bugtraq - Secunia Research: SqWebMail HTML Emails Script Insertion Vulnerability

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Date: Mon, 29 Aug 2005 12:33:59 +0200
From: Secunia Research <vuln@...unia.com>
To: full-disclosure@...ts.grok.org.uk
Cc: bugtraq@...urityfocus.com
Subject: Secunia Research: SqWebMail HTML Emails Script
	Insertion Vulnerability

====================================================================== 

                     Secunia Research 29/08/2005

       - SqWebMail HTML Emails Script Insertion Vulnerability -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9

====================================================================== 
1) Affected Software 

SqWebMail 5.0.4

Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Moderately Critical
Impact: Script Insertion
Where:  From Remote

====================================================================== 
3) Description of Vulnerability

Secunia Research has discovered a vulnerability in SqWebMail, which
can be exploited by malicious people to conduct script insertion
attacks.

The vulnerability is caused due to SqWebMail failing to properly
sanitise HTML emails. This can be exploited to include arbitrary
script code in HTML emails, which will be executed in context of the
SqWebMail server, as soon as the user views a received email.

Example:
<img src="cid:>" onError="alert(document.domain);">

Successful exploitation allows execution of arbitrary script code
and makes it possible for a malicious person to perform the same
actions as the user of the webmail account (e.g. sending or viewing
emails).

====================================================================== 
4) Solution 

The vendor has issued an updated version of SqWebMail, which fixes
this vulnerability.

http://www.courier-mta.org/?download.php

====================================================================== 
5) Time Table 

26/08/2005 - Initial vendor notification.
26/08/2005 - Vendor confirms vulnerability and releases a fix.
29/08/2005 - Public disclosure.

====================================================================== 
6) Credits 

Discovered by Jakob Balle, Secunia Research.

====================================================================== 
7) References

No references available.

====================================================================== 
8) About Secunia 

Secunia collects, validates, assesses, and writes advisories regarding 
all the latest software vulnerabilities disclosed to the public. These 
advisories are gathered in a publicly available database at the 
Secunia website: 

http://secunia.com/

Secunia offers services to our customers enabling them to receive all 
relevant vulnerability information to their specific system 
configuration. 

Secunia offers a FREE mailing list called Secunia Security Advisories: 

http://secunia.com/secunia_security_advisories/

====================================================================== 
9) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2005-39/advisory/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================

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