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MS10-070 - Important: Vulnerability in ASP.NET Could Allow Information Disclosure (2418042) - Version:4.0

Posted on 23 February 2011

There is an newer version: MS10-070 - Version: 4.2

Important

Severity Rating: Important - Revision Note: V4.0 (February 22, 2011): Announced a detection change to offer the Microsoft .NET Framework 4.0 (KB2416472) update packages to customers who install Microsoft .NET Framework 4.0 after installing Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1, or Windows Server 2008 R2 for Itanium-based Systems Service Pack 1. Customers who have already successfully updated their systems do not need to take any action.Summary: This security update resolves a publicly disclosed vulnerability in ASP.NET. The vulnerability could allow information disclosure. An attacker who successfully exploited this vulnerability could read data, such as the view state, which was encrypted by the server. This vulnerability can also be used for data tampering, which, if successfully exploited, could be used to decrypt and tamper with the data encrypted by the server. Microsoft .NET Framework versions prior to Microsoft .NET Framework 3.5 Service Pack 1 are not affected by the file content disclosure portion of this vulnerability.

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