metasploit-framework/modules/post/multi/gather/dns_bruteforce.rb

107 lines
2.8 KiB
Ruby

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Post
def initialize(info = {})
super(
update_info(
info,
'Name' => 'Multi Gather DNS Forward Lookup Bruteforce',
'Description' => %q{
Brute force subdomains and hostnames via wordlist.
},
'License' => MSF_LICENSE,
'Author' => [ 'Carlos Perez <carlos_perez[at]darkoperator.com>'],
'Platform' => %w[bsd linux osx solaris win],
'SessionTypes' => [ 'meterpreter', 'shell' ]
)
)
register_options(
[
OptString.new('DOMAIN', [true, 'Domain to do a forward lookup bruteforce against.']),
OptPath.new('NAMELIST', [
true, 'List of hostnames or subdomains to use.',
::File.join(Msf::Config.data_directory, 'wordlists', 'namelist.txt')
])
]
)
end
# Run Method for when run command is issued
def run
domain = datastore['DOMAIN']
hostlst = datastore['NAMELIST']
a = []
print_status("Performing DNS Forward Lookup Bruteforce for Domain #{domain}")
name_list = []
if ::File.exist?(hostlst)
::File.open(hostlst).each do |n|
name_list << n
end
end
case session.platform
when 'windows'
cmd = 'nslookup'
when 'solaris'
cmd = '/usr/sbin/host '
else
cmd = '/usr/bin/host '
end
while !name_list.nil? && !name_list.empty?
1.upto session.max_threads do
a << framework.threads.spawn("Module(#{refname})", false, name_list.shift) do |n|
next if n.nil?
vprint_status("Trying #{n.strip}.#{domain}")
r = cmd_exec(cmd, "#{n.strip}.#{domain}")
case session.platform
when 'windows'
proccess_win(r, "#{n.strip}.#{domain}")
else
process_nix(r, "#{n.strip}.#{domain}")
end
end
a.map(&:join)
end
end
end
# Process the data returned by nslookup
def proccess_win(data, ns_opt)
if data =~ /Name/
# Remove unnecessary data and get the section with the addresses
returned_data = data.split(/Name:/)[1]
# check each element of the array to see if they are IP
returned_data.gsub(/\r\n\t |\r\n|Aliases:|Addresses:/, ' ').split(' ').each do |e|
if Rex::Socket.dotted_ip?(e)
print_good("#{ns_opt} #{e}")
report_host(host: e, name: ns_opt.strip)
end
end
end
end
# Process the data returned by the host command
def process_nix(r, ns_opt)
r.each_line do |l|
data = l.scan(/(\S*) has address (\S*)$/)
next if data.empty?
data.each do |e|
print_good("#{ns_opt} #{e[1]}")
report_host(host: e[1], name: ns_opt.strip)
end
end
end
end