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Fwd: [apps-discuss] Fwd: WG Review: Web Security (websec)

From: Mark Nottingham <mnot@mnot.net>
Date: Sat, 2 Oct 2010 11:37:45 +1000
To: HTTP Working Group <ietf-http-wg@w3.org>
Message-Id: <651A3E8C-53DC-47C5-B886-DDBD46E8E640@mnot.net>
In case you haven't seen it...

Begin forwarded message:

> From: Peter Saint-Andre <stpeter@stpeter.im>
> Date: 29 September 2010 3:47:59 AM AEST
> To: "apps-discuss@ietf.org" <apps-discuss@ietf.org>
> Subject: [apps-discuss] Fwd: WG Review: Web Security (websec)
> FYI.
> -------- Original Message --------
> Subject: WG Review: Web Security (websec)
> Date: Tue, 28 Sep 2010 10:15:06 -0700 (PDT)
> From: IESG Secretary <iesg-secretary@ietf.org>
> Reply-To: iesg@ietf.org
> To: ietf-announce@ietf.org
> CC: hasmat@ietf.org
> A new IETF working group has been proposed in the Applications Area.  The
> IESG has not made any determination as yet. The following draft charter
> was submitted, and is provided for informational purposes only. Please
> send your comments to the IESG mailing list (iesg@ietf.org) by Tuesday,
> October 5, 2010.
> Web Security (websec)
> ---------------------------------------------
> Status: Proposed Working Group
> Last updated: 2010-09-23
> Chairs(s)
>   Tobias Gondrom <tobias.gondrom@gondrom.org>
> Applications Area Directors:
>   Alexey Melnikov <alexey.melnikov@isode.com>
>   Peter Saint-Andre <stpeter@stpeter.im>
> Applications Area Advisor:
>   Peter Saint-Andre <stpeter@stpeter.im>
> Security Area Advisor:
>   Sean Turner <turners@ieca.com>
> Mailing Lists:
>  General Discussion: hasmat@ietf.org
>  To Subscribe: <https://www.ietf.org/mailman/listinfo/hasmat>
>  Archive: <http://www.ietf.org/mail-archive/web/hasmat/>
>  [to be changed to websec@ietf.org if approved]
> Problem Statement
> Although modern Web applications are built on top of HTTP, they provide
> rich functionality and have requirements beyond the original vision of
> static web pages.  HTTP, and the applications built on it, have evolved
> organically.  Over the past few years, we have seen a proliferation of
> AJAX-based web applications (AJAX being shorthand for asynchronous
> JavaScript and XML), as well as Rich Internet Applications (RIAs), based
> on so-called Web 2.0 technologies.  These applications bring both
> luscious eye-candy and convenient functionality, e.g. social networking,
> to their users, making them quite compelling.  At the same time, we are
> seeing an increase in attacks against these applications and their
> underlying technologies.
> The list of attacks is long and includes Cross-Site-Request Forgery
> (CSRF)-based attacks, content-sniffing, cross-site-scripting (XSS)
> attacks, attacks against browsers supporting anti-XSS policies,
> clickjacking attacks, malvertising attacks, as well as man-in-the-middle
> (MITM) attacks against "secure" (e.g. Transport Layer Security
> (TLS/SSL)-based) web sites along with distribution of the tools to carry
> out such attacks (e.g. sslstrip).
> Objectives and Scope
> With the arrival of new attacks the introduction of new web security
> indicators, security techniques, and policy communication mechanisms
> have sprinkled throughout the various layers of the Web and HTTP.
> The goal of this working group is to compose an overall "problem
> statement and requirements" document derived from surveying the
> issues outlined in the above section ([1] provides a starting point).
> The requirements guiding the work will be taken from the Web
> application and Web security communities.  The scope of this document
> is HTTP applications security, but does not include HTTP authentication,
> nor internals of transport security which are addressed by other working
> groups (although it may make reference to transport security as an
> available security "primitive").  See the "Out of Scope" section, below.
> Additionally, the WG will standardize a small number of selected
> specifications that have proven to improve security of Internet
> Web applications.  Initial work will be the following topics:
>  - Same origin policy, as discussed in draft-abarth-origin
>    (see also Appendices A and B, below)
>  - HTTP Strict transport security, as discussed in
>    draft-hodges-strict-transport-sec
>  - Media type sniffing, as discussed in draft-abarth-mime-sniff
> This working group will work closely with IETF Apps Area WGs (such as
> HYBI, HTTPstate, and HTTPbis), as well as appropriate W3C working
> group(s) (e.g. HTML, WebApps).
> Out of Scope
> As noted in the objectives and scope (above), this working group's
> scope does not include working on HTTP Authentication nor underlying
> transport (secure or not) topics. So, for example, these items are
> out-of-scope for this WG:
>  - Replacements for BASIC and DIGEST authentication
>  - New transports (e.g. SCTP and the like)
> Deliverables
> 1. A document illustrating the security problems Web applications are
> facing and listing design requirements.  This document shall be
> Informational.
> 2. A selected set of technical specifications documenting deployed
> HTTP-based Web security solutions. These documents shall be Standards
> Track.
> Goals and Milestones
> Oct 2010    Submit "HTTP Application Security Problem Statement and
>           Requirements" as initial WG item.
> Oct 2010    Submit "Media Type Sniffing" as initial WG item.
> Oct 2010    Submit "Web Origin Concept" as initial WG item.
> Oct 2010    Submit "Strict Transport Security" as initial WG item.
> Feb 2011    Submit "HTTP Application Security Problem Statement and
>           Requirements" to the IESG for consideration as an
>           Informational RFC.
> Mar 2011    Submit "Media Type Sniffing" to the IESG for consideration
>           as a Standards Track RFC.
> Mar 2011    Submit "Web Origin Concept" to the IESG for consideration as
>           a Standards Track RFC.
> Mar 2011    Submit "Strict Transport Security" to the IESG for
>           consideration as a Standards Track RFC.
> Apr 2011    Possible re-chartering
> References
> [1] Hodges and Steingruebl, "The Need for a Coherent Web Security Policy
> Framework", W2SP position paper, 2010.
> http://w2spconf.com/2010/papers/p11.pdf
> Appendices
> A. Relationship between origin work in IETF WebSec and W3C HTML WG
> draft-abarth-origin defines the nuts-and-bolts of working with
> origins (computing them from URIs, comparing them to each other, etc).
> HTML5 defines HTML-specific usage of origins.  For example, when
> making an HTTP request, HTML5 defines how to compute which origin
> among all the origins rendering HTML is the one responsible for making
> the request.  draft-abarth-origin then takes that origin, serializes
> it to a string, and shoves it in a header.
> B. Origin work may yield two specifications
> There also seems to be demand for a document that describes the
> same-origin security model overall.  However, it seems like that
> document ought to be more informative rather than normative. The
> working group may split draft-abarth-origin into separate informative
> and standards track specifications, the former describing same-origin
> security model, and the latter specifying the nuts-and-bolts of working
> with origins (computing them from URLs, comparing them to each other,
> etc).
> _______________________________________________
> apps-discuss mailing list
> apps-discuss@ietf.org
> https://www.ietf.org/mailman/listinfo/apps-discuss

Mark Nottingham   http://www.mnot.net/
Received on Saturday, 2 October 2010 01:38:18 UTC

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