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Date: Wed, 20 Oct 2010 13:18:29 -0700
From: Chris Evans <scarybeasts@...il.com>
To: Michal Zalewski <lcamtuf@...edump.cx>
Cc: Billy Rios <billy.rios@...il.com>,
full-disclosure <full-disclosure@...ts.grok.org.uk>,
"bugtraq@...urityfocus.com" <bugtraq@...urityfocus.com>
Subject: Re: Security-Assessment.com Advisory: Oracle JRE
- java.net.URLConnection class - Same-of-Origin (SOP) Policy Bypass
On Wed, Oct 20, 2010 at 8:58 AM, Michal Zalewski <lcamtuf@...edump.cx>wrote:
> > Security-Assessment.com follows responsible disclosure
> > and promptly contacted Oracle after discovering
> > the issue. Oracle was contacted on August 1,
> > 2010.
>
> My understanding is that Stefano Di Paola of Minded Security reported
> this back in April; and further, the feature was a part of reasonably
> well-documented functionality of Java pretty much ever since:
>
> http://download.oracle.com/javase/6/docs/api/java/net/URL.html
The Host: header trick was also used back in 2008 in Billy Rios' GIFAR
attack -- to get around the fact that Picasa hosts images on a separate
domain:
http://xs-sniper.com/blog/2008/12/17/sun-fixes-gifars/
The blog post title was "SUN Fixes GIFARs", although it's not immediately
obvious to me what was changed or fixed.
If anyone knows what was changed back then and/or in this latest release, it
would be interesting to see it documented.
Cheers
Chris
>
>
> "Two hosts are considered equivalent if both host names can be
> resolved into the same IP addresses"
>
> This was a pretty horrible design, so it's good to see it gone, though.
>
> /mz
>
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