Re: Apple Safari ... DoS Vulnerability

[Chris Evans <scarybeasts () gmail com>]

On Mon, Mar 2, 2009 at 6:28 PM, Nick FitzGerald
<nick () virus-l demon co uk> wrote:
> Chris Evans to Thierry Zoller:
>
> > > Example
> > > If a chrome tab can be crashed arbritarely (remotely) it is a DoS attack
> > > but with ridiculy low impact to the end-user as it only crashes the tab
> > > it was subjected to, and not the whole browser or operation system.
> > > But the fact remains that this was the impact of a DoS condition,
> > > the tab crashes arbritarily.
> >
> > Eh? If you visit www.evil.com and your tab crashes, that's no
> > different from www.evil.com closing its own tab with Javascript.
>
> But what if www.evil.com has run an injection attack of some kind (SQL,
> XSS in blog comments, etc, etc) against www.stupid.com?
>
> Visitors to stupid.com then suffer a DoS...

So, you have injected HTML into stupid.com, and you choose to inflict
the fury of a closing tab upon hapless visitors?

Cheers
Chris

> Yes, stupid.com should run their site better, fix their myriad XSS holes,
> etc, etc.
>
> But this is the Internet, so this "software flaw" can be leveraged as
> security vulnerability.
>
> I'm with Thierry on this...
>
>
> Regards,
>
> Nick FitzGerald
>
>
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