Re: [secdir] SECDIR review of draft-ietf-mpls-forwarding-06
Stephen Kent <kent@bbn.com> Wed, 05 February 2014 21:30 UTC
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Date: Wed, 05 Feb 2014 16:30:19 -0500
From: Stephen Kent <kent@bbn.com>
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Cc: swallow@cisco.com, samante@apple.com, cpignata@cisco.com, kireeti@juniper.net, secdir <secdir@ietf.org>, agmalis@gmail.com, curtis@occnc.com, rcallon@juniper.net, Adrian Farrel <adrian@olddog.co.uk>, Loa Andersson <loa@pi.nu>, Stewart Bryant <stbryant@cisco.com>
Subject: Re: [secdir] SECDIR review of draft-ietf-mpls-forwarding-06
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Curtis, I agree; the new text is better. Thanks, Steve > In message <52F249B4.6020301@bbn.com> > Stephen Kent writes: >> Curtis, >> >> Thanks for the quick reply. >> >> I agree that a thorough summary of the relevant security considerations >> from the many normative references would be a non-trivial task ;-). >> The brief summary you assembled is excellent! >> >> I am satisfied with the changes/responses. >> >> Steve > > Steve, > > If you don't mind I'd like to add a little to this. This is the very > last paragraph and follows the numbered list. > > OLD PROPOSED > > MPLS security including data plane security is discussed in greater > detail in [RFC5920] (MPLS/GMPLS Security Framework). > > NEW PROPOSED > > MPLS security including data plane security is discussed in greater > detail in [RFC5920] (MPLS/GMPLS Security Framework). THe MPLS-TP > security framework [RFC6941] build upon this, focusing largely on > the MPLS-TP OAM additions and OAM channels with some attention > given to using network management in place of control plane setup. > In both security framework documents MPLS is assumed to run within > a "trusted zuone", defined as being where a single service provider > (SP) has total operational control over that part of the network. > > If control plane security and management plane security are > sufficiently robust, compromise of a single network element may > result in chaos in the data plane anywhere in the network through > denial of service attacks, but not a Byzantine security failure in > which other network elements are fully compromised. > > MPLS security, or lack of, can affect whether traffic can be > misrouted and lost, or intercepted, or intercepted and reinserted > (a man-in-the-middle attack) or spoofed. End user applications, > including control plane and management plane protocols used by the > SP, are expected to make use of appropriate end-to-end > authentication and where appropriate end-to-end encryption. > > I think the original, while not incorrect, was too brief. This new > text provides a better summary, indicating the underlying "trusted > zuone" assumption and the lack of any meaningful data plane security > if that underlying assumption proves invalid for any reason, but most > likely invalid due to a breach or a physical intercept along > transmission media. > > Please let me know if this further change is an improvement or if we > should leave it out (or change it). > > Curtis >
- [secdir] SECDIR review of draft-ietf-mpls-forward… Stephen Kent
- Re: [secdir] SECDIR review of draft-ietf-mpls-for… Curtis Villamizar
- Re: [secdir] SECDIR review of draft-ietf-mpls-for… Loa Andersson
- Re: [secdir] SECDIR review of draft-ietf-mpls-for… Stephen Kent
- Re: [secdir] SECDIR review of draft-ietf-mpls-for… Carlos Pignataro (cpignata)
- Re: [secdir] SECDIR review of draft-ietf-mpls-for… Curtis Villamizar
- Re: [secdir] SECDIR review of draft-ietf-mpls-for… Curtis Villamizar
- Re: [secdir] SECDIR review of draft-ietf-mpls-for… Stephen Kent
- [secdir] SECDIR review of draft-ietf-mpls-forward… Stephen Kent