full-disclosure - Re: Microsoft Windows TCP/IP Timestamps Code Execution Vulnerability

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Date: Fri, 27 Nov 2009 20:27:07 -0300
From: Fernando Gont <fernando.gont@...il.com>
To: Ivan Security <ivanchukl@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Microsoft Windows TCP/IP Timestamps Code
	Execution Vulnerability

On Fri, Nov 27, 2009 at 1:59 AM, Ivan Security <ivanchukl@...il.com> wrote:

> Has anyone more details about this vulnerability?. The advisory just say:
> "The vulnerability exists due to the TCP/IP stack not cleaning up state
> information correctly. This causes the TCP/IP stack to reference a field as
> a function pointer when it actually contains other information"
> I'd like to know a bit more in order to test it and make some research.

This certainly looks like an implementation bug. Nevertheless, when it
comes to protocol or "design" vulnerabilities, you might want to use
this document as a reference:
http://www.cpni.gov.uk/Docs/tn-03-09-security-assessment-TCP.pdf

Feedback is always welcome.

Kind regards,
Fernando

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