[UNIX] kmMail Cross Site Scripting

From: support@securiteam.com
Date: 10/21/02 

From: support@securiteam.com
To: list@securiteam.com
Date: 21 Oct 2002 19:15:39 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  kmMail Cross Site Scripting
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SUMMARY

 <http://www.kmmail.org/> kmMail is an open-sourced web-based mail client,
based on Keftamail. A security vulnerability in the product allows remote
attackers to insert malicious HTML and JavaScript into existing web pages
making it appear as if the server was the one sending it.

DETAILS

Vulnerable systems:
 * kmMail version 1.0b and prior

Immune systems:
 * kmMail version 1.0b.1

kmMail has a cross-site scripting bug when viewing HTML e-mail messages.
It filters out bad HTML elements, but not good HTML elements with bad HTML
attributes like this one:

<b onMouseOver="alert(document.location)">bolder</b>

Solutions:
Users should upgrade to version 1.0b.1

ADDITIONAL INFORMATION

The information has been provided by <mailto:ulfh@update.uu.se> Ulf
Harnhammar.

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