Re: icq DOS / possible "stupid user" vulnerability.

From: fvw (fvwat_private)
Date: Mon Mar 29 1999 - 09:47:19 PST

  • Next message: Darren Reed: "Re: Possible security hole"

    Even doing a http "GET ......." (with a lot more periods) will crash the
    icq 'webserver'.
    
    Mind you, ICQ has always had a high "DOSability factor".
    
    On Mon, 29 Mar 1999, Ronald A. Jarrell wrote:
    > Ok, I was a bit surprised when, in playing with the new ICQ99a build 1700 v2.13
    > client (which I believe is the first publicly distributed one of the
    > 99 family), I turned on the "Activate my home page" feature, and turned
    > my laptop into a web server...
    >
    > Complete with a file server that allows by default anything in the
    > "program files\icq\homepage\root\YOUR#\files" folder to be requested.
    > Even set up a guest book, chat service, etc...
    >
    > After getting over being astonished (yea, they said "turning this on
    > might increase people's access to your machine, and tell them your
    > ip address" - of course it will.  You're setting up a bloody web server
    > you idiots.  A bad one at that.) I naturally started doing some poking.
    >
    > Telnet to your port 80, and enter some non http gibberish.  I tried
    > "quit<cr>" for grins.  Blam.  Down goes the ICQ client with a GPF.
    > Got someone else to turn theirs on, and sure enough, managed to shoot
    > him down too.
    >
    > I warned Mirabilis about it.  Folks at institutions that worry about
    > such things, but let their employees run ICQ might want to be aware
    > that said employees might well be running web servers now and not
    > evening know it.  On you ICQ contact list, if they're on it, said
    > users show up with a little house next to their name.
    >
    > --
    > Ron Jarrell
    > VA Tech Computing Center
    --
    
    			Frank v Waveren
    			fvwat_private
    			ICQ# 10074100
    



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