133 lines
4.0 KiB
Ruby
133 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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require "net/dns/resolver"
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require 'rex'
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class Metasploit3 < Msf::Auxiliary
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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' => 'DNS Brutefoce Enumeration',
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'Description' => %q{
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This module uses a dictionary to perform a bruteforce attack to enumerate
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hostnames and subdomains available under a given domain.
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},
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'Author' => [ 'Carlos Perez <carlos_perez[at]darkoperator.com>' ],
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'License' => BSD_LICENSE
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))
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register_options(
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[
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OptString.new('DOMAIN', [ true, "The target domain name"]),
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OptAddress.new('NS', [ false, "Specify the name server to use for queries, otherwise use the system DNS" ]),
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OptPath.new('WORDLIST', [ true, "Wordlist file for domain name brute force.",
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File.join(Msf::Config.data_directory, "wordlists", "namelist.txt")])
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], self.class)
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register_advanced_options(
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[
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OptInt.new('RETRY', [ false, "Number of tries to resolve a record if no response is received.", 2]),
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OptInt.new('RETRY_INTERVAL', [ false, "Number of seconds to wait before doing a retry.", 2]),
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OptInt.new('THREADS', [ true, "Number of threads", 1])
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], self.class)
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end
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def run
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print_status("Enumerating #{datastore['DOMAIN']}")
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@res = Net::DNS::Resolver.new()
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@res.retry = datastore['RETRY'].to_i unless datastore['RETRY'].nil?
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@res.retry_interval = datastore['RETRY_INTERVAL'].to_i unless datastore['RETRY_INTERVAL'].nil?
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wildcard(datastore['DOMAIN'])
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switchdns() unless datastore['NS'].nil?
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dnsbrt(datastore['DOMAIN'])
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end
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def wildcard(target)
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rendsub = rand(10000).to_s
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query = @res.query("#{rendsub}.#{target}", "A")
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if query.answer.length != 0
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print_status("This Domain has wild-cards enabled!!")
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query.answer.each do |rr|
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print_warning("Wild-card IP for #{rendsub}.#{target} is: #{rr.address.to_s}") if rr.class != Net::DNS::RR::CNAME
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end
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return true
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else
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return false
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end
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end
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def get_ip(host)
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results = []
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query = @res.search(host, "A")
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if (query)
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query.answer.each do |rr|
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if rr.type == "CNAME"
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results = results + get_ip(rr.cname)
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else
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record = {}
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record[:host] = host
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record[:type] = "AAAA"
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record[:address] = rr.address.to_s
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results << record
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end
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end
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end
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query1 = @res.search(host, "AAAA")
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if (query1)
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query1.answer.each do |rr|
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if rr.type == "CNAME"
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results = results + get_ip(rr.cname)
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else
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record = {}
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record[:host] = host
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record[:type] = "AAAA"
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record[:address] = rr.address.to_s
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results << record
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end
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end
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end
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return results
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end
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def switchdns()
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print_status("Using DNS server: #{datastore['NS']}")
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@res.nameserver=(datastore['NS'])
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@nsinuse = datastore['NS']
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end
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def dnsbrt(domain)
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print_status("Performing bruteforce against #{domain}")
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queue = []
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File.open(datastore['WORDLIST'], 'rb').each_line do |testd|
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queue << testd.strip
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end
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while(not queue.empty?)
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tl = []
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1.upto(datastore['THREADS']) do
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tl << framework.threads.spawn("Module(#{self.refname})-#{domain}", false, queue.shift) do |testf|
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Thread.current.kill if not testf
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vprint_status("Testing #{testf}.#{domain}")
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get_ip("#{testf}.#{domain}").each do |i|
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print_good("Host #{i[:host]} with address #{i[:address]} found")
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report_host(
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:host => i[:address].to_s,
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:name => i[:host].gsub(/\.$/,'')
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)
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end
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end
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end
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if(tl.length == 0)
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break
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end
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tl.first.join
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tl.delete_if { |t| not t.alive? }
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end
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end
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end
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