full-disclosure - Crafted SYN Packets...

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Date: Wed, 14 Nov 2007 09:35:22 +1100
From: "Kelly Robinson" <caliana1989@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Crafted SYN Packets...

Looking at some suspicious behaviour in our logs...

If someone sends a packet with the SYN bit set to a host, typically what is
the client's source port? Or is that crafted too?

And additionally, when a client does sent a packet of this type, am I right
in assuming its generally TCP only? Can you have a UDP SYN packet? I assume
because its connectionless, no???

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