[VulnWatch] Digital Armaments: Gallery web-based photo gallery remote file execution

From: Digital Armaments (vulnwatch@private)
Date: Thu Feb 16 2006 - 02:34:22 PST


Gallery web-based photo gallery remote file execution

http://www.digitalarmaments.com/2006140293402395.html

I. Background

Gallery is a slick Web-based photo album written using PHP. It is easy to
install, includes a config wizard, and provides users with the ability to
create and maintain their own albums in the album collection via an
intuitive Web interface. Photo management includes automatic thumbnail
creation, image resizing, rotation, ordering, captioning and more. Albums
can have read, write, and caption permissions per individual authenticated
user for an additional level of privacy.
For further information or detail about the software you can refer to the
vendor's homepage:

http://gallery.menalto.com


II. Problem Description

Every user with privileges (who can modify appareance of one Gallery's
album) can include any file located on the server. This vulnerability can
be found in util.php. It allows to an attacker to read files on the remote
system or execute arbitrary PHP code with apache privileges if the
attacker can upload files.

III. Detection

This problem has been detected on latest development and stable version of
gallery 1.5 and on prior version.

IV. Impact analysis

Successful exploitation allow an attacker to execute arbitrary code on the
system with apache privileges.

V. Solution

First notification 12.20.2005.
Second notification 01.14.2006.
The vendor answered second notification.
A new patched version is available.

VI. Credit

Seregorn - seregon@private is credited with this discovery.

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VII. Legal Notices

Copyright © 2006 Digital Armaments LLC.

Redistribution of this alert electronically is allowed. It should not be
edited in any way. Reprint the whole is allowed, partial reprint is not
permitted. For any other request please email
customerservice@private for permission. Disclaimer: The
information in the advisory is believed to be accurate at the time of
publishing based on currently available information. Use of the
information constitutes acceptance for use in an AS IS condition. There
are no warranties with regard to this information. Neither the author nor
the publisher accepts any liability for any direct, indirect, or
consequential loss or damage arising from use of, or reliance on, this
information.



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