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Re: TCP RST attack (the cause of all that MD5-o-rama)

  • From: Stephen J. Wilcox
  • Date: Tue Apr 20 15:26:39 2004

On Tue, 20 Apr 2004, James wrote:

> i can see this 'attack' operational against a multihop bgp session that's
> not md5'd.
> 
> now the question is... would this also affect single-hop bgp sessions?
> my understanding would be no, as single-hops require ttl set to 1.

you can engineer packets to make sure they have the right ttl when they arrive, 
ie if your 10 hops away, set ttl to 10 and it will be 1 on arrival :)

Steve

> 
> -J
> 
> 
> On Tue, Apr 20, 2004 at 01:36:09PM -0400, Mike Tancsa wrote:
> > 
> > 
> > 
> > http://www.uniras.gov.uk/vuls/2004/236929/index.htm
> > 
> > --------------------------------------------------------------------
> > Mike Tancsa,                          	          tel +1 519 651 3400
> > Sentex Communications,     			  [email protected]
> > Providing Internet since 1994                    www.sentex.net
> > Cambridge, Ontario Canada			  www.sentex.net/mike
> 
>