Re: Testing Hubs and Switches

From: Cedric Blancher (blancher@cartel-securite.fr)
Date: 12/11/02

  • Next message: Valgasu: "Re: Testing Hubs and Switches"
    From: Cedric Blancher <blancher@cartel-securite.fr>
    To: Julian Young <julian.young@nl.compuware.com>
    Date: 11 Dec 2002 17:36:39 +0100
    
    

    Le mer 11/12/2002 à 10:02, Julian Young a écrit :
    > Some time back, i guess it was last summer, somebody was asking for
    > volunteers to test their hubs and switches for security venerabilities.
    > as the time i think he wanted to put together a who's who of switches
    > and hubs.
    > Does any one recognize this , remember any urls or what happened to the
    > project. I was unable to participate at the time but still like to test
    > mine if they have not already been tested

    Project seem to be stalled :

            http://www.alaricsecurity.com/ssp.html

    It was an interesting idea, but the only submission is about ARP cache
    poisoning, and we all know switches are vulnerable to this, just because
    of their design.

    > Further is any one knows of any testing tools / techniques i would also
    > be very interested

    Taranis will be a good start :

            http://www.bitland.net/taranis/

    Taranis relies on MAC spoofing to redirect network traffic.

    You can also have a look at dsniff package :

            http://monkey.org/~dugsong/dsniff/

    It comes with macof tool that perform CAM table flooding. A switch can
    fall into repeater mode for some MAC when CAM table is full.

    If you want a complete view of switches attacks, have a look at Sean
    Convery presentation at Black Hat USA 2002 you can find here :

            http://opensores.thebunker.net/pub/mirrors/blackhat/presentations/bh-usa-02/

    You'll find layer 2 attacks such MAC attacks, ARP attacks, protocols
    attacks (CDP, DTP, VTP), VLAN hopping and others.

    -- 
    Cédric Blancher  <blancher@cartel-securite.fr>
    Consultant en sécurité des systèmes et réseaux  - Cartel Sécurité
    Tél: +33 (0)1 44 06 97 87 - Fax: +33 (0)1 44 06 97 99
    PGP KeyID:157E98EE  FingerPrint:FA62226DA9E72FA8AECAA240008B480E157E98EE
    ----------------------------------------------------------------------------
    This list is provided by the SecurityFocus Security Intelligence Alert (SIA)
    Service. For more information on SecurityFocus' SIA service which
    automatically alerts you to the latest security vulnerabilities please see:
    https://alerts.securityfocus.com/
    


    Relevant Pages

    • RE: rogue IP address
      ... Port-to-IP is nice to have on switches, ... find a MAC address that you can then track in the switch. ... > recognized corporate security certification track, ... This ALL INCLUSIVE curriculum utilizes lectures, case studies and true hands-on utilization ...
      (Security-Basics)
    • Re: Hotspot Security?
      ... I'm only familiar with the switches. ... using dhcp and a https logon with no mac or wep/wpa encryption. ... that security cannot be assumed and needs to be tested. ... such as Ethereal or Wireshark on each network and see if any ...
      (alt.internet.wireless)
    • Re: help me understand how a Mac is virtually immune to viruses?
      ... > there's a smaller target space which discourages potential attacks. ... > Mac and/or Linux became equally common environments wrt Win boxes I ... > succeed because of the intrinsic better security. ... I think some of the preference for attacking Windows stems ...
      (sci.astro.amateur)
    • Mac vulnerability
      ... Mac has in fact been in the news a lot lately because of this (somehow ... Mac Mini weathers 38hrs of attacks ... One attacker claimed he had breached security in less than 30 ... being on the internet," Dave Schroeder, a senior systems engineer at the ...
      (rec.arts.movies.production.sound)
    • Re: Mac vulnerability
      ... Mac has in fact been in the news a lot lately because of this (somehow ... Mac Mini weathers 38hrs of attacks ... One attacker claimed he had breached security in less than 30 ... being on the internet," Dave Schroeder, a senior systems engineer at the ...
      (rec.arts.movies.production.sound)