Re: [TLS] Rizzo claims implementation attach, should be interesting
Martin Rex <mrex@sap.com> Tue, 20 September 2011 00:50 UTC
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From: Martin Rex <mrex@sap.com>
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To: asteingruebl@paypal-inc.com
Date: Tue, 20 Sep 2011 02:53:05 +0200
In-Reply-To: <5EE049BA3C6538409BBE6F1760F328ABEBD61B6ACA@DEN-MEXMS-001.corp.ebay.com> from "Steingruebl, Andy" at Sep 19, 11 05:42:17 pm
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Subject: Re: [TLS] Rizzo claims implementation attach, should be interesting
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Steingruebl, Andy wrote: > > Martin Rex wrote: > > > > Tim Dierks wrote: > > > > > > Does anyone have any ideas what Rizzo may be announcing @ ekoparty? > > > > > > http://www.ekoparty.org/2011/juliano-rizzo.php > > > > > > BEAST: Surprising crypto attack against HTTPS > > > > The first details seem to be leaking: > > > > http://threatpost.com/en_us/blogs/new-attack-breaks-confidentiality- > > model-ssl-allows-theft-encrypted-cookies-091611 > > More "details" here: > > http://www.theregister.co.uk/2011/09/19/beast_exploits_paypal_ssl/ > > Or at least more confirming quotes from the researchers about how > quickly the can perform the attack. It seem to be a huge hype an exxageration of the problem. There is *no* problem in SSLv3 or TLSv1.0. This particular attack is a very clear "Man-in-the-Browser" attack enabled solely by the entirely braindead (lack-of) security in common Web Browsers. Since the attack happens entirely at the browser, it should IMHO the browser's duty to fix this. Potential server-side mitigation of the problem: - disable HTTP request pipelining (aka Connect: keep-alive) - avoid CBC-based cipher suites (at least when SSLv3 or TLSv1.0 is negotiated), and use RC4-128 instead. -Martin
- Re: [TLS] Rizzo claims implementation attach, sho… David Wagner
- [TLS] Rizzo claims implementation attach, should … Tim Dierks
- Re: [TLS] Rizzo claims implementation attach, sho… Peter Gutmann
- Re: [TLS] Rizzo claims implementation attach, sho… =JeffH
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Steingruebl, Andy
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Marsh Ray
- Re: [TLS] Rizzo claims implementation attach, sho… Eric Rescorla
- Re: [TLS] Rizzo claims implementation attach, sho… Eric Rescorla
- Re: [TLS] Rizzo claims implementation attach, sho… Yoav Nir
- Re: [TLS] Rizzo claims implementation attach, sho… Marsh Ray
- Re: [TLS] Rizzo claims implementation attach, sho… Yoav Nir
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Marsh Ray
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Eric Rescorla
- Re: [TLS] Rizzo claims implementation attach, sho… Phillip Hallam-Baker
- Re: [TLS] Rizzo claims implementation attach, sho… Nico Williams
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Marsh Ray
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Geoffrey Keating
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… =JeffH
- Re: [TLS] Rizzo claims implementation attach, sho… Nico Williams
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Nico Williams
- Re: [TLS] Rizzo claims implementation attach, sho… Marsh Ray
- Re: [TLS] Rizzo claims implementation attach, sho… Nico Williams
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Eric Rescorla
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Yngve N. Pettersen
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Yngve N. Pettersen
- Re: [TLS] Rizzo claims implementation attach, sho… Martin Rex
- Re: [TLS] Rizzo claims implementation attach, sho… Yoav Nir