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Capture the Flag - Root Fu - Root Fu Rulez of Engagement
Vegas 2003 @ DEFCON 11

Hosted by the Ghetto Hackers

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Game play

  • Several teams are connected to a central router and scoring system
  • Each team has one host to defend and keep running
  • Teams attempt to hack each other in order to score faster
  • Highest total credits at the end of the contest wins

Scoring

  • Every few minutes, the scoreboard simulates honest user interaction with each host.
  • Each host is rated Up or Down and then queried for a team-specific key file
  • To score any points in a given period, a team's host must be Up.
  • A team scores one credit for every host that is Up and responds with their key.
  • Teams are severely penalized for using more bandwidth than other teams.
  • Points do not follow defectors who change teams

Hosts

  • Teams will be given identical ready-to-run x86 distributions to host.
  • The distro contains many scripts and services that the scoring system relies upon.
  • Teams can choose to port, upgrade or replace the services.
  • Any action that causes the scoring system to dislike a host is exclusively the fault of that team and will result in lost scoring opportunities.
  • No mulligans, time-outs, make-ups or do-overs will be granted for mistakes.

Scoreboard

  • The scoreboard reflects the street *opinion* of a team's performance
  • Recent performance sways opinion more than past performance
  • Numbers on the scoreboard are not necessarily in line with the final scores.

Courtesy

  • Don't whine
  • No physical coersion. This is still a game.
  • Denial of bandwidth will be punished by the scoring system.
  • Denial of service is only acceptable if it directly helps the attacker gain root.
  • All patches to open-source software must be published on your host's FTP server.
  • All commercial software used must be accompanied by proper license.

Judgement

  • The staff reserves the right to make final judgement on any matter in question. Their authority is final.
  • Team leaders should feel free to work together with the contest staff to resolve any disputes that arise.

Tips, tricks and hints

  • Learn what your distribution does before you try to replace it.
  • Use the scoreboard to get a sense of whether you're doing the right or wrong thing.
  • Have a team manager who keeps information flowing in your team.
  • Dedicate a skilled person to monitoring the network.
  • Secure your physical assets


This page last updated on: Thursday, June 5, 2003

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