[LAC-TF] Virtual Private Network (VPN) traffic leakages in dual-stack hosts/ networks (Fwd: [OPSEC] I-D Action: draft-ietf-opsec-vpn-leakages-02.txt)

Fernando Gont fgont at si6networks.com
Thu Aug 22 21:45:04 BRT 2013

FYI: <http://tools.ietf.org/html/draft-ietf-opsec-vpn-leakages-02>

(Habemus VPN leakage por no sportarum el nuevo protocolum :-)  )

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Subject: [OPSEC] I-D Action: draft-ietf-opsec-vpn-leakages-02.txt
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A New Internet-Draft is available from the on-line Internet-Drafts
 This draft is a work item of the Operational Security Capabilities for
IP Network Infrastructure Working Group of the IETF.

	Title           : Virtual Private Network (VPN) traffic leakages in
dual-stack hosts/ networks
	Author(s)       : Fernando Gont
	Filename        : draft-ietf-opsec-vpn-leakages-02.txt
	Pages           : 15
	Date            : 2013-08-22

   The subtle way in which the IPv6 and IPv4 protocols co-exist in
   typical networks, together with the lack of proper IPv6 support in
   popular Virtual Private Network (VPN) products, may inadvertently
   result in VPN traffic leaks.  That is, traffic meant to be
   transferred over a VPN connection may leak out of such connection and
   be transferred in the clear from the local network to the final
   destination.  This document discusses some scenarios in which such
   VPN leakages may occur, either as a side effect of enabling IPv6 on a
   local network, or as a result of a deliberate attack from a local
   attacker.  Additionally, it discusses possible mitigations for the
   aforementioned issue.

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