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NYC LOCAL: Wednesday 6 August NYCBUG: Matthew Burnside on bad interactio

From: secretary
Subject: NYC LOCAL: Wednesday 6 August NYCBUG: Matthew Burnside on bad interaction of ssh and sudo, and a fix, Public Key sudo
Date: 5 Aug 2008 16:42:44 -0400

  what="official NYCBUG announcement">

 Date: Mon, 04 Aug 2008 13:31:21 -0400
 From: NYC*BUG Announcements <>
 Subject: [announce] NYC*BUG: Wednesday on Public Key sudo

 August 06, 2008
 Public Key sudo

 6:30pm, Suspenders Restaurant

 Two tools which have become the norm in Linux- and Unix-based 
 environments are SSH for secure communications, and sudo for performing 
 administrative tasks. These are independent programs with substantially 
 different purposes, but they are often used in conjunction. In this 
 talk, I describe a flaw in their interaction, and then present our 
 solution called public-key sudo.

 Public-key sudo is an extension to the sudo authentication mechanism 
 which allows for public key authentication using the SSH public key 
 framework. I describe our implementation of a generic SSH authentication 
 module and the sudo modifications required to use this module.


 Matthew Burnside is a Ph.D. student in the Computer Science department 
 at Columbia University, in New York. He works for Professor Angelos 
 Keromytis in the Network Security Lab ( He 
 received his B.A and M.Eng from MIT in 2000, and 2002, respectively. His 
 research interests are in network anonymity, trust management, and 
 enterprise-scale policy enforcement.
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Distributed poC TINC:

Jay Sulzberger <>
Corresponding Secretary LXNY
LXNY is New York's Free Computing Organization.

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