[MajorSecurity Advisory #44]MailBee WebMail Pro - Cross Site Scripting Issue Apr 13 2007 02:05PM
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[MajorSecurity Advisory #44]MailBee WebMail Pro - Cross Site Scripting Issue

Details
=======
Product: MailBee WebMail Pro 3.4
Security-Risk: moderated
Remote-Exploit: yes
Vendor-URL: http://www.afterlogic.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_rls44

Introduction
============
"MailBee WebMail Pro is a web based mail client built as a set of ASP scripts." [from http://www.afterlogic.com]

More Details
============
Cross Site Scripting:
Input passed directly to the "username" parameter in "check_login.asp" 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.

Example:
/check_login.asp?email=>"><script>alert(15031988)</script>

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

History/Timeline
================
05.04.2007 discovery of the vulnerability
06.04.2007 additional tests with other versions
08.04.2007 contacted the vendor
09.04.2007 vendor confirmed the bugs
13.04.2007 advisory is written
13.04.2007 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/

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