179 lines
4.6 KiB
Ruby
179 lines
4.6 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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require 'rex/proto/http'
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require 'pathname'
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class MetasploitModule < Msf::Auxiliary
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include Msf::Exploit::Remote::HttpClient
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include Msf::Auxiliary::WmapScanFile
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include Msf::Auxiliary::Scanner
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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' => 'HTTP File Extension Scanner',
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'Description' => %q{
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This module identifies the existence of additional files
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by modifying the extension of an existing file.
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},
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'Author' => [ 'et [at] cyberspace.org' ],
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'License' => BSD_LICENSE))
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register_options(
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[
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OptString.new('PATH', [ true, "The path/file to identify additional files", '/default.asp']),
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])
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register_advanced_options(
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[
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OptInt.new('ErrorCode', [ true, "The expected http code for non existant files", 404]),
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OptPath.new('HTTP404Sigs', [ false, "Path of 404 signatures to use",
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File.join(Msf::Config.data_directory, "wmap", "wmap_404s.txt")
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]
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),
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OptBool.new('NoDetailMessages', [ false, "Do not display detailed test messages", true ])
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])
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end
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def run_host(ip)
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conn = false
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dm = datastore['NoDetailMessages']
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extensions= [
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'.bak',
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'.txt',
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'.tmp',
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'.old',
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'.htm',
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'.ini',
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'.cfg',
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'.html',
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'.php',
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'.temp',
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'.tmp',
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'.java',
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'.doc',
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'.log',
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'.xml'
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]
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tpathfile = Pathname.new(datastore['PATH'])
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oldext = tpathfile.extname
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tpathnoext = tpathfile.to_s[0..(datastore['PATH'].rindex(oldext)-1)]
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#print_status ("Old extension: #{oldext}")
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extensions.each { |testext|
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if oldext == testext
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next
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end
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#print_status ("Test extension: #{testext}")
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#
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# Detect error code. This module is a special case as each extension
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# usually is handled diferently by the server with different error codes
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#
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ecode = datastore['ErrorCode'].to_i
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begin
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randchars = Rex::Text.rand_text_alpha(3).chomp
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tpath = tpathnoext+randchars+testext
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res = send_request_cgi({
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'uri' => tpath,
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'method' => 'GET',
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'ctype' => 'text/html'
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}, 20)
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return if not res
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tcode = res.code.to_i
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emesg = ""
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# Look for a string we can signature on as well
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if(tcode >= 200 and tcode <= 299)
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File.open(datastore['HTTP404Sigs'], 'rb').each do |str|
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if(res.body.index(str))
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emesg = str
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break
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end
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end
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if(not emesg)
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print_status("Using first 256 bytes of the response as 404 string for #{testext} files.")
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emesg = res.body[0,256]
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else
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print_status("Using custom 404 string of '#{emesg}' for #{testext} files.")
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end
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else
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ecode = tcode
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print_status("Using code '#{ecode}' as not found for #{testext} files.")
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end
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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conn = false
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rescue ::Timeout::Error, ::Errno::EPIPE
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end
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#if not conn return
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begin
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tpath = tpathnoext+testext
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res = send_request_cgi({
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'uri' => tpath,
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'method' => 'GET',
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'ctype' => 'text/plain'
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}, 20)
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if(not res or ((res.code.to_i == ecode) or (emesg and res.body.index(emesg))))
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if dm == false
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print_status("NOT Found #{wmap_base_url}#{tpath} #{res.code.to_i}")
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end
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else
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if res.code.to_i == 400 and ecode != 400
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print_error("Server returned an error code. #{wmap_base_url}#{tpath} #{res.code.to_i}")
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else
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print_good("Found #{wmap_base_url}#{tpath}")
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report_web_vuln(
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:host => ip,
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:port => rport,
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:vhost => vhost,
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:ssl => ssl,
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:path => tpath,
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:method => 'GET',
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:pname => "",
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:proof => "Res code: #{res.code.to_s}",
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:risk => 0,
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:confidence => 100,
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:category => 'file',
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:description => 'File found.',
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:name => 'file'
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)
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end
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end
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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rescue ::Timeout::Error, ::Errno::EPIPE
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end
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}
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end
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end
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