module

MS11-003 Microsoft Internet Explorer CSS Recursive Import Use After Free

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Disclosed
2010-11-29
Created
2018-05-30

Description

This module exploits a memory corruption vulnerability within Microsoft\'s
HTML engine (mshtml). When parsing an HTML page containing a recursive CSS
import, a C++ object is deleted and later reused. This leads to arbitrary
code execution.

This exploit utilizes a combination of heap spraying and the
.NET 2.0 'mscorie.dll' module to bypass DEP and ASLR. This module does not
opt-in to ASLR. As such, this module should be reliable on all Windows
versions with .NET 2.0.50727 installed.

Authors

passerby
d0c_s4vage
jduck jduck@metasploit.com

Platform

Windows

References

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/ms11_003_ie_css_import
    msf exploit(ms11_003_ie_css_import) > show targets
        ...targets...
    msf exploit(ms11_003_ie_css_import) > set TARGET < target-id >
    msf exploit(ms11_003_ie_css_import) > show options
        ...show and set options...
    msf exploit(ms11_003_ie_css_import) > exploit
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