From 395b74051ce974ced8a5abe378f66e9bcf0c8e34 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Wed, 27 Mar 2013 12:02:55 -0400
Subject: [PATCH] Whitelist configuration options (user preferences) that can be changed using save-pref command

---
 program/steps/utils/save_pref.inc |   22 +++++++++++++++++-----
 1 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/program/steps/utils/save_pref.inc b/program/steps/utils/save_pref.inc
index 616d13b..0bc731a 100644
--- a/program/steps/utils/save_pref.inc
+++ b/program/steps/utils/save_pref.inc
@@ -5,7 +5,7 @@
  | program/steps/utils/save_pref.inc                                     |
  |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2005-2010, The Roundcube Dev Team                       |
+ | Copyright (C) 2005-2013, The Roundcube Dev Team                       |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -14,13 +14,26 @@
  +-----------------------------------------------------------------------+
  | Author: Aleksander Machniak <alec@alec.pl>                            |
  +-----------------------------------------------------------------------+
-
- $Id$
-
 */
 
 $name = get_input_value('_name', RCUBE_INPUT_POST);
 $value = get_input_value('_value', RCUBE_INPUT_POST);
+$whitelist = array(
+    'preview_pane',
+    'list_cols',
+    'collapsed_folders',
+    'collapsed_abooks',
+);
+
+if (!in_array($name, array_merge($whitelist, $RCMAIL->plugins->allowed_prefs))) {
+    raise_error(array('code' => 500, 'type' => 'php',
+        'file' => __FILE__, 'line' => __LINE__,
+        'message' => sprintf("Hack attempt detected (user: %s)", $_SESSION['username'])),
+        true, false);
+
+    $OUTPUT->reset();
+    $OUTPUT->send();
+}
 
 // save preference value
 $RCMAIL->user->save_prefs(array($name => $value));
@@ -41,5 +54,4 @@
 
 $OUTPUT->reset();
 $OUTPUT->send();
-
 

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