Date: Fri, 15 Jun 2001 14:52:47 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Nate Williams <nate@yogotech.com> Cc: Jordan Hubbard <jkh@osd.bsdi.com>, hackers@FreeBSD.ORG Subject: Re: Query: How to tell if Microsoft is using BSD TCP/IP code? Message-ID: <20010615145247.A79042@xor.obsecurity.org> In-Reply-To: <15146.30861.669216.436091@nomad.yogotech.com>; from nate@yogotech.com on Fri, Jun 15, 2001 at 03:05:17PM -0600 References: <20010615135713Y.jkh@osd.bsdi.com> <15146.30861.669216.436091@nomad.yogotech.com>
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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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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