Pycon - Python for ethical hackers

Python For Ethical Hackers
Mohammad reza Kamalifard

Ethical Hacker
Penetration Tester

Ethical Hacker
Penetration Tester
Ethical Hacker = Penetration Tester

Why Python?
Easy to learn
Easy to use
Clean syntax and code readability
Rich set of libraries
Tons of tools already written
Rapid prototyping – POC ( proof on concept )

Who is using Python
Core Impact – Comprehensive penetration testing solution
Immunity CANVAS – Exploit development framework
W3AF – Web Application Attack and Audit Framework
Sqlmap – Automatic SQL injection tool
Immunity Debugger – Powerful Debugger
Peach – Fuzzer
Sulley – Fully automated and unattended fuzzing framework
Paimei – Reverse engineering framework
Scapy – Packet manipulation tool

Easy File Handling
>>>
>>>
>>>
>>>

file_add = 'c:/users/reza/desktop/passwords.txt'
file_dis = open(file_add, 'r')
emails = file_dis.readlines()
for email in emails:
print email

shahed_soltani@yahoo.com
sir1_kabir@ymail.com
peyman_dabir@yahoo.com
sanaz808@iran.ir
gity_hashemi@yahoo.com
zeuos63@yahoo.com
seyedali_rezaie@datasec.ir
.
.
.

Requests
Library to deal with HTTP : HTTP for Humans
>>> import requests
>>> requests.get('http://kamalifard.ir')
<Response [200]>
>>> r = _
>>> r.headers
CaseInsensitiveDict({'content-length': '771', 'contentencoding': 'gzip', 'accept-ranges': 'bytes', 'vary': 'AcceptEncoding', 'server': 'Apache/2.2.16 (Debian)', 'last-modified':
'Sat, 21 Sep 2013 05:19:57 GMT', 'etag': '"15b565-62b4e6ddf0165940"', 'date': 'Sun, 27 Oct 2013 14:23:54 GMT',
'content-type': 'text/html'})
>>> r.text
u'<!doctype html>n<html lang="en">n<head>nt<meta
charset="UTF-8">nt<title>Mohammad reza
Kamalifard</title>nt<link rel="stylesheet" href="style.css"
/>nn</head>n<body>nt<div class="wrap">ntt<h1>Mohammad
reza Kamalifard</h1>ntt<p>Software

Basic fuzzer
import requests as req
>>>
>>>
>>>
>>>
>>>
...
...

url = 'http://kamalifard.ir/'
file_add = 'c:/users/reza/desktop/dirss.txt'
file_dis = open(file_add, 'r')
dirs= file_dis.readlines()
for x in dirs:
resp = req.get(url + x)
html = resp.text

hashlib
>>> import hashlib
>>> hashlib.algorithms
('md5', 'sha1', 'sha224', 'sha256', 'sha384',
'sha512')
>>> m = hashlib.md5()
>>> m.update('reza')
>>> m.digest()
'xbbx98xb1xd0xb5#xd5xe7x83xf91Urwx02xb6'
>>> m.hexdigest()
'bb98b1d0b523d5e783f931550d7702b6'
>>>

Sockets
• TCP and UDP Sockets
• Regular Servers and Clients
• Raw Sockets
• Sniffing and Injection

Port Scanner
import socket
def connScan(tgtHost, tgtPort):
try:
tcp_socket = socket.socket(socket.AF_INET,
socket.SOCK_STREAM)
tcp_socket.connect((tgtHost, tgtPort))
tcp_socket.send(‘PyCon2013rn')
results = tcp_socket.recv(100)
print '%d/tcp open' % tgtPort
print str(results)
except:
print '%d/tcp closed' % tgtPort
finally:
tcp_socket.close()

ECHO Server
import socket
tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
tcp_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
tcp_socket.bind(('127.0.0.1', 8000))
tcp_socket.listen(2)
print 'Waiting for client ...'
(client, (ip, port)) = tcp_socket.accept()
print 'Revived connection from : ', ip
print 'Starting ECHO output...'
data = 'dummy'
while len(data):
data = client.recv(2048)
print 'Client send : ', data
client.send(data)
client.close()

Client
import socket
import sys
if len(sys.argv) < 3 :
print 'Please Enter address and port'
sys.exit()
tcp_socket = socket.socket(socket.AF_INET,
socket.SOCK_STREAM)
tcp_socket.connect((sys.argv[1], int(sys.argv[2])))
while True:
userInput = raw_input('Please Enter a Message! : ')
tcp_socket.send(userInput)
print 'Server Send back : ' +
str(tcp_socket.recv(2048))
tcp_socket.close()

