nanog mailing list archives
Re: Revealed: The Internet's Biggest Security Hole
From: <marcus.sachs () verizon com>
Date: Wed, 27 Aug 2008 22:30:05 -0400
I'll have to admit that the TTL manipulation was something I had not thought about. But why not? If you are going to purloin EVERY packet then why not re-write byte 8 in every IP header to a value of your choosing? Very cool. Marc ------Original Message------ From: Jason Ross To: Sachs, Marcus H. (Marc) Cc: Gadi Evron Cc: nanog () merit edu Sent: Aug 27, 2008 22:21 Subject: Re: Revealed: The Internet's Biggest Security Hole On Wed, Aug 27, 2008 at 9:52 PM, <marcus.sachs () verizon com> wrote:
Yes, wonderful preso! My biggest take-away was the fact that the vast majority of the attendees did not understand the gravity of the demo.
Agreed on both counts: the presentation was great, and largely not understood it seemed.
hehe "new". hehe Maybe something will change now' though, it was a great and impressive presentation, hijacking the defcon network and tweaking TTL to hide it.
Notably, Alex and Tony both mentioned that the BGP tricks were not new during the presentation, and commented that it would essentially not be surprising to anyone that groks routing at the level that most of the folks on this list does. What was new though according to their presentation (and it was new to me certainly, but I'm still fairly green) was the AS Path prepending to complete the circuit, and as you mentioned, the TTL magicks to hide the hops. I was suitably impressed at that. -- Jason -------------------------- Marcus H. Sachs Verizon 202 515 2463 Sent from my BlackBerry
Current thread:
- Revealed: The Internet's Biggest Security Hole Frank (Aug 27)
- Re: Revealed: The Internet's Biggest Security Hole Gadi Evron (Aug 27)
- <Possible follow-ups>
- Re: Revealed: The Internet's Biggest Security Hole marcus.sachs (Aug 27)
- Re: Revealed: The Internet's Biggest Security Hole Gadi Evron (Aug 27)
- Re: Revealed: The Internet's Biggest Security Hole marcus.sachs (Aug 27)
- Re: Revealed: The Internet's Biggest Security Hole Jason Ross (Aug 27)
- Re: Revealed: The Internet's Biggest Security Hole marcus.sachs (Aug 27)
- RE: Revealed: The Internet's Biggest Security Hole Allen Bass (Aug 27)
- Re: Revealed: The Internet's Biggest Security Hole Hank Nussbacher (Aug 27)
- Re: Revealed: The Internet's Biggest Security Hole Joel Jaeggli (Aug 28)