full-disclosure - Re: Facebook URL Redirect Vulnerability

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Message-ID: <AANLkTikEidm9My04qS72aK7doUsv0G9KzcoM-FMD5sEv@mail.gmail.com>
Date: Tue, 1 Mar 2011 18:46:08 -0800
From: Chris Evans <scarybeasts@...il.com>
To: Andrew Farmer <andfarm@...il.com>
Cc: Nathan Power <np@...uritypentest.com>,
	Full Disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Facebook URL Redirect Vulnerability

On Tue, Mar 1, 2011 at 5:56 PM, Andrew Farmer <andfarm@...il.com> wrote:

> On 2011-02-28, at 09:42, Nathan Power wrote:
> > 3. Impact:
> >
> > Potentially allow an attacker to compromise a victim’s Facebook account
> > and/or computer system.
>
> Do you have an actual attack in mind which could accomplish either of these
> goals, or is this wishful thinking? (Browser exploits don't really count, as
> those would work just fine with or without the redirect.)
>
> To be clear - open redirects are certainly a problem, but don't try to call
> them any more than that.
>

Thanks for the note of sanity. Not everyone thinks they even a problem:

http://scarybeastsecurity.blogspot.com/2010/06/open-redirectors-some-sanity.html

Tip for OWASP: when listing vulnerability classes, feel free to stop at 9
rather than struggling to find a random 10th, just because 10 is a nice
number :)


Cheers
Chris

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