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[ GLSA 200406-08 ] Squirrelmail: Another XSS vulnerability
From: Thierry Carrez <koon () gentoo org>
Date: Tue, 15 Jun 2004 21:00:27 +0200

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Gentoo Linux Security Advisory                           GLSA 200406-08
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Squirrelmail: Another XSS vulnerability
      Date: June 15, 2004
      Bugs: #52434
        ID: 200406-08

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Synopsis
========

Squirrelmail fails to properly sanitize user input, which could lead to
a compromise of webmail accounts.

Background
==========

SquirrelMail is a webmail package written in PHP. It supports IMAP and
SMTP, and can optionally be installed with SQL support.

Affected packages
=================

    -------------------------------------------------------------------
     Package                   /     Vulnerable     /       Unaffected
    -------------------------------------------------------------------
  1  mail-client/squirrelmail      <= 1.4.3_rc1-r1            >= 1.4.3

Description
===========

A new cross-site scripting (XSS) vulnerability in
Squirrelmail-1.4.3_rc1 has been discovered. In functions/mime.php
Squirrelmail fails to properly sanitize user input.

Impact
======

By enticing a user to read a specially crafted e-mail, an attacker can
execute arbitrary scripts running in the context of the victim's
browser. This could lead to a compromise of the user's webmail account,
cookie theft, etc.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SquirrelMail users should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv ">=mail-client/squirrelmail-1.4.3"
    # emerge ">=mail-client/squirrelmail-1.4.3"

References
==========

  [ 1 ] RS-Labs Advisory
        http://www.rs-labs.com/adv/RS-Labs-Advisory-2004-1.txt
  [ 2 ] CERT description of XSS
        http://www.cert.org/advisories/CA-2000-02.html

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

     http://security.gentoo.org/glsa/glsa-200406-08.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security () gentoo org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 Gentoo Technologies, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/1.0

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