def modify_request(self, request):
'''
Mangles the request
:param request: HTTPRequest instance that is going to be modified by
the evasion plugin
:return: The modified request
'''
# Mangle the postdata
data = str(request.get_data())
if data:
try:
# Only mangle the postdata if it is a url encoded string
parse_qs(data)
except:
pass
else:
data = '\x00' + data
headers_copy = copy.deepcopy(request.headers)
headers_copy['content-length'] = str(len(data))
request = HTTPRequest(request.url_object, data, headers_copy,
request.get_origin_req_host())
return request
def modify_request(self, request):
'''
Mangles the request
:param request: HTTPRequest instance that is going to be modified
by the evasion plugin
:return: The modified request
'''
# First we mangle the URL
path = request.url_object.get_path()
path = self._mutate(path)
# Finally, we set all the mutants to the request in order to return it
new_url = request.url_object.copy()
new_url.set_path(path)
# Mangle the postdata
data = request.get_data()
if data:
try:
# Only mangle the postdata if it is a url encoded string
parse_qs(data)
except:
pass
else:
data = self._mutate(data)
new_req = HTTPRequest(new_url, data, request.headers,
request.get_origin_req_host())
return new_req
def modify_request(self, request):
'''
Mangles the request
:param request: HTTPRequest instance that is going to be modified
by the evasion plugin
:return: The modified request
'''
# First we mangle the URL
path = request.url_object.get_path()
path = self._mutate(path)
# Finally, we set all the mutants to the request in order to return it
new_url = request.url_object.copy()
new_url.set_path(path)
# Mangle the postdata
data = request.get_data()
if data:
try:
# Only mangle the postdata if it is a url encoded string
parse_qs(data)
except:
pass
else:
data = self._mutate(data)
new_req = HTTPRequest(new_url, data, request.headers,
request.get_origin_req_host())
return new_req
def modify_request(self, request):
'''
Mangles the request
:param request: HTTPRequest instance that is going to be modified by
the evasion plugin
:return: The modified request
'''
# Mangle the postdata
data = str(request.get_data())
if data:
try:
# Only mangle the postdata if it is a url encoded string
parse_qs(data)
except:
pass
else:
data = '\x00' + data
headers_copy = copy.deepcopy(request.headers)
headers_copy['content-length'] = str(len(data))
request = HTTPRequest(request.url_object, data, headers_copy,
request.get_origin_req_host())
return request
def test_find_csrf_token_false(self):
url = URL('http://moth/w3af/audit/csrf/')
query_string = parse_qs('secret=not a token')
freq = FuzzableRequest(url, method='GET', dc=query_string)
token = self.csrf_plugin._find_csrf_token(freq)
self.assertNotIn('secret', token)
def test_find_csrf_token_true_simple(self):
url = URL('http://moth/w3af/audit/csrf/')
query_string = parse_qs('secret=f842eb01b87a8ee18868d3bf80a558f3')
freq = FuzzableRequest(url, method='GET', dc=query_string)
token = self.csrf_plugin._find_csrf_token(freq)
self.assertIn('secret', token)
def test_find_csrf_token_false(self):
url = URL('http://moth/w3af/audit/csrf/')
query_string = parse_qs('secret=not a token')
freq = FuzzableRequest(url, method='GET', dc=query_string)
token = self.csrf_plugin._find_csrf_token(freq)
self.assertNotIn('secret', token)
def test_find_csrf_token_true_simple(self):
url = URL('http://moth/w3af/audit/csrf/')
query_string = parse_qs('secret=f842eb01b87a8ee18868d3bf80a558f3')
freq = FuzzableRequest(url, method='GET', dc=query_string)
token = self.csrf_plugin._find_csrf_token(freq)
self.assertIn('secret', token)
def test_add_when_qs_and_postdata(self):
rp = rnd_param()
u = URL('http://www.w3af.com/?id=1')
r = HTTPRequest( u, data='a=b' )
modified_request = rp.modify_request( r )
data = parse_qs( modified_request.get_data() )
self.assertEqual(len(data), 2)
modified_qs = modified_request.url_object.querystring
self.assertEqual(len(modified_qs), 2)
def test_add_when_qs_and_postdata(self):
rp = rnd_param()
