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Monkey In The
                        Attack
     Middle
  Hangin on with Ubuntu
      (arpWall projekt snapshot)




    ...
OUR TA SK
• Spoiler, Intro, about
• Arp brief, Arp attack
• Ubuntu, arpwatch, swatch, gtk2-perl,
  arpWall
• Shortcut, Con...
SP OIL ER
Believe me !, there isn`t any monkey
was harm for this presentation




                                y3 dips ...
IN TR O
• I am y3dips
• Stuck in IT Security & Hacking since 2002
• Wrote articles, tips&tricks, advisories
• Founder of e...
ABOUT A MONK EY
•   It Could`ve be every Man/Woman
•   Always Mess Around
•   Know Nothing
•   Less knowledge
•   Using so...
ARP BR IEF
• Address Resolution Protocol
• Map IP network addresses to the
  hardware addresses




                      ...
Images taken from: http://www.micr*soft.com
                      y3 dips | RITECH 2007
ARP ATTA CK
• ARP spoofing aka ARP poisoning




                                   y3 dips | RITECH 2007
ARP ATTA CK ( SP OO FING)
• Send ‘fake’ or 'spoofed', ARP
  messages to an Ethernet LAN. These
  frames contain false MAC ...
Images taken from:dips | RITECH 2007
                y3 http://www.acm.org
ARP ATTA CK ( IMP ACT)
• Sniff data frames
• Modify the traffic
• Stop the traffic (denial of
  services)




            ...
Arp Atta ck (to ols)
•   ArpSpoof.c
•   Nemesis
•   Dsniff
•   Ettercap-NG
•   Cain & Abel
•   etc …


                   ...
y3 dips | RITECH 2007
y3 dips | RITECH 2007
STAND TALL AS A HUMAN
        http://www-user.tu-chemnitz.de/~fri/test/Evolution-man.jpg
                                 ...
DEFEN CE AS A HUMA N
•   Ubuntu GNU/Linux
•   Arpwatch
•   Swatch
•   Perl-gtk
•   arpWall



                       y3 di...
UBU NTU
• Ubuntu is an African word meaning
  ‘Humanity to others‘
• Community developed
• Debian GNU/linux-based operatin...
ARPWA TCH
• Monitors mac adresses on your
  network and writes them into a file
• http://freequaos.host.sk/arpwatch/
  – L...
y3 dips | RITECH 2007
SWA TCH
• The active log file monitoring tool
• http://swatch.sourceforge.net/
  – Latest rilis version 3.2.1
• Sudo apt-g...
y3 dips | RITECH 2007
GTK2-P ER L
• The collective name for a set of
  perl bindings for Gtk+ 2.x and
  various related libraries
• These module...
y3 dips | RITECH 2007
AR PW ATCH

SWAT CH

GTK 2-PE RL
                  +
    ?
              y3 dips | RITECH 2007
y3 dips | RITECH 2007
ARPWA LL
• This tools will give an early
  warning when arp attack occurs and
  will simply block the connection
• http://...
y3 dips | RITECH 2007
SH OR TCUT
• Set Static Arp Table
• Sudo arp –s [ip] [mac address]



• Would be a problem
• Still Not 100% surely Secure
...
y3 dips | RITECH 2007
CONCL USION
• Fix MAC for each device port
• Using another good Authentication
  than using MAC address
• Good Network Con...
CONCL USION ( END USER )
• Using arpwatch-ng, X-arp, arp-guard,
  or other arp-defend-application
• using Secure connectio...
THAT S ALL

    FOL KZ
Have Somethin to Discuss?
        (talk talk talk)




                            y3 dips | RITECH...
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Arpwall - protect from ARP spoofing

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Arpwall - protect from ARP spoofing

