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|
#!/usr/bin/env python3
# DNSRecon Data Parser
#
# Copyright (C) 2012 Carlos Perez
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; Applies version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
__version__ = '0.0.7'
__author__ = 'Carlos Perez, Carlos_Perez@darkoperator.com'
import csv
import getopt
import os
import re
import sys
import xml.etree.ElementTree as cElementTree
from netaddr import *
# Function Definitions
# ------------------------------------------------------------------------------
def print_status(message=''):
print(f'\033[1;34m[*]\033[1;m {message}')
def print_good(message=''):
print(f'\033[1;32m[*]\033[1;m {message}')
def print_error(message=''):
print(f'\033[1;31m[-]\033[1;m {message}')
def print_debug(message=''):
print(f'\033[1;31m[!]\033[1;m {message}')
def print_line(message=''):
print(f'{message}')
def process_range(arg):
"""
This function will take a string representation of a range for IPv4 or IPv6 in
CIDR or Range format and return a list of IPs.
"""
try:
ip_list = None
range_vals = []
if re.match(r'\S*/\S*', arg):
ip_list = IPNetwork(arg)
range_vals.extend(arg.split('-'))
if len(range_vals) == 2:
ip_list = IPNetwork(IPRange(range_vals[0], range_vals[1])).cidrs()[-1]
except Exception:
print_error(f'Range provided is not valid: {arg()}')
return []
return ip_list
def xml_parse(xm_file, ifilter, tfilter, nfilter, list):
"""
Function for parsing XML files created by DNSRecon and apply filters.
"""
iplist = []
for event, elem in cElementTree.iterparse(xm_file):
# Check if it is a record
if elem.tag == 'record':
# Check that it is a RR Type that has an IP Address
if 'address' in elem.attrib:
# Check if the IP is in the filter list of IPs to ignore
if (len(ifilter) == 0 or IPAddress(elem.attrib['address']) in ifilter) and (elem.attrib['address'] != 'no_ip'):
# Check if the RR Type against the types
if re.match(tfilter, elem.attrib['type'], re.I):
# Process A, AAAA and PTR Records
if re.search(r'PTR|^[A]$|AAAA', elem.attrib['type']) and re.search(nfilter, elem.attrib['name'], re.I):
if list:
if elem.attrib['address'] not in iplist:
print(elem.attrib['address'])
else:
print_good(f"{elem.attrib['type']} {elem.attrib['name']} {elem.attrib['address']}")
# Process NS Records
elif re.search(r'NS', elem.attrib['type']) and re.search(nfilter, elem.attrib['target'], re.I):
if list:
if elem.attrib['address'] not in iplist:
iplist.append(elem.attrib['address'])
else:
print_good(f"{elem.attrib['type']} {elem.attrib['target']} {elem.attrib['address']}")
# Process SOA Records
elif re.search(r'SOA', elem.attrib['type']) and re.search(nfilter, elem.attrib['mname'], re.I):
if list:
if elem.attrib['address'] not in iplist:
iplist.append(elem.attrib['address'])
else:
print_good(f"{elem.attrib['type']} {elem.attrib['mname']} {elem.attrib['address']}")
# Process MS Records
elif re.search(r'MX', elem.attrib['type']) and re.search(nfilter, elem.attrib['exchange'], re.I):
if list:
if elem.attrib['address'] not in iplist:
iplist.append(elem.attrib['address'])
else:
print_good(f"{elem.attrib['type']} {elem.attrib['exchange']} {elem.attrib['address']}")
# Process SRV Records
elif re.search(r'SRV', elem.attrib['type']) and re.search(nfilter, elem.attrib['target'], re.I):
if list:
if elem.attrib['address'] not in iplist:
iplist.append(elem.attrib['address'])
else:
print_good(
'{0} {1} {2} {3} {4}'.format(
elem.attrib['type'],
elem.attrib['name'],
elem.attrib['address'],
elem.attrib['target'],
elem.attrib['port'],
)
)
else:
if re.match(tfilter, elem.attrib['type'], re.I):
# Process TXT and SPF Records
if re.search(r'TXT|SPF', elem.attrib['type']):
if not list:
print_good('{0} {1}'.format(elem.attrib['type'], elem.attrib['strings']))
# Process IPs in a list
if len(iplist) > 0:
try:
for ip in filter(None, iplist):
print_line(ip)
except OSError:
sys.exit(0)
def csv_parse(csv_file, ifilter, tfilter, nfilter, list):
"""
Function for parsing CSV files created by DNSRecon and apply filters.
