Ethereal-dev: Re: [Ethereal-dev] Detecting TCP Timestamp PAWS DoS from tracefile

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From: "Alok" <alokdube@xxxxxxxxxx>
Date: Sun, 7 Aug 2005 15:11:44 +0530
If the "sequence number" is not validated, how is the window destroyed?? :-)
Say for example I have host A and host B
i send some random "acks nums" to B with some random seqeunce nums
pretending to be A
now
a. B wll check the ack num ,else the ack has no meaning and it will not
honor the "bits" ;-), now how do i get the ack nums correct?
b. or are you saying the tsval is treated orthogonal to the sequence number?

----- Original Message ----- 
From: "J.Smith" <lbalbalba@xxxxxxxxxxx>
To: "Ethereal development" <ethereal-dev@xxxxxxxxxxxx>
Sent: Sunday, August 07, 2005 2:46 PM
Subject: Re: [Ethereal-dev] Detecting TCP Timestamp PAWS DoS from tracefile


> Alok,
>
> In certain TCP implementations sequence numbers are not properly
validated,
> so in those cases an attacker does not even need to know the correct
> sequence numbers.
>
> Sincerely,
>
> John Smith.
>
>
> ----- Original Message ----- 
> From: "Alok" <alokdube@xxxxxxxxxx>
> To: "Ethereal development" <ethereal-dev@xxxxxxxxxxxx>
> Sent: Saturday, August 06, 2005 8:22 PM
> Subject: Re: [Ethereal-dev] Detecting TCP Timestamp PAWS DoS from
tracefile
>
>
> > Thanks to Guy for the RFC,
> >
> > How can the attacker get the sequence numbers correct/within the window
> > range to be able to destroy exactly that window?
> >
> >
> >
> > _______________________________________________
> > Ethereal-dev mailing list
> > Ethereal-dev@xxxxxxxxxxxx
> > http://www.ethereal.com/mailman/listinfo/ethereal-dev
> >
>
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