## https://sploitus.com/exploit?id=PACKETSTORM:180935
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Auxiliary
include Msf::Auxiliary::Report
include Msf::Auxiliary::Scanner
include Msf::Exploit::Remote::TNS
def initialize(info = {})
super(update_info(info,
'Name' => 'Oracle TNS Listener Checker',
'Description' => %q{
This module checks the server for vulnerabilities like TNS Poison.
Module sends a server a packet with command to register new TNS Listener and checks
for a response indicating an error. If the registration is errored, the target is not
vulnerable. Otherwise, the target is vulnerable to malicious registrations.
},
'Author' => ['ir0njaw (Nikita Kelesis) <nikita.elkey[at]gmail.com>'], # of Digital Security [http://dsec.ru]
'References' =>
[
[ 'CVE', '2012-1675'],
[ 'URL', 'https://seclists.org/fulldisclosure/2012/Apr/204' ],
],
'DisclosureDate' => '2012-04-18',
'License' => MSF_LICENSE))
register_options(
[
Opt::RPORT(1521)
])
end
def run_host(ip)
begin
connect
send_packet = tns_packet("(CONNECT_DATA=(COMMAND=service_register_NSGR))")
sock.put(send_packet)
packet = sock.read(100)
if packet
hex_packet = Rex::Text.to_hex(packet, ':')
split_hex = hex_packet.split(':')
find_packet = /\(ERROR_STACK=\(ERROR=/ === packet
if find_packet == true #TNS Packet returned ERROR
print_error("#{ip}:#{rport} is not vulnerable")
elsif split_hex[5] == '02' #TNS Packet Type: ACCEPT
print_good("#{ip}:#{rport} is vulnerable")
elsif split_hex[5] == '04' #TNS Packet Type: REFUSE
print_error("#{ip}:#{rport} is not vulnerable")
else #All other TNS packet types or non-TNS packet type response cannot guarantee vulnerability
print_error("#{ip}:#{rport} might not be vulnerable")
end
else
print_error("#{ip}:#{rport} is not vulnerable")
end
# TODO: Module should report_vuln if this finding is solid.
rescue ::Rex::ConnectionError, ::Errno::EPIPE
print_error("#{ip}:#{rport} unable to connect to the server")
end
end
end