[MajorSecurity Advisory #45]oe2edit CMS - Cross Site Scripting and Cookie Manipulation Issue

Details

Product: oe2edit CMS
Security-Risk: moderated
Remote-Exploit: yes
Vendor-URL: http://www.oe2edit.com
Vendor-Status: informed
Advisory-Status: published

Credits

Discovered by: David Vieira-Kurz
http://www.majorsecurity.de

Original Advisory:

http://www.majorsecurity.de/index_2.php?major_rls=major_rls45

Introduction

oe2edit is a German Content Management System.

More Details

Cross Site Scripting:
Input passed directly to the "q" parameter in "oe2edit.cgi" is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

Cookie Manipulation:
Input passed directly to the "q" parameter in "oe2edit.cgi" is not properly sanitised before being returned to the user.
This can be exploited to inject custom META tags to alter the cookies stored in the browser, set custom cookies and to modify the cookie information.

Workaround

Edit the source code to ensure that input is properly sanitised.
You should work with "htmlspecialchars()" or "htmlentities()" php-function to ensure that html tags
are not going to be executed.

Example:
$q = htmlspecialchars($_POST['q']);
$test = htmlentities($_GET['test']);
?>

History/Timeline

07.04.2007 discovery of the vulnerability
08.04.2007 additional tests with other versions
09.04.2007 contacted the vendor
15.04.2007 advisory is written
15.04.2007 advisory released

MajorSecurity

MajorSecurity is a non-profit German penetration testing and security research project
which consists of only one person at the present time.
http://www.majorsecurity.de/