Bugtraq mailing list archives
Re: TCP timestamp & advanced fingerprinting
From: Erwan Arzur <erwan () lse epita fr>
Date: Tue, 29 Mar 2005 10:47:10 +0200
Bruce Klein wrote:
How does this compare with [Prs2002] Clock Deviation/Skew as a Forensics/Tracking Tool research done by Tadayoshi Kohno. http://www.cse.ucsd.edu/users/tkohno/ Bruce Klein iovation, Inc.
Hello Bruce,I think the way he took the problem is much simpler than in this paper (and it gathers less informations about the hosts, too). The technique is described in this paper from Bret Mc Danel : http://www.0xdecafbad.com/TCP-Timestamping-Obtaining-System-Uptime-Remotely.html, who was kind enough to point us to it (we need to update the paper to give him the credit he deserves), the paper & tool use the statistical differences between the timestamps to separate services behind a screening router doing NAT, allowing network mapping behind a firewall, not fingerprinting of a single computer.
Erwan
Current thread:
- TCP timestamp & advanced fingerprinting Erwan Arzur (Mar 25)
- <Possible follow-ups>
- RE: TCP timestamp & advanced fingerprinting Bruce Klein (Mar 26)
- Re: TCP timestamp & advanced fingerprinting Erwan Arzur (Mar 29)