-----Client----python client.py 127.0.0.1 8000
Please Enter a Message! : Salam
Server Send back : Salam
Please Enter a Message! : WELCOME TO PYCON 2013!
Server Send back : WELCOME TO PYCON 2013!
Please Enter a Message! :
-----Server----Waiting for client ...
Revived connection from : 127.0.0.1
Starting ECHO output...
Client send : Salam
Client send : WELCOME TO PYCON 2013!
Client send :
Closing Connection

SocketServer Framework
• Framework in Python to create TCP and UDP servers
• Does all the basic steps for you in the background
• Comes in handy if you want to create a server to lure a

client and
• analyze its behavior

SocketServer Framework
import SocketServer
class EchoHandler(SocketServer.BaseRequestHandler):
def handle(self):
print 'Got Connection from : ', self.client_address
data = 'dummy'
while len(data):
data = self.request.recv(1024)
print 'Client sent :' + data
self.request.send(data)
print 'client left‘
server_address = ('127.0.0.1', 9050)
server = SocketServer.TCPServer(server_address, EchoHandler)
server.serve_forever()

Nmap
import nmap
tgtHost = '192.168.1.254'
tgtPort = '80'
nmapScan = nmap.PortScanner()
nmapScan.scan(tgtHost, tgtPort)
state=nmapScan[tgtHost]['tcp'][int(tgtPort)]['state']
print tgtHost + ' tcp/' +tgtPort + ' ' +state

Simple HTTP Server
import SocketServer
import SimpleHTTPServer
httpServer = SocketServer.TCPServer(('', 8080),
SimpleHTTPServer.SimpleHTTPRequestHandler)
httpServer.serve_forever()

Raw Sockets
import struct, socket, binascii
rawSocket = socket.socket(socket.PF_PACKET, socket.SOCK_RAW,
socket.htons(0x800))
pkt = rawSocket.recvfrom(2048)
ethernetHeader = pkt[0][0:14]
eth_hdr = struct.unpack('!6s6s2s', ethernetHeader)
binascii.hexlify(eth_hdr[0])
ipHeader = pkt[0][14:34]
ip_hdr = struct.unpack('!12s4s4s', ipHeader)
print 'Source IP address : ' + socket.inet_ntoa(ip_hdr[1])
print 'Destination IP address : ' + socket.inet_ntoa(ip_hdr[2])
tcpHeader = pkt[0][34:54]
tcp_hdr = struct.unpack('!HH16s', tcpHeader)

Packet Injection with Raw Sockets
import socket
import struct
rawSocket = socket.socket(socket.PF_PACKET,
socket.SOCK_RAW,
socket.htons(0x800))
rawSocket.bind(('wlan0', socket.htons(0x800)))
packet = struct.pack('!6s6s2s',
'xaaxaaxaaxaaxaaxaa',
'xbbxbbxbbxbbxbbxbb' , 'x08x00')
rawSocket.send(packet + 'Welcome to PYCON')

Scapy
• Interactive packet manipulation tool
• Forge or decode packets
• Wide number of protocols
• Send Packet on the wire
• Capture Packet
• Match requests and replies

Scapy
reza@kamalifard$ sudo scapy
WARNING: No route found for IPv6 destination :: (no
default route?)
Welcome to Scapy (2.2.0)
>>>ls()
ARP : ARP
DHCP : DHCP options
DNS : DNS
GPRS : GPRSdummy
L2TP : None
PPPoE : PPP over Ethernet
[...]

Sniff
>>> p = sniff(count = 5)
>>> p
<Sniffed: TCP:5 UDP:0 ICMP:0 Other:0>
>>> p.show()
0000
0001
0002
0003
0004
>>>

Ether
Ether
Ether
Ether
Ether

/
/
/
/
/

IP
IP
IP
IP
IP

/
/
/
/
/

TCP
TCP
TCP
TCP
TCP

46.165.248.173:4948 > 192.168.1.2:47981 PA/ Raw
192.168.1.2:47981 > 46.165.248.173:4948 A
127.0.0.1:mmcc > 127.0.0.1:48852 PA / Raw
127.0.0.1:mmcc > 127.0.0.1:48852 PA / Raw
127.0.0.1:48852 > 127.0.0.1:mmcc A

