MS13-052: Vulnerabilities in .NET Framework and Silverlight Could Allow Remote Code Execution (2861561)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The .NET Framework install on the remote Windows host could allow
arbitrary code execution.

Description :

The version of the .NET Framework installed on the remote host is
reportedly affected by the following vulnerabilities :

- A vulnerability exists in the way that affected
components handle specially crafted TrueType font
files that could lead to remote code execution. An
attacker could leverage this issue by enticing a user
to open a specially crafted TrueType font file.
(CVE-2013-3129)

- The .NET Framework does not properly handle
multidimensional arrays of small structures, which
could lead to remote code execution. (CVE-2013-3131)

- The .NET Framework does not properly validate the
permissions of certain objects performing reflection.
This could allow an attacker to elevate their privileges
and take complete control of the system.
(CVE-2013-3132)

- The .NET Framework does not properly validate the
permissions of objects involved with reflection, which
could lead to an elevation of privileges.
(CVE-2013-3133)

- The .NET Framework is affected by a remote code
execution vulnerability due to the way in which it
allocates arrays of small structures. (CVE-2013-3134)

- The .NET Framework does not properly validate the
permissions for delegate objects during serialization,
which could lead to an elevation of privileges.
(CVE-2013-3171)

- Microsoft Silverlight does not properly handle null
pointers, which could lead to remote code execution.
(CVE-2013-3178)

An attacker may be able to leverage these vulnerabilities to execute
arbitrary code on the affected system if a user can be tricked into
viewing a specially crafted web page using a web browser that can run
XAML Browser Applications (XBAPs) or Silverlight applications.

See also :

http://technet.microsoft.com/en-us/security/bulletin/ms13-052

Solution :

Microsoft has released a set of patches for .NET Framework 1.0, 1.1,
2.0, 3.0, 3.5, 3.5.1, 4.0, and 4.5 as well as Silverlight 5.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.9
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 67209 ()

Bugtraq ID: 60932
60933
60934
60935
60937
60938
60978

CVE ID: CVE-2013-3129
CVE-2013-3131
CVE-2013-3132
CVE-2013-3133
CVE-2013-3134
CVE-2013-3171
CVE-2013-3178