The default configuration of ASP.NET in Microsoft .NET before 1.1 has a value of FALSE for the EnableViewStateMac property, which allows remote attackers to conduct cross-site scripting (XSS) attacks via the __VIEWSTATE parameter.
- http://www.blackhat.com/presentations/bh-dc-10/Byrne_David/BlackHat-DC-2010-Byrne-SGUI-slides.pdf
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