/
shared_hosting.py
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/
shared_hosting.py
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"""
shared_hosting.py
Copyright 2006 Andres Riancho
This file is part of w3af, http://w3af.org/ .
w3af is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 2 of the License.
w3af is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with w3af; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""
import socket
import w3af.core.controllers.output_manager as om
import w3af.core.data.kb.knowledge_base as kb
import w3af.core.data.constants.severity as severity
from w3af.core.controllers.plugins.infrastructure_plugin import InfrastructurePlugin
from w3af.core.controllers.exceptions import RunOnce
from w3af.core.controllers.misc.decorators import runonce
from w3af.core.controllers.misc.is_private_site import is_private_site
from w3af.core.data.options.opt_factory import opt_factory
from w3af.core.data.options.option_list import OptionList
from w3af.core.data.search_engines.bing import bing as bing
from w3af.core.data.kb.vuln import Vuln
class shared_hosting(InfrastructurePlugin):
"""
Use Bing search to determine if the website is in a shared hosting.
:author: Andres Riancho (andres.riancho@gmail.com)
"""
def __init__(self):
InfrastructurePlugin.__init__(self)
# User variables
self._result_limit = 300
@runonce(exc_class=RunOnce)
def discover(self, fuzzable_request):
"""
:param fuzzable_request: A fuzzable_request instance that contains
(among other things) the URL to test.
"""
domain = fuzzable_request.get_url().get_domain()
is_public = self._is_public(domain)
if is_public:
ip_address_list = self._get_ip_addresses(domain)
self._analyze_ips(ip_address_list, fuzzable_request)
def _is_public(self, domain):
if is_private_site(domain):
msg = 'shared_hosting plugin is not checking for subdomains for'\
' domain: "%s" because it is a private address.' % domain
om.out.debug(msg)
return False
return True
def _get_ip_addresses(self, domain):
"""
:return: All IP addresses for this domain.
"""
try:
addrinfo = socket.getaddrinfo(domain, 0)
except:
om.out.error('Failed to resolve address: "%s"' % domain)
return []
ip_address_list = [info[4][0] for info in addrinfo]
ip_address_list = list(set(ip_address_list))
return ip_address_list
def _analyze_ips(self, ip_address_list, fuzzable_request):
"""
Search all IP addresses in Bing and determine if they have more than
one domain hosted on it. Store findings in KB.
"""
bing_wrapper = bing(self._uri_opener)
# This is the best way to search, one by one!
for ip_address in ip_address_list:
results = bing_wrapper.get_n_results('ip:' + ip_address,
self._result_limit)
results = [r.URL.base_url() for r in results]
results = list(set(results))
# not vuln by default
is_vulnerable = False
if len(results) > 1:
# We may have something...
is_vulnerable = True
if len(results) == 2:
# Maybe we have this case:
# [Mon 09 Jun 2008 01:08:26 PM ART] - http://216.244.147.14/
# [Mon 09 Jun 2008 01:08:26 PM ART] - http://www.business.com/
# Where www.business.com resolves to 216.244.147.14; so we don't really
# have more than one domain in the same server.
try:
res0 = socket.gethostbyname(results[0].get_domain())
res1 = socket.gethostbyname(results[1].get_domain())
except:
pass
else:
if res0 == res1:
is_vulnerable = False
if is_vulnerable:
desc = 'The web application under test seems to be in a shared' \
' hosting. This list of domains, and the domain of the ' \
' web application under test, all point to the same IP' \
' address (%s):\n' % ip_address
domain_list = kb.kb.raw_read(self, 'domains')
for url in results:
domain = url.get_domain()
desc += '- %s\n' % domain
domain_list.append(domain)
kb.kb.raw_write(self, 'domains', domain_list)
v = Vuln.from_fr('Shared hosting', desc, severity.MEDIUM, 1,
self.get_name(), fuzzable_request)
v['also_in_hosting'] = results
om.out.vulnerability(desc, severity=severity.MEDIUM)
kb.kb.append(self, 'shared_hosting', v)
def get_options(self):
"""
:return: A list of option objects for this plugin.
"""
ol = OptionList()
d = 'Fetch the first "result_limit" results from the bing search'
o = opt_factory('result_limit', self._result_limit, d, 'integer')
ol.add(o)
return ol
def set_options(self, options_list):
"""
This method sets all the options that are configured using the user interface
generated by the framework using the result of get_options().
:param options_list: A dictionary with the options for the plugin.
:return: No value is returned.
"""
self._result_limit = options_list['result_limit'].get_value()
def get_long_desc(self):
"""
:return: A DETAILED description of the plugin functions and features.
"""
return """
This plugin tries to find out if the web application under test is stored
in a shared hosting. The procedure is pretty simple, using bing search
engine, the plugin searches for "ip:1.2.3.4" where 1.2.3.4 is the IP
address of the webserver.
One configurable option exists:
- result_limit
Fetch the first "result_limit" results from the "ip:" bing search.
"""