• Close
  • Back to search

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

    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.

    Free Metasploit Download

    Get your copy of the world's leading penetration testing tool

     Download Now

    Module Name



    • passerby
    • d0c_s4vage
    • jduck <jduck [at] metasploit.com>



    • Automatic
    • Internet Explorer 8
    • Internet Explorer 7
    • Internet Explorer 6
    • Debug Target (Crash)


    • windows



    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

    Related Vulnerabilities