##
# 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::Scanner
include Msf::Auxiliary::Report
def initialize(info={})
super(update_info(info,
'Name' => 'SerComm Network Device Backdoor Detection',
'Description' => %q{
This module can identify SerComm manufactured network devices which
contain a backdoor, allowing command injection or account disclosure.
},
'Author' =>
[
'Eloi Vanderbeken <eloi.vanderbeken[at]gmail.com>', # Initial discovery, poc
'Matt "hostess" Andreko <mandreko[at]accuvant.com>' # Msf module
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2014-0659' ],
[ 'OSVDB', '101653' ],
[ 'URL', 'https://github.com/elvanderb/TCP-32764' ]
],
'DisclosureDate' => '2013-12-31' ))
register_options([
Opt::RPORT(32764)
])
end
def do_report(ip, endianness)
report_vuln({
:host => ip,
:port => rport,
:name => "SerComm Network Device Backdoor",
:refs => self.references,
:info => "SerComm Network Device Backdoor found on a #{endianness} device"
})
end
def run_host(ip)
begin
connect
sock.put(Rex::Text.rand_text(5))
res = sock.get_once
disconnect
if (res && res.start_with?("MMcS"))
print_good("#{ip}:#{rport} - Possible backdoor detected - Big Endian")
do_report(ip, "Big Endian")
elsif (res && res.start_with?("ScMM"))
print_good("#{ip}:#{rport} - Possible backdoor detected - Little Endian")
do_report(ip, "Little Endian")
else
vprint_status("#{ip}:#{rport} - Backdoor not detected.")
end
rescue Rex::ConnectionError => e
vprint_error("#{ip}:#{rport} - Connection failed: #{e.class}: #{e}")
end
end
end
