[Full-disclosure] [ GLSA 200804-24 ] DBmail: Data disclosure

[Matthias Geerdsen]

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Gentoo Linux Security Advisory                           GLSA 200804-24
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                                             http://security.gentoo.org/
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   Severity: Low
      Title: DBmail: Data disclosure
       Date: April 18, 2008
       Bugs: #218154
         ID: 200804-24

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Synopsis
========

A vulnerability in DBMail could allow for passwordless login to any
account under certain configurations.

Background
==========

DBMail is a mail storage and retrieval daemon that uses SQL databases
as its data store. IMAP and POP3 can be used to retrieve mails from the
database.

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

     -------------------------------------------------------------------
      Package          /  Vulnerable  /                      Unaffected
     -------------------------------------------------------------------
   1  net-mail/dbmail       < 2.2.9                            >= 2.2.9

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

A vulnerability in DBMail's authldap module when used in conjunction
with an Active Directory server has been reported by vugluskr. When
passing a zero length password to the module, it tries to bind
anonymously to the LDAP server. If the LDAP server allows anonymous
binds, this bind succeeds and results in a successful authentication to
DBMail.

Impact
======

By passing an empty password string to the server, an attacker could be
able to log in to any account.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All DBMail users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=net-mail/dbmail-2.2.9"

References
==========

   [ 1 ] CVE-2007-6714
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6714

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

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

   http://security.gentoo.org/glsa/glsa-200804-24.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 at gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2008 Gentoo Foundation, 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/2.5

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