u = URL('http://www.w3af.com/?id=1')
r = HTTPRequest(u, data='a=b')
modified_request = rp.modify_request(r)
data = parse_qs(modified_request.get_data())
self.assertEqual(len(data), 2)
modified_qs = modified_request.url_object.querystring
self.assertEqual(len(modified_qs), 2)
def modify_request(self, request):
'''
Mangles the request
:param request: HTTPRequest instance that is going to be modified by
the evasion plugin
:return: The modified request
'''
# This is a test URL
# http://172.16.1.132/index.asp?q=%uFF1Cscript%3Ealert(%22Hello%22)%3C/script%3E
# This is the content of index.asp :
# <%=Request.QueryString("q")%>
# First we mangle the URL
path = request.url_object.get_path()
path = self._mutate(path)
# Now we mangle the postdata
data = request.get_data()
if data:
try:
# Only mangle the postdata if it is a url encoded string
parse_qs(data)
except:
pass
else:
# We get here only if the parsing was successful
data = self._mutate(data)
# Finally, we set all the mutants to the request in order to return it
new_url = request.url_object.copy()
new_url.set_path(path)
new_req = HTTPRequest(new_url, data, request.headers,
request.get_origin_req_host())
return new_req
def modify_request(self, request):
"""
Mangles the request
:param request: HTTPRequest instance that is going to be modified by
the evasion plugin
:return: The modified request
"""
# This is a test URL
# http://172.16.1.132/index.asp?q=%uFF1Cscript%3Ealert(%22Hello%22)%3C/script%3E
# This is the content of index.asp :
# <%=Request.QueryString("q")%>
# First we mangle the URL
path = request.url_object.get_path()
path = self._mutate(path)
# Now we mangle the postdata
data = request.get_data()
if data:
try:
# Only mangle the postdata if it is a url encoded string
parse_qs(data)
except:
pass
else:
# We get here only if the parsing was successful
data = self._mutate(data)
# Finally, we set all the mutants to the request in order to return it
new_url = request.url_object.copy()
new_url.set_path(path)
new_req = HTTPRequest(new_url, data, request.headers, request.get_origin_req_host())
return new_req
def test_get_query_string(self):
self.assertEqual(URL(u'http://w3af.com/a/').querystring,
QueryString({}.items()))
self.assertEqual(URL(u'http://w3af.com/foo/bar.txt?id=3').querystring,
QueryString({u'id': [u'3']}.items()))
self.assertEqual(URL(u'http://w3af.com/foo/bar.txt?id=3&id=4').querystring,
QueryString({u'id': [u'3', u'4']}.items()))
url = URL(u'http://w3af.com/foo/bar.txt?id=3&ff=4&id=5')
self.assertEqual(url.querystring,
QueryString({u'id': [u'3', u'5'], u'ff': [u'4']}.items()))
self.assertEqual(url.querystring, parse_qs(str(url.querystring)))
def set_options(self, options_list):
self.name = options_list['name'].get_value()
self.url = options_list['url'].get_value()
self.data = parse_qs(options_list['data'].get_value())
self.method = options_list['method'].get_value()
self.vulnerable_parameter = options_list[
'vulnerable_parameter'].get_value()
if not self.data:
raise ValueError('This vulnerability requires data to be configured.')
if self.vulnerable_parameter not in self.data:
msg = 'The vulnerable parameter was not found in the configured data'\
' field. Please enter one of the following values: %s.'
raise ValueError(msg % ', '.join(self.data))
def set_options(self, options_list):
self.name = options_list['name'].get_value()
self.url = options_list['url'].get_value()
self.data = parse_qs(options_list['data'].get_value())
self.method = options_list['method'].get_value()
self.vulnerable_parameter = options_list[
'vulnerable_parameter'].get_value()
if not self.data:
raise ValueError(
'This vulnerability requires data to be configured.')
if self.vulnerable_parameter not in self.data:
msg = 'The vulnerable parameter was not found in the configured data'\
' field. Please enter one of the following values: %s.'
raise ValueError(msg % ', '.join(self.data))
def create_fuzzable_request_from_parts(url, method='GET', post_data='',
add_headers=None):
'''
Creates a fuzzable request based on the input parameters.
