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@bughunter.net is credited with this discovery.
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