Fix bugs where CSRF attacks were still possible on some requests

8 files changed, 43 insertions, 26 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 8fcb2014e..370ab1a3e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -18,6 +18,7 @@ CHANGELOG Roundcube Webmail
 - Fix possible issues in skin/skin_path config handling (#1490125)
 - Fix lack of delimiter for recipient addresses in smtp_log (#1490150)
 - Fix generation of Blowfish-based password hashes (#1490184)
+- Fix bugs where CSRF attacks were still possible on some requests
 
 RELEASE 1.0.3
 -------------
diff --git a/index.php b/index.php
index 082f11ea4..a3f54bb27 100644
--- a/index.php
+++ b/index.php
@@ -172,6 +172,7 @@ if ($RCMAIL->task == 'login' && $RCMAIL->action == 'login') {
 
 // end session (after optional referer check)
 else if ($RCMAIL->task == 'logout' && isset($_SESSION['user_id'])
+    && $RCMAIL->check_request(rcube_utils::INPUT_GET)
     && (!$RCMAIL->config->get('referer_check') || rcube_utils::check_referer())
 ) {
     $userdata = array(
diff --git a/plugins/acl/acl.js b/plugins/acl/acl.js
index acea60a4c..795a35a6f 100644
--- a/plugins/acl/acl.js
+++ b/plugins/acl/acl.js
@@ -62,8 +62,11 @@ rcube_webmail.prototype.acl_delete = function()
     var users = this.acl_get_usernames();
 
     if (users && users.length && confirm(this.get_label('acl.deleteconfirm'))) {
-        this.http_request('settings/plugin.acl', '_act=delete&_user='+urlencode(users.join(','))
-            + '&_mbox='+urlencode(this.env.mailbox),
+        this.http_post('settings/plugin.acl', {
+                _act: 'delete',
+                _user: users.join(','),
+                _mbox: this.env.mailbox
+            },
             this.set_busy(true, 'acl.deleting'));
     }
 }
@@ -71,7 +74,7 @@ rcube_webmail.prototype.acl_delete = function()
 // Save ACL data
 rcube_webmail.prototype.acl_save = function()
 {
-    var user = $('#acluser', this.acl_form).val(), rights = '', type;
+    var data, type, rights = '', user = $('#acluser', this.acl_form).val();
 
     $((this.env.acl_advanced ? '#advancedrights :checkbox' : '#simplerights :checkbox'), this.acl_form).map(function() {
         if (this.checked)
@@ -92,12 +95,18 @@ rcube_webmail.prototype.acl_save = function()
         return;
     }
 
-    this.http_request('settings/plugin.acl', '_act=save'
-        + '&_user='+urlencode(user)
-        + '&_acl=' +rights
-        + '&_mbox='+urlencode(this.env.mailbox)
-        + (this.acl_id ? '&_old='+this.acl_id : ''),
-        this.set_busy(true, 'acl.saving'));
+    data = {
+        _act: 'save',
+        _user: user,
+        _acl: rights,
+        _mbox: this.env.mailbox
+    }
+
+    if (this.acl_id) {
+        data._old = this.acl_id;
+    }
+
+    this.http_post('settings/plugin.acl', data, this.set_busy(true, 'acl.saving'));
 }
 
 // Cancel/Hide form
diff --git a/plugins/acl/acl.php b/plugins/acl/acl.php
index a8b8f58ad..b440c24a1 100644
--- a/plugins/acl/acl.php
+++ b/plugins/acl/acl.php
@@ -443,10 +443,10 @@ class acl extends rcube_plugin
      */
     private function action_save()
     {
-        $mbox  = trim(rcube_utils::get_input_value('_mbox', rcube_utils::INPUT_GPC, true)); // UTF7-IMAP
-        $user  = trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_GPC));
-        $acl   = trim(rcube_utils::get_input_value('_acl', rcube_utils::INPUT_GPC));
-        $oldid = trim(rcube_utils::get_input_value('_old', rcube_utils::INPUT_GPC));
+        $mbox  = trim(rcube_utils::get_input_value('_mbox', rcube_utils::INPUT_POST, true)); // UTF7-IMAP
+        $user  = trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST));
+        $acl   = trim(rcube_utils::get_input_value('_acl', rcube_utils::INPUT_POST));
+        $oldid = trim(rcube_utils::get_input_value('_old', rcube_utils::INPUT_POST));
 
         $acl    = array_intersect(str_split($acl), $this->rights_supported());
         $users  = $oldid ? array($user) : explode(',', $user);
@@ -499,8 +499,8 @@ class acl extends rcube_plugin
      */
     private function action_delete()
     {
-        $mbox = trim(rcube_utils::get_input_value('_mbox', rcube_utils::INPUT_GPC, true)); //UTF7-IMAP
-        $user = trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_GPC));
+        $mbox = trim(rcube_utils::get_input_value('_mbox', rcube_utils::INPUT_POST, true)); //UTF7-IMAP
+        $user = trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST));
 