:param req_url: A URL object
:param method: A string that represents the method ('GET', 'POST', etc)
:param post_data: A string that represents the postdata.
:param add_headers: A Headers object that holds the headers. If `req_url` is a
request then this dict will be merged with the request's
headers.
'''
if add_headers is not None and not isinstance(add_headers, Headers):
raise ValueError('create_fuzzable_request requires Headers object.')
if not isinstance(url, URL):
raise TypeError('Requires URL to create FuzzableRequest.')
headers = add_headers or Headers()
# Just a query string request! No postdata
if not post_data:
return HTTPQSRequest(url, method, headers)
else:
# Seems to be something that has post data
data = {}
conttype, header_name = headers.iget('content-type', '')
if conttype:
del headers[header_name]
contlen, header_name = headers.iget('content-length', '')
if contlen:
del headers[header_name]
#
# Case #1 - multipart form data - prepare data container
#
if conttype.startswith('multipart/form-data'):
pdict = cgi.parse_header(conttype)[1]
try:
dc = cgi.parse_multipart(StringIO(post_data), pdict)
except Exception, e:
msg = 'Multipart form data is invalid, exception: "%s".' \
' Returning our best match HTTPPostDataRequest.'
om.out.debug(msg % e)
empty_data = QueryString()
return HTTPPostDataRequest(url, method, headers, dc=empty_data)
else:
data = QueryString()
data.update(dc)
# Please note that the QueryString is just a container for the
# information. When the HTTPPostDataRequest is sent it should
# be serialized into multipart again by the MultipartPostHandler
# because the headers contain the multipart/form-data header
headers['content-type'] = conttype
return HTTPPostDataRequest(url, method, headers, dc=data)
#
# Case #2 - JSON request
#
try:
data = json.loads(post_data)
except:
pass
else:
if data:
return JSONPostDataRequest(url, method, headers, dc=data)
#
# Case #3 - XMLRPC request
#
if all(map(lambda stop: stop in post_data.lower(), XMLRPC_WORDS)):
return XMLRPCRequest(post_data, url, method, headers)
#
# Case #4 - a typical post request
#
try:
data = parse_qs(post_data)
except:
om.out.debug('Failed to create a data container that '
'can store this data: "' + post_data + '".')
else:
# Finally create request
return HTTPPostDataRequest(url, method, headers, dc=data)
return None
def __init__(self):
self.name = ''
self.url = URL('http://host.tld/')
self.data = parse_qs('')
self.method = 'GET'
self.vulnerable_parameter = ''
def __init__(self):
self.name = ''
self.url = URL('http://host.tld/')
self.data = parse_qs('')
self.method = 'GET'
self.vulnerable_parameter = ''
def test_parse_qs_case06(self):
self.assertEqual(parse_qs(u'%B1%D0%B1%D1=%B1%D6%B1%D7', encoding='euc-jp'),
QueryString( [(u'\u9834\u82f1', [u'\u75ab\u76ca']),] ))
def test_parse_qs_case05(self):
self.assertEqual(parse_qs('pname'),
QueryString( [(u'pname', [u'']),] ))
def test_parse_qs_case04(self):
self.assertEqual(parse_qs('id=3&ff=4&id=5'),
QueryString( [(u'id', [u'3', u'5']),
(u'ff', [u'4'])] ))
def test_parse_qs_case03(self):
self.assertEqual(parse_qs('id=3&id=4'),
QueryString( [(u'id', [u'3', u'4']),] ))
def test_parse_qs_case02(self):
self.assertEqual(parse_qs('id=3+1'),
QueryString( [(u'id', [u'3+1']),] ))
