action['target'], 'strict', false) : ''). '" size="35" '
- .'style="display:' .($action['type']=='redirect' ? 'inline' : 'none') .'" '
- . $this->error_class($id, 'action', 'target', 'action_target') .' />';
+
+ // force domain selection in redirect email input
+ $domains = (array) $this->rc->config->get('managesieve_domains');
+ if (!empty($domains)) {
+ sort($domains);
+
+ $domain_select = new html_select(array('name' => "_action_target_domain[$id]", 'id' => 'action_target_domain'.$id));
+ $domain_select->add(array_combine($domains, $domains));
+
+ $parts = explode('@', $action['target']);
+
+ if (!empty($parts)) {
+ $action['domain'] = array_pop($parts);
+ $action['target'] = implode('@', $parts);
+ }
+ }
+
+ // redirect target
+ $out .= '<span id="redirect_target' . $id . '" style="white-space:nowrap;'
+ . ' display:' . ($action['type'] == 'redirect' ? 'inline' : 'none') . '">'
+ . '<input type="text" name="_action_target['.$id.']" id="action_target' .$id. '"'
+ . ' value="' .($action['type'] == 'redirect' ? Q($action['target'], 'strict', false) : '') . '"'
+ . (!empty($domains) ? ' size="20"' : ' size="35"')
+ . $this->error_class($id, 'action', 'target', 'action_target') .' />'
+ . (!empty($domains) ? ' @ ' . $domain_select->show($action['domain']) : '')
+ . '</span>';
+
+ // (e)reject target
$out .= '<textarea name="_action_target_area['.$id.']" id="action_target_area' .$id. '" '
.'rows="3" cols="35" '. $this->error_class($id, 'action', 'targetarea', 'action_target_area')
.'style="display:' .(in_array($action['type'], array('reject', 'ereject')) ? 'inline' : 'none') .'">'
@@ -1664,16 +1744,16 @@
private function genid()
{
- $result = preg_replace('/[^0-9]/', '', microtime(true));
- return $result;
+ return preg_replace('/[^0-9]/', '', microtime(true));
}
- private function strip_value($str, $allow_html=false)
+ private function strip_value($str, $allow_html = false, $trim = true)
{
- if (!$allow_html)
+ if (!$allow_html) {
$str = strip_tags($str);
+ }
- return trim($str);
+ return $trim ? trim($str) : $str;
}
private function error_class($id, $type, $target, $elem_prefix='')
@@ -1803,6 +1883,12 @@
// Get active script name
if ($active = $this->sieve->get_active()) {
$this->active = array($active);
+ }
+
+ // Hide scripts from config
+ $exceptions = $this->rc->config->get('managesieve_filename_exceptions');
+ if (!empty($exceptions)) {
+ $this->list = array_diff($this->list, (array)$exceptions);
}
}
@@ -1989,7 +2075,7 @@
$fname = $filter['name'] ? $filter['name'] : "#$i";
$result[] = array(
'id' => $idx,
- 'name' => Q($fname),
+ 'name' => $fname,
'class' => $filter['disabled'] ? 'disabled' : '',
);
$i++;
--
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