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    Firefox onreadystatechange Event DocumentViewerImpl Use After Free

    This module exploits a vulnerability found on Firefox 17.0.6, specifically an use after free of a DocumentViewerImpl object, triggered via an specially crafted web page using onreadystatechange events and the window.stop() API, as exploited in the wild on 2013 August to target Tor Browser users.

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    Module Name

    exploit/windows/browser/mozilla_firefox_onreadystatechange

    Authors

    • Nils
    • Unknown
    • w3bd3vil
    • sinn3r <sinn3r [at] metasploit.com>
    • juan vazquez <juan.vazquez [at] metasploit.com>

    References

    Targets

    • Firefox 17 & Firefox 21 / Windows XP SP3

    Platforms

    • windows

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

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