[Bug-gnubg] Bot Abuse

[Rod Roark]

Is your FIBS robot vulnerable to this attack?

(1) Start a new match against the bot.

(2) If you are winning the match, finish it and go to (1).

(3) Drop the match that you are about to lose.

(4) Send the bot "invite botname" followed immediately by
    "invite botname 7".

(5) The bot thinks you are resuming the match and sends
    "join yourname", however in the meantime FIBS cancels
    the first invitation and replaces it with the second.
    The bot just allowed you to start a new match.

(6) Start playing your brand-new match and go to (2).

Suggested defense: Don't use "join" to respond to an
invitation to resume a match.  Use "invite" instead.

-- Rod