OSEC

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Serious Vulnerabilities In PhotoPost ReviewPost

From: GulfTech Security (securitygulftech.org)
Date: Mon Jan 03 2005 - 17:06:59 CST


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# GulfTech Security Research January 02, 2005
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# Vendor : All Enthusiast, Inc.
# URL : http://www.reviewpost.com/
# Version : ReviewPost PHP Pro All Versions
# Risk : Multiple Vulnerabilities
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Description:
Your community of users represents a wealth of knowledge. Now
your users can help build and maintain your site by writing
reviews of any product imaginable. With ReviewPost, you will
quickly amass a valuable collection of user opinions about
products that relate to your site. ReviewPost can even use
your existing forum login system (if you have one) to keep your
users from having to register twice, and makes an excellent
companion to ReviewPost. Where you see [INT] in this advisory,
it represents an integer such as a valid category. [XSS] and
[SQL] represent where an attacker could insert code to conduct
a cross site scripting attack, or inject data to influence SQL
queries.

Cross Site Scripting:
ReviewPost is prone to cross site scripting in several
different scripts throughout the application.

http://path/showcat.php?si=[XSS]
http://path/showproduct.php?product=[INT]&sort=[INT]&cat=[INT][XSS]
http://path/showproduct.php?product=[INT]&sort=[INT]&cat=[INT]&page=[INT][XS
S]
http://path/reportproduct.php?report=[INT][XSS]

This can be used to render hostile code in the context of the
victims browser, or to steal cookie based credentials or other
sensitive info.

SQL Injection Vulnerabilities:
There are a couple of SQL Injection vulnerabilities in ReviewPost.
Some are easy to exploit, others are not so easy. Examples are below:

http://path/showcat.php?cat=[INT][SQL]
http://path/addfav.php?product=[INT][SQL]&do=add

These SQL issues can possibly be exploited to influence SQL queries
and disclose arbitrary data. These will alse cause XSS if unsuccessful.

Arbitrary File Upload:
This issue can be very dangerous as it allows a user to upload php
scripts and other files. Once uploaded these files can be executed
with the permission of the webserver. The uploaded file can be
found by following the image link in the Review that was posted.
Exploiting this vulnerability can be accomplished by naming a file with
multiple file extensions and then uploading it when posting a review
(for example: test.jpg.php.jpg.php). It should be noted that the uploads
are properly filtered (or seem to be) when editing a review, just not when
creating a new Review.

Solution:
ReviewPost 2.84 has been released to address these issues. Users should
upgrade their installation as soon as possible.

Related Info:
The original advisory can be found at the following location
http://www.gulftech.org/?node=research&article_id=00062-01022005

Credits:
James Bercegay of the GulfTech Security Research Team

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