Re: Zero day attack protection

[Joel Esler <jesler () sourcefire com>]

Correct.   The VRT, when creating detection for various things throughout the weeks run across a vulnerability we 
already cover with an existing rule, quite often.  We call this prior coverage and if the attack vector does not 
require us to write a new rule for the vulnerability or threat, we'll simply update the reference on an older rule.  

Sent from my iPhone

> On Oct 28, 2013, at 5:25, Saint Crusty <saintcrusty () gmail com> wrote:
>
> Snort signatures have repeatedly stopped a zero-day because they were
> well researched. Meaning the signature was able to block a variation or
> a progression of an allready covered attack. I believe this is what is
> called virtual patching.
>
> This does not mean snort has zero-day protection out-of-the-box. That
> would require some futuristic piece of software to achieve ;-) Since
> you'de have to compensate for every possible attack vector. Protecting
> again buffer overflow, injection attacks, xss and others is probably the
> only thing that can be done for now. To some extent.
>
> > On 28/10/13 06:10, Anshuman Anil Deshmukh wrote:
> > Hi,
> >
> >
> >
> > Can I get some past references or examples where snort was able to
> > protect from zero day (0 day) attacks, may be with open signatures or
> > using subscriber/registered set of signatures?
> >
> >
> >
> >
> >
> > Thanks and Regards,
> >
> > Anshuman
> >
> >
> >
> >
> >
> >
> >
> >
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> Saint Crusty ( a handle like any other, not a name )
> <saint_crusty.vcf>
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------------------------------------------------------------------------------
October Webinars: Code for Performance
Free Intel webinars can help you accelerate application performance.
Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from 
the latest Intel processors and coprocessors. See abstracts and register >
http://pubads.g.doubleclick.net/gampad/clk?id=60135991&iu=/4140/ostg.clktrk
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