         $user = explode(',', $user);
 
diff --git a/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php b/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php
index a93e389b9..7d7ea99d3 100644
--- a/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php
+++ b/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php
@@ -310,7 +310,7 @@ class rcube_sieve_engine
                 }
             }
             else if ($action == 'setact' && !$error) {
-                $script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_GPC, true);
+                $script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_POST, true);
                 $result = $this->activate_script($script_name);
                 $kep14  = $this->rc->config->get('managesieve_kolab_master');
 
@@ -324,7 +324,7 @@ class rcube_sieve_engine
                 }
             }
             else if ($action == 'deact' && !$error) {
-                $script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_GPC, true);
+                $script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_POST, true);
                 $result = $this->deactivate_script($script_name);
 
                 if ($result === true) {
@@ -337,7 +337,7 @@ class rcube_sieve_engine
                 }
             }
             else if ($action == 'setdel' && !$error) {
-                $script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_GPC, true);
+                $script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_POST, true);
                 $result = $this->remove_script($script_name);
 
                 if ($result === true) {
@@ -381,14 +381,14 @@ class rcube_sieve_engine
                 $this->rc->output->command('managesieve_updatelist', 'list', array('list' => $result));
             }
             else if ($action == 'ruleadd') {
-                $rid = rcube_utils::get_input_value('_rid', rcube_utils::INPUT_GPC);
+                $rid = rcube_utils::get_input_value('_rid', rcube_utils::INPUT_POST);
                 $id = $this->genid();
                 $content = $this->rule_div($fid, $id, false);
 
                 $this->rc->output->command('managesieve_rulefill', $content, $id, $rid);
             }
             else if ($action == 'actionadd') {
-                $aid = rcube_utils::get_input_value('_aid', rcube_utils::INPUT_GPC);
+                $aid = rcube_utils::get_input_value('_aid', rcube_utils::INPUT_POST);
                 $id = $this->genid();
                 $content = $this->action_div($fid, $id, false);
 
diff --git a/program/js/app.js b/program/js/app.js
index fe9daddc8..7859ecbea 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -1336,8 +1336,10 @@ function rcube_webmail()
     var url = this.get_task_url(task);
     if (task == 'mail')
       url += '&_mbox=INBOX';
-    else if (task == 'logout' && !this.env.server_error)
+    else if (task == 'logout' && !this.env.server_error) {
+      url += '&_token=' + this.env.request_token;
       this.clear_compose_data();
+    }
 
     this.redirect(url);
   };
@@ -1347,7 +1349,10 @@ function rcube_webmail()
     if (!url)
       url = this.env.comm_path;
 
-    return url.replace(/_task=[a-z0-9_-]+/i, '_task='+task);
+    if (url.match(/[?&]_task=[a-zA-Z0-9_-]+/))
+        return url.replace(/_task=[a-zA-Z0-9_-]+/, '_task=' + task);
+    else
+        return url.replace(/\?.*$/, '') + '?_task=' + task;
   };
 
   this.reload = function(delay)
diff --git a/program/steps/addressbook/delete.inc b/program/steps/addressbook/delete.inc
index f5b8e4eb5..9a23c59bb 100644
--- a/program/steps/addressbook/delete.inc
+++ b/program/steps/addressbook/delete.inc
@@ -20,10 +20,11 @@
 */
 
 // process ajax requests only
-if (!$OUTPUT->ajax_call)
+if (!$OUTPUT->ajax_call) {
     return;
+}
 
-$cids   = rcmail_get_cids();
+$cids   = rcmail_get_cids(null, rcube_utils::INPUT_POST);
 $delcnt = 0;
 
 // remove previous deletes
diff --git a/program/steps/addressbook/func.inc b/program/steps/addressbook/func.inc
index 2989dada2..625e044a4 100644
--- a/program/steps/addressbook/func.inc
+++ b/program/steps/addressbook/func.inc
@@ -879,13 +879,13 @@ function rcmail_search_update($return = false)
  *
  * @return array List of contact IDs per-source
  */
-function rcmail_get_cids($filter = null)
+function rcmail_get_cids($filter = null, $request_type = rcube_utils::INPUT_GPC)
 {
     // contact ID (or comma-separated list of IDs) is provided in two
     // forms. If _source is an empty string then the ID is a string
     // containing contact ID and source name in form: <ID>-<SOURCE>
 
-    $cid    = rcube_utils::get_input_value('_cid', rcube_utils::INPUT_GPC);
+    $cid    = rcube_utils::get_input_value('_cid', $request_type);
     $source = (string) rcube_utils::get_input_value('_source', rcube_utils::INPUT_GPC);
 
     if (is_array($cid)) {