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[Weechat-dev] [bug #26571] /ban $nick is EXTREMELY easy to evade

From: JD
Subject: [Weechat-dev] [bug #26571] /ban $nick is EXTREMELY easy to evade
Date: Thu, 14 May 2009 07:56:18 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/2009042113 Ubuntu/8.04 (hardy) Firefox/3.0.9


                 Summary: /ban $nick is EXTREMELY easy to evade
                 Project: Wee Enhanced Environment for Chat
            Submitted by: jdhore
            Submitted on: Thu 14 May 2009 07:56:17 AM GMT
                Category: irc plugin
                Severity: 3 - Normal
              Item Group: irc protocol
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 0.2.6
                IRC nick: jdhore



/ban $nick is very easy to evade. In fact, it's as simple as parting the
channel, doing /nick some-other-nick and re-joining.

Currently it makes the ban:

(Which bans the nick only)

My 2 suggestions are to either have it ban:




The latter can't be evaded without the user disconnecting from the server,
changing the username in their IRC client's settings and
reconnecting/rejoining (or using a shell/proxy, of course). The former can't
be evaded in any circumstance in many cases, or in a few, can only be evaded
by the user using a shell, a proxy or resetting their DSL modem.


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