RE: Rather large MSIE-hole

From: Maarten Oosterink (maartenat_private)
Date: Thu Mar 14 2002 - 04:27:31 PST

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    > >For instance, "%SystemRoot%" would eliminate the need for 
    > >"C:\windows"
    
    I tried this in the original sample provided by Magnus Bodin, it
    doesn't work, I recogn the variables aren't parsed. Maybe with
    more Jscript knowledge it is possible however.
    
    The same with parameters btw.. Trying to run 
    'c:/windows/system32/format.com c: /q /autotest' fails and so
    does 'c:/windows/system32/cmd -C format.com c: /q /autotest'.
    
    This is good, since this vulnerability can not be easily used for
    creating real havoc. But as soon as someone finds out how to parse
    parameters the sh*t will hit the fan.. I can image commands like
    'net send * w00t w00t' being funny, but 'format c: /autotest' isn't.
    
    > This is a newbie question, 
    > but where can I find a list os system variables and its
    > compatibility thru versions of windows?
    
    By running SET from a command shell (without parameters) you het
    a list of all system variables.
    
    With regards,
    
    Maarten Oosterink
    System Administrator Digital Technology dpt.
    Netherlands Forensic Institute
    Ministry of Justice - The Netherlands
    
    Phone    +31 (0)70 413 5 402
    Fax      +31 (0)70 413 5 441   
    E-mail   maartenat_private - PGP Key:
    http://www.holmes.nl/maarten.asc
     
    
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