[REVS] Win32 Message Vulnerabilities Redux

From: SecuriTeam (support_at_securiteam.com)
Date: 07/14/03

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    To: list@securiteam.com
Date: 14 Jul 2003 12:50:59 +0200

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      Win32 Message Vulnerabilities Redux
    ------------------------------------------------------------------------

    SUMMARY

    About one year ago, Chris Paget published a pair of papers that described
    fundamental flaws in the way the Microsoft Corp. Windows event model is
    designed. Paget showed how these flaws led to a class of attacks he dubbed
    "Shatter attacks", and claimed that they were both widespread and
    unfixable. The boldness of these claims led to a rash of media coverage of
    this exploit, and a sizeable debate within the security community about
    the accuracy and importance of his claims. In response to the pressure
    exerted by this attention, Microsoft published security bulletin MS02-071
    and an associated patch, which has led many to believe that Shatter
    attacks are no longer possible.

    DETAILS

    iDEFENSE has published a paper written by Oliver Lavery that clarifies
    what the flaws in the Windows event model are, describes a related
    vulnerability that continues to exist in many popular software products
    and suggests ways in which these "unfixable" flaws might be addressed.
    Titled "Win32 Message Vulnerabilities Redux", the paper is available at
    <http://www.idefense.com/idpapers/Shatter_Redux.pdf>
    http://www.idefense.com/idpapers/Shatter_Redux.pdf. The appropriate
    vendors mentioned within received an advance copy of this paper.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:listserv@idefense.com>
    iDEFENSE Labs.

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