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MS13-022 Microsoft Silverlight ScriptObject Unsafe Memory Access

This module exploits a vulnerability in Microsoft Silverlight. The vulnerability exists on the Initialize() method from System.Windows.Browser.ScriptObject, which access memory in an unsafe manner. Since it is accessible for untrusted code (user controlled) it's possible to dereference arbitrary memory which easily leverages to arbitrary code execution. In order to bypass DEP/ASLR a second vulnerability is used, in the public WriteableBitmap class from System.Windows.dll. This module has been tested successfully on IE6 - IE10, Windows XP SP3 / Windows 7 SP1.

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Module Name

exploit/windows/browser/ms13_022_silverlight_script_object

Authors

  • James Forshaw
  • Vitaliy Toropov
  • juan vazquez <juan.vazquez [at] metasploit.com>

References

Targets

  • Windows x86/x64

Platforms

  • windows

Architectures

  • x86

Reliability

Development

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/windows/browser/ms13_022_silverlight_script_object msf exploit(ms13_022_silverlight_script_object) > show targets ...targets... msf exploit(ms13_022_silverlight_script_object) > set TARGET <target-id> msf exploit(ms13_022_silverlight_script_object) > show options ...show and set options... msf exploit(ms13_022_silverlight_script_object) > exploit

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