[PCWorks] Microsoft .NET Framework WinForms Callback Handling Vulnerability
- From: "Clint Hamilton-PCWorks Admin" <PCWorks@xxxxxxxxxxxxxxxxxxxxxxxx>
- To: "PCWorks@xxxxxxxxxxxxx" <pcworks@xxxxxxxxxxxxx>
- Date: Wed, 13 Feb 2013 00:22:14 -0600
TITLE:
Microsoft .NET Framework WinForms Callback Handling
Vulnerability
Criticality level: Highly critical
Impact: System access
Where: From remote
Software:
Microsoft .NET Framework 2.x
Microsoft .NET Framework 3.x
Microsoft .NET Framework 4.x
SECUNIA ADVISORY ID:
http://secunia.com/advisories/52143/
DESCRIPTION:
A vulnerability has been reported in Microsoft .NET Framework,
which
can be exploited by malicious people to compromise a user's
system.
The vulnerability is caused due to an error when handling
permissions
of a callback function when a certain WinForm object is created
and
can be exploited to bypass CAS (Code Access Security)
restrictions
via a specially crafted XAML Browser Application (XBAP) or an
untrusted .NET application.
Successful exploitation allows execution of arbitrary code.
SOLUTION:
Apply updates.
ORIGINAL ADVISORY:
MS13-015 (KB2789642, KB2789643, KB2789644, KB2789645,
KB2789646,
KB2789648, KB2789649, KB2789650):
http://technet.microsoft.com/en-us/security/bulletin/ms13-015
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