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(),
retries=request.retries_left)
return new_req
def can_parse(post_data):
try:
parse_qs(post_data)
except:
return False
else:
return True
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(),
retries=request.retries_left)
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
"""
# 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(),
retries=request.retries_left)
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
"""
data = str(request.get_data())
if not data:
return request
# Only mangle the postdata if it is a url encoded string
try:
parse_qs(data)
except:
return request
data = '\x00' + data
headers_copy = copy.deepcopy(request.headers)
headers_copy['content-length'] = str(len(data))
new_req = request.copy()
new_req.set_headers(headers_copy)
new_req.set_data(data)
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(),
retries=request.retries_left)
return new_req
def can_parse(post_data):
try:
parse_qs(post_data)
except:
return False
else:
return True
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)
# 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 = request.copy()
new_req.set_data(data)
new_req.set_uri(new_url)
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
qs = copy.deepcopy(request.url_object.querystring)
qs = self._mutate(qs)
# Finally, we set all the mutants to the request in order to return it
new_url = request.url_object.copy()
new_url.querystring = qs
# Mangle the postdata
post_data = request.get_data()
if post_data:
try:
# Only mangle the postdata if it is a url encoded string
post_data = parse_qs(post_data)
except:
pass
else:
post_data = str(self._mutate(post_data))
new_req = HTTPRequest(
new_url, post_data, request.headers, request.get_origin_req_host(), retries=request.retries_left
)
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
qs = copy.deepcopy(request.url_object.querystring)
qs = self._mutate(qs)
# Finally, we set all the mutants to the request in order to return it
new_url = request.url_object.copy()
new_url.querystring = qs
# Mangle the postdata
post_data = request.get_data()
if post_data:
try:
# Only mangle the postdata if it is a url encoded string
post_data = parse_qs(post_data)
except:
pass
else:
post_data = str(self._mutate(post_data))
new_req = HTTPRequest(new_url,
post_data,
request.headers,
request.get_origin_req_host(),
retries=request.retries_left)
return new_req
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')
freq.set_querystring(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')
freq.set_querystring(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')
freq.set_querystring(query_string)
token = self.csrf_plugin._find_csrf_token(freq)
self.assertIn('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')
freq.set_querystring(query_string)
token = self.csrf_plugin._find_csrf_token(freq)
self.assertIn('secret', token)
def validate(self, value):
if isinstance(value, QueryString):
return value
try:
return parse_qs(value)
except Exception:
msg = 'Invalid query string configured by user.'
raise BaseFrameworkException(msg)
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(),
retries=request.retries_left)
return new_req
def test_add_when_qs_and_postdata(self):
url = URL('http://www.w3af.com/?id=1')
original_req = HTTPRequest(url, data='a=b')
modified_req = self.eplugin.modify_request(original_req)
self.assertEqual(len(modified_req.url_object.querystring), 2)
self.assertIn('id=1', str(modified_req.url_object.querystring))
data = parse_qs(modified_req.get_data())
self.assertEqual(len(data), 2)
self.assertIn('a=b', str(data))
modified_qs = modified_req.url_object.querystring
self.assertEqual(len(modified_qs), 2)
def test_add_when_qs_and_postdata(self):
url = URL('http://www.w3af.com/?id=1')
original_req = HTTPRequest(url, data='a=b')
modified_req = self.eplugin.modify_request(original_req)
self.assertEqual(len(modified_req.url_object.querystring), 2)
self.assertIn('id=1', str(modified_req.url_object.querystring))
data = parse_qs(modified_req.get_data())
self.assertEqual(len(data), 2)
self.assertIn('a=b', str(data))
modified_qs = modified_req.url_object.querystring
self.assertEqual(len(modified_qs), 2)
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 from_postdata(cls, headers, post_data):
if not URLEncodedForm.is_urlencoded(headers):
raise ValueError('Request is not %s.' % URLEncodedForm.ENCODING)
if not URLEncodedForm.can_parse(post_data):
raise ValueError('Failed to parse post_data as Form.')
parsed_data = parse_qs(post_data)
urlencoded_form = cls()
for key, value_list in parsed_data.iteritems():
for value in value_list:
form_field = GenericFormField(INPUT_TYPE_TEXT, key, value)
urlencoded_form.add_form_field(form_field)
return urlencoded_form
def from_postdata(cls, headers, post_data):
if not URLEncodedForm.is_urlencoded(headers):
raise ValueError('Request is not %s.' % URLEncodedForm.ENCODING)
if not URLEncodedForm.can_parse(post_data):
raise ValueError('Failed to parse post_data as Form.')
parsed_data = parse_qs(post_data)
urlencoded_form = cls()
for key, value_list in parsed_data.iteritems():
for value in value_list:
form_field = GenericFormField(INPUT_TYPE_TEXT, key, value)
urlencoded_form.add_form_field(form_field)
return urlencoded_form
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:
msg = 'This vulnerability requires data to be configured.'
raise ValueError(msg)
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))
try:
self.create_vuln()
except RuntimeError, rte:
# https://github.com/andresriancho/w3af/issues/4310
raise ValueError('%s' % rte)
def validate(self, value):
try:
return parse_qs(value)
except Exception:
msg = 'Invalid query string configured by user.'
raise BaseFrameworkException(msg)
def test_parse_qs_case01(self):
self.assertEqual(parse_qs('id=3'),
QueryString([(u'id', [u'3'])]))
def test_parse_qs_case06(self):
expected_parsed_url = QueryString(
[(u'\u9834\u82f1', [u'\u75ab\u76ca'])], encoding='euc-jp')
self.assertEqual(
parse_qs(u'%B1%D0%B1%D1=%B1%D6%B1%D7', encoding='euc-jp'),
expected_parsed_url)
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_repeated_parameter_names(self):
self.assertEqual(parse_qs('id=3&id=4'),
QueryString([(u'id', [u'3', u'4'])]))
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_case01(self):
self.assertEqual(parse_qs('id=3'), QueryString([(u'id', [u'3'])]))
def test_parse_qs_case03(self):
qs = QueryString([(u'id', [u'3 1'])])
parsed_qs = parse_qs('id=3%201')
self.assertEqual(str(parsed_qs), str(qs))
def test_parse_qs_repeated_parameter_names(self):
self.assertEqual(parse_qs('id=3&id=4'),
QueryString([(u'id', [u'3', u'4'])]))
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_case05(self):
self.assertEqual(parse_qs('pname'),
QueryString([(u'pname', [u''])]))
def test_parse_qs_case06(self):
expected_parsed_url = QueryString([(u'\u9834\u82f1',
[u'\u75ab\u76ca'])],
encoding='euc-jp')
self.assertEqual(parse_qs(u'%B1%D0%B1%D1=%B1%D6%B1%D7', encoding='euc-jp'),
expected_parsed_url)
def test_parse_qs_case03(self):
qs = QueryString([(u'id', [u'3 1'])])
parsed_qs = parse_qs('id=3%201')
self.assertEqual(str(parsed_qs), str(qs))