Basic HTML version of Foils prepared July 6 99

Foil 79 Denial of Service Attacks (2)

From Security Infrastructure fo Electronic Commerce and Internet CPS714 Computational Science Information Track -- June 2 and June 7 99. by Roman Markowski
1 Land Attack
  • November 1997
  • affects many Unix,Windows NT/95, routers and switches
  • uses poorly implemented TCP/IP stack
  • send a TCP SYNC packet
    • destination IP address= source IP address= victim's IP address
    • source port = destination port = available port on victim's machine
  • result: machine crashes
2 Land Attack defense
  • vendor patches
  • anti-spoof filters
in Table To:

© Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

If you have any comments about this server, send e-mail to webmaster@npac.syr.edu.

Page produced by wwwfoil on Tue Jul 6 1999