full-disclosure - Re: TCP Hijacking (aka Man-in-the-Middle)

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Date: Fri, 26 Oct 2007 04:58:36 -0400
From: Valdis.Kletnieks@...edu
To: 3APA3A <3APA3A@...URITY.NNOV.RU>
Cc: Oliver <olivereatsolives@...il.com>, full-disclosure@...ts.grok.org.uk
Subject: Re: TCP Hijacking (aka Man-in-the-Middle)

On Fri, 26 Oct 2007 12:41:37 +0400, 3APA3A said:

> So,  generally, 1. there is no reason to spoof both connections. 2. it's

Thank you, Captain Obvious - I specifically *said* that only one of them
needs to be blind spoofing.

> only possible if sequence number is 100% (or close to 100%) predictable.

And Michael Zalewski's work showed that even on many boxes that *claim*
to have RFC1948 randomization, you can do pretty well on the predicting.

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