[NT] Microsoft IE Devenum.dll COM Instantiation Code Execution

From: SecuriTeam (support_at_securiteam.com)
Date: 08/10/05

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Date: 10 Aug 2005 15:06:28 +0200

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      Microsoft IE Devenum.dll COM Instantiation Code Execution
    ------------------------------------------------------------------------

    SUMMARY

    By crafting a malicious HTML page and alluring users to visit it, a remote
    attacker can execute arbitrary code with the privilege of the user.

    DETAILS

    Vulnerable Systems:
     * Microsoft Internet Explorer 5.01 SP4
     * Microsoft Internet Explorer 5.5 SP2
     * Microsoft Internet Explorer 6
     * Microsoft Internet Explorer 6 SP1

    Internet Explorer does not properly call interface arguments when
    instantiating COM component in devenum.dll, resulting in exceptional
    memory access which might cause IE to crash. Carefully crafted HTML page
    might allow a remote attacker to execute arbitrary code.

    Workaround:
    Disable ActiveX control in Internet Explorer.

    Disclosure Timeline:
    2005.07.13 - Informed the vendor.
    2005.07.16 - The vendor confirmed the vulnerability
    2005.08.09 - The vendor releases a security bulletin (MS05-038) and
    related patches

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:security@nsfocus.com>
    NSFOCUS Security Team.
    The original article can be found at:
    <http://www.nsfocus.com/english/homepage/research/0502.htm>
    http://www.nsfocus.com/english/homepage/research/0502.htm

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