sinn3r
c3db41334b
In IE8 standards mode, it's possible to cause a use-after-free condition by first creating an illogical table tree, where a CPhraseElement comes after CTableRow, with the final node being a sub table element. When the CPhraseElement's outer content is reset by using either outerText or outerHTML through an event handler, this triggers a free of its child element (in this case, a CAnchorElement, but some other objects apply too), but a reference is still kept in function SRunPointer::SpanQualifier. This function will then pass on the invalid reference to the next functions, eventually used in mshtml!CElement::Doc when it's trying to make a call to the object's SecurityContext virtual function at offset +0x70, which results a crash. An attacker can take advantage of this by first creating an CAnchorElement object, let it free, and then replace the freed memory with another fake object. Successfully doing so may allow arbitrary code execution under the context of the user. This bug is specific to Internet Explorer 8 only. It was originally discovered by Orange Tsai at Hitcon 2013, but was silently patched in the July 2013 update, so no CVE as of now.
Metasploit 
The Metasploit Framework is released under a BSD-style license. See COPYING for more details.
The latest version of this software is available from http://metasploit.com/
Bug tracking and development information can be found at: https://dev.metasploit.com/redmine/projects/framework/
The public GitHub source repository can be found at: https://github.com/rapid7/metasploit-framework
Questions and suggestions can be sent to: msfdev(at)metasploit.com
The framework mailing list is the place to discuss features and ask for help. To subscribe, visit the following web page: https://mail.metasploit.com/mailman/listinfo/framework
The mailing list archives are available from: https://mail.metasploit.com/pipermail/framework/
Installing
Generally, you should use the installer which contains all dependencies and will get you up and running with a few clicks. See the Dev Environment Setup if you'd like to deal with dependencies on your own.
Using Metasploit
Metasploit can do all sorts of things. The first thing you'll want to do
is start msfconsole, but after that, you'll probably be best served by
reading some of the great tutorials online:
Contributing
See the Dev Environment Setup guide on GitHub which will walk you through the whole process starting from installing all the dependencies, to cloning the repository, and finally to submitting a pull request. For slightly more info, see Contributing.