MS12-038 - Critical : Vulnerability in .NET Framework Could Allow Remote Code Execution (2706726) -

Discussion in 'Security Alerts' started by News, Jun 25, 2012.

  1. News

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    Severity Rating: Critical
    Revision Note: V1.0 (June 12): Bulletin published.
    Summary: This security update resolves one privately reported vulnerability in the Microsoft .NET Framework. The vulnerability could allow remote code execution on a client system if a user views a specially crafted webpage using a web browser that can run XAML Browser Applications (XBAPs). Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The vulnerability could also be used by Windows .NET Framework applications to bypass Code Access Security (CAS) restrictions. In a web browsing attack scenario, an attacker could host a website that contains a webpage that is used to exploit this vulnerability. In addition, compromised websites and websites that accept or host user-provided content or advertisements could contain specially crafted content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these websites. Instead, an attacker would have to convince users to visit the website, typically by getting them to click a link in an email message or Instant Messenger message that takes users to the attacker's website.

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