"""
iplist = []
reader = csv.reader(open(csv_file), delimiter=',')
next(reader)
for row in reader:
# Check if IP is in the filter list of addresses to ignore
if ((len(ifilter) == 0) or (IPAddress(row[2]) in ifilter)) and (row[2] != 'no_ip'):
# Check Host Name regex and type list
if re.search(tfilter, row[0], re.I) and re.search(nfilter, row[1], re.I):
if list:
if row[2] not in iplist:
print(row[2])
else:
print_good(' '.join(row))
# Process IPs for target list if available
# if len(iplist) > 0:
# for ip in filter(None, iplist):
# print_line(ip)
def extract_hostnames(file):
host_names = []
hostname_pattern = re.compile('(^[^.]*)')
file_type = detect_type(file)
if file_type == 'xml':
for event, elem in cElementTree.iterparse(file):
# Check if it is a record
if elem.tag == 'record':
# Check that it is a RR Type that has an IP Address
if 'address' in elem.attrib:
# Process A, AAAA and PTR Records
if re.search(r'PTR|^[A]$|AAAA', elem.attrib['type']):
host_names.append(re.search(hostname_pattern, elem.attrib['name']).group(1))
# Process NS Records
elif re.search(r'NS', elem.attrib['type']):
host_names.append(re.search(hostname_pattern, elem.attrib['target']).group(1))
# Process SOA Records
elif re.search(r'SOA', elem.attrib['type']):
host_names.append(re.search(hostname_pattern, elem.attrib['mname']).group(1))
# Process MX Records
elif re.search(r'MX', elem.attrib['type']):
host_names.append(re.search(hostname_pattern, elem.attrib['exchange']).group(1))
# Process SRV Records
elif re.search(r'SRV', elem.attrib['type']):
host_names.append(re.search(hostname_pattern, elem.attrib['target']).group(1))
elif file_type == 'csv':
reader = csv.reader(open(file), delimiter=',')
reader.next()
for row in reader:
host_names.append(re.search(hostname_pattern, row[1]).group(1))
host_names = list(set(host_names))
# Return list with no empty values
return filter(None, host_names)
def detect_type(file):
"""
Function for detecting the file type by checking the first line of the file.
Returns xml, csv or None.
"""
ftype = None
# Get the fist lile of the file for checking
with open(file) as file:
firs_line = file.readline()
# Determine file type based on the fist line content
if re.search('(xml version)', firs_line):
ftype = 'xml'
elif re.search(r'\w*,[^,]*,[^,]*', firs_line):
ftype = 'csv'
else:
raise Exception('Unsupported File Type')
return ftype
def usage():
print(f'Version: {__version__}')
print('DNSRecon output file parser')
print('Usage: parser.py <options>\n')
print('Options:')
print(' -h, --help Show this help message and exit')
print(' -f, --file <file> DNSRecon XML or CSV output file to parse.')
print(' -l, --list Output an unique IP List that can be used with other tools.')
print(' -i, --ips <ranges> IP Ranges in a comma separated list each in formats (first-last)')
print(' or in (range/bitmask) for ranges to be included from output.')
print(' For A, AAAA, NS, MX, SOA, SRV and PTR Records.')
print(' -t, --type <type> Resource Record Types as a regular expression to filter output.')
print(' For A, AAAA, NS, MX, SOA, TXT, SPF, SRV and PTR Records.')
print(' -s, --str <regex> Regular expression between quotes for filtering host names on.')
print(' For A, AAAA, NS, MX, SOA, SRV and PTR Records.')
print(' -n, --name Return list of unique host names.')
print(' For A, AAAA, NS, MX, SOA, SRV and PTR Records.')
sys.exit(0)
def main():
#
# Option Variables
#
ip_filter = []
name_filter = '(.*)'
type_filter = '(.*)'
target_list = False
file = None
names = False
#
# Define options
#
try:
options, args = getopt.getopt(
sys.argv[1:],
'hi:t:s:lf:n',
['help', 'ips=', 'type=', 'str=', 'list', 'file=', 'name'],
)
except getopt.GetoptError as error:
print_error('Wrong Option Provided!')
print_error(error)
return
#
# Parse options
#
for opt, arg in options:
if opt in ('-t', '--type'):
type_filter = arg
elif opt in ('-i', '--ips'):
ipranges = arg.split(',')
for r in ipranges:
ip_filter.extend(process_range(r))
elif opt in ('-s', '--str'):
name_filter = f'({arg})'
elif opt in ('-l', '--list'):
target_list = True
elif opt in ('-f', '--file'):
# Check if the dictionary file exists
if os.path.isfile(arg):
file = arg
else:
print_error(f'File {arg} does not exist!')
exit(1)
elif opt in ('-r', '--range'):
ip_list = []
ip_range = process_range(arg)
if len(ip_range) > 0:
ip_list.extend(ip_range)
else:
sys.exit(1)
elif opt in ('-n', '--name'):
names = True
elif opt in '-h':
usage()
# start execution based on options
if file:
if names:
try:
found_names = extract_hostnames(file)
found_names.sort()
for n in found_names:
print_line(n)
except OSError:
sys.exit(0)
else:
file_type = detect_type(file)
if file_type == 'xml':
xml_parse(file, ip_filter, type_filter, name_filter, target_list)
elif file_type == 'csv':
csv_parse(file, ip_filter, type_filter, name_filter, target_list)
else:
print_error('A DNSRecon XML or CSV output file must be provided to be parsed')
usage()
if __name__ == '__main__':
main()
|