  1. 1. Monkey In The Attack Middle Hangin on with Ubuntu (arpWall projekt snapshot) y3 dips | RITECH 2007
  2. 2. OUR TA SK • Spoiler, Intro, about • Arp brief, Arp attack • Ubuntu, arpwatch, swatch, gtk2-perl, arpWall • Shortcut, Conclusion y3 dips | RITECH 2007
  3. 3. SP OIL ER Believe me !, there isn`t any monkey was harm for this presentation y3 dips | RITECH 2007
  4. 4. IN TR O • I am y3dips • Stuck in IT Security & Hacking since 2002 • Wrote articles, tips&tricks, advisories • Founder of echo.or.id & ubuntulinux.or.id • Another Comp/Inet/Net:Security Junkie y3 dips | RITECH 2007
  5. 5. ABOUT A MONK EY • It Could`ve be every Man/Woman • Always Mess Around • Know Nothing • Less knowledge • Using some friendly tools (cain & abel) • A kiddie y3 dips | RITECH 2007
  6. 6. ARP BR IEF • Address Resolution Protocol • Map IP network addresses to the hardware addresses y3 dips | RITECH 2007
  7. 7. Images taken from: http://www.micr*soft.com y3 dips | RITECH 2007
  8. 8. ARP ATTA CK • ARP spoofing aka ARP poisoning y3 dips | RITECH 2007
  9. 9. ARP ATTA CK ( SP OO FING) • Send ‘fake’ or 'spoofed', ARP messages to an Ethernet LAN. These frames contain false MAC addresses, confusing network devices (e.g switches) • As a result frames intended for one machine can be mistakenly sent to another Source : wikipedia.org y3 dips | RITECH 2007
  10. 10. Images taken from:dips | RITECH 2007 y3 http://www.acm.org
  11. 11. ARP ATTA CK ( IMP ACT) • Sniff data frames • Modify the traffic • Stop the traffic (denial of services) y3 dips | RITECH 2007
  12. 12. Arp Atta ck (to ols) • ArpSpoof.c • Nemesis • Dsniff • Ettercap-NG • Cain & Abel • etc … y3 dips | RITECH 2007
  13. 13. y3 dips | RITECH 2007
  14. 14. y3 dips | RITECH 2007
  15. 15. STAND TALL AS A HUMAN http://www-user.tu-chemnitz.de/~fri/test/Evolution-man.jpg y3 dips | RITECH 2007
  16. 16. DEFEN CE AS A HUMA N • Ubuntu GNU/Linux • Arpwatch • Swatch • Perl-gtk • arpWall y3 dips | RITECH 2007
  17. 17. UBU NTU • Ubuntu is an African word meaning ‘Humanity to others‘ • Community developed • Debian GNU/linux-based operating system • 2004 (4.10/warty) • Been number 1 for a long time y3 dips | RITECH 2007
  18. 18. ARPWA TCH • Monitors mac adresses on your network and writes them into a file • http://freequaos.host.sk/arpwatch/ – Latest release arpwatch NG 1.7 • Sudo apt-get install arpwatch y3 dips | RITECH 2007
  19. 19. y3 dips | RITECH 2007
  20. 20. SWA TCH • The active log file monitoring tool • http://swatch.sourceforge.net/ – Latest rilis version 3.2.1 • Sudo apt-get install swatch y3 dips | RITECH 2007
  21. 21. y3 dips | RITECH 2007
  22. 22. GTK2-P ER L • The collective name for a set of perl bindings for Gtk+ 2.x and various related libraries • These modules make it easy to write Gtk and Gnome applications • http://gtk2-perl.sourceforge.net/ y3 dips | RITECH 2007
  23. 23. y3 dips | RITECH 2007
  24. 24. AR PW ATCH SWAT CH GTK 2-PE RL + ? y3 dips | RITECH 2007
  25. 25. y3 dips | RITECH 2007
  26. 26. ARPWA LL • This tools will give an early warning when arp attack occurs and will simply block the connection • http://arpwall.sf.net (ver 0.0.1) • Based on arpwall + swatch + gtk2perl • Need time? And idea? y3 dips | RITECH 2007
  27. 27. y3 dips | RITECH 2007
  28. 28. SH OR TCUT • Set Static Arp Table • Sudo arp –s [ip] [mac address] • Would be a problem • Still Not 100% surely Secure y3 dips | RITECH 2007
  29. 29. y3 dips | RITECH 2007
  30. 30. CONCL USION • Fix MAC for each device port • Using another good Authentication than using MAC address • Good Network Configuration • Segmentation (e.g VLAN) • Monitoring machine y3 dips | RITECH 2007
  31. 31. CONCL USION ( END USER ) • Using arpwatch-ng, X-arp, arp-guard, or other arp-defend-application • using Secure connection (SSL, SSH, IPSec) even still potentially attacked y3 dips | RITECH 2007
  32. 32. THAT S ALL FOL KZ Have Somethin to Discuss? (talk talk talk) y3 dips | RITECH 2007

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