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                                  CERT-Renater

                       Note d'Information No. 2004/VULN303
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DATE                      : 23/06/2004

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running ipsec-tools.

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Gentoo Linux Security Advisory                           GLSA 200406-17
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                                             http://security.gentoo.org/
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   Severity: Normal
      Title: IPsec-Tools: authentication bug in racoon
       Date: June 22, 2004
       Bugs: #53915
         ID: 200406-17

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Synopsis
========

racoon provided as part of IPsec-Tools fails do proper authentication.

Background
==========

IPsec-Tools is a port of KAME's implementation of the IPsec utilities.
It contains a collection of network monitoring tools, including racoon,
ping, and ping6.

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

     -------------------------------------------------------------------
      Package                   /   Vulnerable   /           Unaffected
     -------------------------------------------------------------------
   1  net-firewall/ipsec-tools        < 0.3.3                  >= 0.3.3

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

The KAME IKE daemon racoon is used to authenticate peers during Phase 1
when using either preshared keys, GSS-API, or RSA signatures. When
using RSA signatures racoon validates the X.509 certificate but not the
RSA signature.

Impact
======

By sending a valid and trusted X.509 certificate and any private key an
attacker could exploit this vulnerability to perform man-in-the-middle
attacks and initiate unauthorized connections.

Workaround
==========

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version.

Resolution
==========

All IPsec-Tools users should upgrade to the latest stable version:

     # emerge sync

     # emerge -pv ">=net-firewall/ipsec-tools-0.3.3"
     # emerge ">=net-firewall/ipsec-tools-0.3.3"

References
==========

   [ 1 ] IPsec-Tools Advisory
         http://ipsec-tools.sourceforge.net/x509sig.html

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

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

      http://security.gentoo.org/glsa/glsa-200406-17.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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