Create Packet
>>> pkt = IP(dst ='192.168.1.254')/TCP(dport = 25)
>>> pkt
<IP frag=0 proto=tcp dst=192.168.1.254 |<TCP
dport=smtp |>>
>>> print pkt
E(@�~��P
e
>>> str(pkt)
'Ex00x00(x00x01x00x00@x06xf6~xc0xa8x01x02
xc0xa8x01xfex00x14x00x19x00x00x00x00x00
x00x00x00Px02 x00x0bex00x00'

>>> pkt.show()
###[ IP ]###
version= 4
ihl= None
tos= 0x0
len= None
id= 1
flags=
frag= 0
ttl= 64
proto= tcp
chksum= None
src= 192.168.1.2
dst= 192.168.1.254
options
###[ TCP ]###
sport= ftp_data
dport= smtp
seq= 0
ack= 0
dataofs= None
reserved= 0
flags= S
window= 8192
chksum= None
urgptr= 0
options= {}
>>>

###[ IP ]###
version= 4
ihl= None
tos= 0x0
len= None
id= 1
flags=
frag= 0
ttl= 64
proto= tcp
chksum= None
src= 192.168.1.2
dst= 192.168.1.254
options

###[ TCP ]###
sport= ftp_data
dport= smtp
seq= 0
ack= 0
dataofs= None
reserved= 0
flags= S
window= 8192
chksum= None
urgptr= 0
options= {}

Send Packets
>>> pkt = IP(dst = 'google.com')/ICMP()/'Welcome to
PyCon'
>>> pkt
<IP frag=0 proto=icmp dst=Net('google.com') |<ICMP
|<Raw load='Welcome to PyCon' |>>>
>>>
>>> pkt.show()

###[ IP ]###
version= 4
ihl= None
tos= 0x0
len= None
id= 1
flags=
frag= 0
ttl= 64
proto= icmp
chksum= None
src= 192.168.1.2
dst= Net('google.com')
options

###[ ICMP ]###
type= echo-request
code= 0
chksum= None
id= 0x0
seq= 0x0
###[ Raw ]###
load= 'Welcome to PyCon'
>>>send(pkt)
.
send 1 packets.

Send and Recive
>>> resp = sr(pkt)
Begin emission:
Finished to send 1 packets.
*
Received 1 packets, got 1 answers, remaining 0 packets
>>> resp
(<Results: TCP:0 UDP:0 ICMP:1 Other:0>, <Unanswered: TCP:0
UDP:0 ICMP:0 Other:0>)
>>> resp[0][0]
(<IP frag=0 proto=icmp dst=216.239.32.20 |<ICMP |<Raw
load='Welcome to PyCon' |>>>, <IP version=4L ihl=5L tos=0x0
len=44 id=0 flags= frag=0L ttl=33 proto=icmp chksum=0xdf23
src=216.239.32.20 dst=192.168.1.2 options=[] |<ICMP type=echoreply code=0 chksum=0xea37 id=0x0 seq=0x0 |<Raw load='Welcome
to PyCon' |<Padding load='x00x00' |>>>>)
>>>

‫ﺣﺪود ۰۵۷ ﻣﯿﻠﯿﻮن ﻧﻔﺮ ﮔﺮﺳﻨﻪ در ﺟﻬﺎن وﺟﻮد دارد!‬
‫ﮏ ﻧﻔﺮ از ﻫﺮ ۸ ﻧﻔﺮ‬

‫ﺑـﺮﻧـﺎﻣـﻪ ﺟـﻬـﺎﻧـﯽ ﻏـﺬا‬
‫ﻣﺒﺎرزه ﺟﻬﺎﻧﯽ ﺑﺎ ﮔﺮﺳﻨﮕﯽ‬

‫‪fa.wfp.org‬‬

>>> ?
>>> print contact_me
Mohammad Reza Kamalifard
Kamalifard@datasec.ir
http://www.linkedin.com/in/itmard
My Python Courses :
http://www.webamooz.ir/home/courses/python-for-ethicalhackers-1/
http://www.webamooz.ir/home/courses/python-for-ethicalhackers-2/

This work is product of DataSec Middle East(Ammniat Dadehaa Khavare miane) and licensed
under the Creative Commons Attribution-NoDerivs 3.0 Unported License.
Copyright 2013 Mohammad Reza Kamalifard
All rights reserved.

http://kamalifard.ir
http://www.webamooz.ir/home/courses/python-for-ethical-hackers-1/
http://www.webamooz.ir/home/courses/python-for-ethical-hackers-2/

Pycon - Python for ethical hackers

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