89 lines
3.2 KiB
Python
89 lines
3.2 KiB
Python
# Copyright 2016 Rackspace
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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
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from syntribos._i18n import _
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from syntribos.checks import has_string as has_string
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from syntribos.checks import time_diff as time_diff
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from syntribos.tests.fuzz import base_fuzz
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class BufferOverflowBody(base_fuzz.BaseFuzzTestCase):
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"""Test for buffer overflow vulnerabilities in HTTP body."""
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test_name = "BUFFER_OVERFLOW_BODY"
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test_type = "data"
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failure_keys = [
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'*** stack smashing detected ***:',
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'Backtrace:',
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'Memory map:',
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]
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@classmethod
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def _get_strings(cls, file_name=None):
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return [
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"A" * (2 ** 16 + 1),
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"a" * 10 ** 5,
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'\x00' * (2 ** 16 + 1),
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"%%s" * 513,
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]
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def test_case(self):
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self.run_default_checks()
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self.test_signals.register(has_string(self))
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if "FAILURE_KEYS_PRESENT" in self.test_signals:
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failed_strings = self.test_signals.find(
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slugs="FAILURE_KEYS_PRESENT")[0].data["failed_strings"]
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self.register_issue(
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defect_type="bof_strings",
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severity=syntribos.MEDIUM,
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confidence=syntribos.LOW,
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description=("The string(s): '{0}', known to be commonly "
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"returned after a successful buffer overflow "
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"attack, have been found in the response. This "
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"could indicate a vulnerability to buffer "
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"overflow attacks.").format(failed_strings))
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self.diff_signals.register(time_diff(self))
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if "TIME_DIFF_OVER" in self.diff_signals:
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self.register_issue(
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defect_type="bof_timing",
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severity=syntribos.MEDIUM,
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confidence=syntribos.MEDIUM,
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description=(_("The time it took to resolve a request with a "
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"long string was too long compared to the "
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"baseline request. This could indicate a "
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"vulnerability to buffer overflow attacks")))
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class BufferOverflowParams(BufferOverflowBody):
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"""Test for buffer overflow vulnerabilities in HTTP params."""
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test_name = "BUFFER_OVERFLOW_PARAMS"
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test_type = "params"
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class BufferOverflowHeaders(BufferOverflowBody):
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"""Test for buffer overflow vulnerabilities in HTTP header."""
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test_name = "BUFFER_OVERFLOW_HEADERS"
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test_type = "headers"
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class BufferOverflowURL(BufferOverflowBody):
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"""Test for buffer overflow vulnerabilities in HTTP URL."""
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test_name = "BUFFER_OVERFLOW_URL"
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test_type = "url"
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url_var = "FUZZ"
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