Title: iManager Plugin v1.2.8 (d) Remote Arbitrary File Deletion Vulnerability
Advisory ID: ZSL-2011-5043
Type: Local/Remote
Impact: Manipulation of Data
Risk: (3/5)
Release Date: 16.09.2011

Summary

With iManager you can manage your files/images on your webserver, and it provides user interface to most of the phpThumb() functions. It works either stand-alone or as a plugin to WYSIWYG editors like tinyMCE, SPAW, htmlAREA, Xinha and FCKeditor.

Description

Input passed to the 'd' parameter in /scripts/phpCrop/crop.php is not properly sanitised before being used to delete files. This can be exploited to delete files with the permissions of the web server via directory traversal sequences passed within the 'd' parameter.

--------------------------------------------------------------------------------

/scripts/phpCrop/crop.php
----------------
32: if( isset($_REQUEST['s']) ) {
33: //delete previous temp files
34: $matches = glob($d . '{*.jpg,*.JPG}', GLOB_BRACE);
35: if ( is_array ( $matches ) ) {
36: foreach ( $matches as $fn) {
37: @unlink($fn);
38: }
39: }

--------------------------------------------------------------------------------

Vendor

net4visions.com - http://www.net4visions.com

Affected Version

<= 1.2.8 Build 02012008

Tested On

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

Vendor Status

N/A

PoC

imanager_del.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] http://www.securityfocus.com/bid/49662
[2] http://www.exploit-db.com/exploits/17852/
[3] http://packetstormsecurity.org/files/105193
[4] http://secunia.com/advisories/46063/
[5] http://www.securelist.com/en/advisories/46063
[6] http://www.net-security.org/secworld.php?id=11649
[7] http://1337day.com/exploits/16930
[8] http://securityreason.com/wlb_show/WLB-2011090090
[9] http://xforce.iss.net/xforce/xfdb/69919
[10] http://osvdb.org/show/osvdb/75602

Changelog

[16.09.2011] - Initial release
[17.09.2011] - Added reference [1] and [2]
[18.09.2011] - Added reference [3]
[19.09.2011] - Added reference [4]
[20.09.2011] - Added reference [5], [6], [7] and [8]
[22.09.2011] - Added reference [9] and [10]

Contact

Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk