Plain text password for Microsoft (icwip.dun)

From: Steven Jones (bigpoopat_private)
Date: Tue Jul 09 2002 - 04:27:15 PDT

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    24 june 2002
    ------------
    
    Username, password + free phone number for microsoft (distributed with 
    IE 5 + 6)
    ------------------------------------------------------------------------
    --------
    Discovered By: Big poop rootat_private
    
    
    Untested: IE 4
    	  Mac versions of IE
    
    
    Vulnerable Files
    ----------------
    icwip.dun, icwx25a.dun, icwx25b.dun, icwx25c.dun 
    The above files contain a username and password stored in plaintext for 
    microsoft.com (found 19/june/2002)
    
    phone.icw - contains numerous free phone numbers for above user name 
    and password
    
    
    Other vulnerable files not installed but sometimes downloaded from ISP'
    s 
    ------------------------------------------------------------------------
    
    *.isp / *.ins - The internet communication setting file also stores 
    user name and passwords in plain text (well known fact, i'm probably 
    not the first to notice this)
    
    
    Details
    -------
    
    When a user wishes to access the internet but doesn't have a specific 
    ISP in mind a user a can use microsofts connection wizzard to download 
    a list of ISPs. This wizzard dials to a free phone number stored in 
    phone.icw and then uses one of the icw*.dun files to authenicate itself 
    to the network (depending on where in the world you are depends on 
    which icw*.dun dile is used) Under normal circumstances the connection 
    wizzard connects to ispreferals.microsoft.com (207.46.152.15) and 
    downloads a list of local ISP's via series of cab files stored in 
    various 4 letter directories on the server. The username stored in the 
    icw*.dun file is "icw5at_private" and the password is "icw5". 
    One of the dial up servers connected to was tnt59.lnd1.uk.uudial.net. 
    As you can see this is not a microsoft machine but it does allow you to 
    access various microsoft machines. (If you are in the UK you connect to 
    the science park in Cambridge, one of Microsofts research centers). 
    
    Recommendations
    ---------------
    Store passwords in an encrypted form
    
    --
    Big Poop
    rootat_private
    



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