mirror of
https://github.com/rapid7/metasploit-framework
synced 2024-10-29 18:07:27 +01:00
35d3bbf74d
See the complaint on #4039. This doesn't fix that particular issue (it's somewhat unrelated), but does solve around a file parsing problem reported by @void-in
95 lines
2.8 KiB
Ruby
95 lines
2.8 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::Scanner
|
|
|
|
def initialize(info={})
|
|
super(update_info(info,
|
|
'Name' => 'Ruby on Rails XML Processor YAML Deserialization Scanner',
|
|
'Description' => %q{
|
|
This module attempts to identify Ruby on Rails instances vulnerable to
|
|
an arbitrary object instantiation flaw in the XML request processor.
|
|
},
|
|
'Author' => [
|
|
'hdm', #author
|
|
'jjarmoc' #improvements
|
|
],
|
|
'License' => MSF_LICENSE,
|
|
'References' =>
|
|
[
|
|
['CVE', '2013-0156'],
|
|
['URL', 'https://community.rapid7.com/community/metasploit/blog/2013/01/09/serialization-mischief-in-ruby-land-cve-2013-0156']
|
|
]
|
|
))
|
|
|
|
register_options([
|
|
OptString.new('URIPATH', [true, "The URI to test", "/"]),
|
|
OptEnum.new('HTTP_METHOD', [true, 'HTTP Method', 'POST', ['GET', 'POST', 'PUT'] ]),
|
|
], self.class)
|
|
end
|
|
|
|
def send_probe(ptype, pdata)
|
|
odata = %Q^<?xml version="1.0" encoding="UTF-8"?>\n<probe type="#{ptype}"><![CDATA[\n#{pdata}\n]]></probe>^
|
|
res = send_request_cgi({
|
|
'uri' => datastore['URIPATH'] || "/",
|
|
'method' => datastore['HTTP_METHOD'],
|
|
'ctype' => 'application/xml',
|
|
'data' => odata
|
|
}, 25)
|
|
end
|
|
|
|
def run_host(ip)
|
|
|
|
res1 = send_probe("string", "hello")
|
|
|
|
unless res1
|
|
vprint_status("#{rhost}:#{rport} No reply to the initial XML request")
|
|
return
|
|
end
|
|
|
|
if res1.code.to_s =~ /^[5]/
|
|
vprint_status("#{rhost}:#{rport} The server replied with #{res1.code} for our initial XML request, double check URIPATH")
|
|
return
|
|
end
|
|
|
|
res2 = send_probe("yaml", "--- !ruby/object:Time {}\n")
|
|
|
|
unless res2
|
|
vprint_status("#{rhost}:#{rport} No reply to the initial YAML probe")
|
|
return
|
|
end
|
|
|
|
res3 = send_probe("yaml", "--- !ruby/object:\x00")
|
|
|
|
unless res3
|
|
vprint_status("#{rhost}:#{rport} No reply to the second YAML probe")
|
|
return
|
|
end
|
|
|
|
vprint_status("Probe response codes: #{res1.code} / #{res2.code} / #{res3.code}")
|
|
|
|
|
|
if (res2.code == res1.code) and (res3.code != res2.code) and (res3.code != 200)
|
|
print_good("#{rhost}:#{rport} is likely vulnerable due to a #{res3.code} reply for invalid YAML")
|
|
report_vuln({
|
|
:host => rhost,
|
|
:port => rport,
|
|
:proto => 'tcp',
|
|
:name => self.name,
|
|
:info => "Module triggered a #{res3.code} reply",
|
|
:refs => self.references
|
|
})
|
|
else
|
|
vprint_status("#{rhost}:#{rport} is not likely to be vulnerable or URIPATH & HTTP_METHOD must be set")
|
|
end
|
|
end
|
|
|
|
end
|