46 lines
1.7 KiB
Python
46 lines
1.7 KiB
Python
# Copyright 2016 Intel
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import syntribos.signal
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def cors(test):
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"""Checks if the response header has any CORS headers.
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If any cross origin resource sharing headers (CORS) are found,
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checks if any is set to wild characters, if so returns a Signal.
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:param test object
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:returns: Signal if cors vulnerability is found, other wise None
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:rtype: :class:`syntribos.signal.SynSignal, None`
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"""
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strength = 1.0
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slug = "HEADER_CORS{0}_WILDCARD"
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cors_type = ""
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places = ['Origin', 'Methods', 'Headers']
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cors_headers = ["Access-Control-Allow-{0}".format(p) for p in places]
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headers = test.init_resp.headers
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for cors_header in cors_headers:
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if headers.get(cors_header) == '*':
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cors_type += "_" + cors_header.upper().split('-')[-1]
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text = ("A wildcard CORS header policy with these details "
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"was detected: {head}: {value}.\n".format(
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head=cors_header, value=headers[cors_header]))
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if cors_type == "":
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return None
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slug = slug.format(cors_type)
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return syntribos.signal.SynSignal(text=text, slug=slug, strength=strength)
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