On Fri, Jun 15, 2001 at 03:05:17PM -0600, Nate Williams wrote:
> > I've had several marketing types approach me recently for details as
> > to whether or not Microsoft was using the BSD TCP/IP stack and/or user
> > utilities, and though it's always been "common knowledge" in the
> > community that they were, when I set about to "prove" it I found it to
> > be less easy than I'd thought.  I've strings'd various binaries and
> > DLLs in my copy of Windows 98 but have yet to find anything resembling
> > proof.  Does anyone out there have any details or discovery techniques
> > for confirming or disproving this assertion either way?  It would be
> > very useful (for us) from a PR standpoint to know.
> 
> I think the nmap folks noticed that the stack in Win98 (I don't remember
> if it was in Win2K as wll) behaved almost exactly like the BSD stack in
> ways that weren't mandatory.  Their conclusion was that it had to be
> based on the BSD code to get such similar behavior, since no other stack
> behaved in this manner.

One signature of this might be vulnerability history: there have been
a number of corner-case IP stack vulnerabilities over the years which
were also shared by Windows and may indicate a common code heritage.
Of course, it's still not conclusive.

Kris

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