mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-23 13:20:41 +00:00
77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
|
# -*- coding:utf-8 -*-
|
||
|
|
#
|
||
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||
|
|
# not use this file except in compliance with the License. You may obtain
|
||
|
|
# a copy of the License at
|
||
|
|
#
|
||
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
#
|
||
|
|
# Unless required by applicable law or agreed to in writing, software
|
||
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||
|
|
# License for the specific language governing permissions and limitations
|
||
|
|
# under the License.
|
||
|
|
|
||
|
|
r"""
|
||
|
|
====================================
|
||
|
|
B702: Test for use of mako templates
|
||
|
|
====================================
|
||
|
|
|
||
|
|
Mako is a Python templating system often used to build web applications. It is
|
||
|
|
the default templating system used in Pylons and Pyramid. Unlike Jinja2 (an
|
||
|
|
alternative templating system), Mako has no environment wide variable escaping
|
||
|
|
mechanism. Because of this, all input variables must be carefully escaped
|
||
|
|
before use to prevent possible vulnerabilities to Cross Site Scripting (XSS)
|
||
|
|
attacks.
|
||
|
|
|
||
|
|
|
||
|
|
:Example:
|
||
|
|
|
||
|
|
.. code-block:: none
|
||
|
|
|
||
|
|
>> Issue: Mako templates allow HTML/JS rendering by default and are
|
||
|
|
inherently open to XSS attacks. Ensure variables in all templates are
|
||
|
|
properly sanitized via the 'n', 'h' or 'x' flags (depending on context).
|
||
|
|
For example, to HTML escape the variable 'data' do ${ data |h }.
|
||
|
|
Severity: Medium Confidence: High
|
||
|
|
Location: ./examples/mako_templating.py:10
|
||
|
|
9
|
||
|
|
10 mako.template.Template("hern")
|
||
|
|
11 template.Template("hern")
|
||
|
|
|
||
|
|
|
||
|
|
.. seealso::
|
||
|
|
|
||
|
|
- http://www.makotemplates.org/
|
||
|
|
- `OWASP XSS <https://www.owasp.org/index.php/Cross-site_Scripting_(XSS)>`_
|
||
|
|
- https://security.openstack.org
|
||
|
|
- https://security.openstack.org/guidelines/dg_cross-site-scripting-xss.html
|
||
|
|
|
||
|
|
.. versionadded:: 0.10.0
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
import bandit
|
||
|
|
from bandit.core import test_properties as test
|
||
|
|
|
||
|
|
|
||
|
|
@test.checks('Call')
|
||
|
|
@test.test_id('B702')
|
||
|
|
def use_of_mako_templates(context):
|
||
|
|
# check type just to be safe
|
||
|
|
if isinstance(context.call_function_name_qual, str):
|
||
|
|
qualname_list = context.call_function_name_qual.split('.')
|
||
|
|
func = qualname_list[-1]
|
||
|
|
if 'mako' in qualname_list and func == 'Template':
|
||
|
|
# unlike Jinja2, mako does not have a template wide autoescape
|
||
|
|
# feature and thus each variable must be carefully sanitized.
|
||
|
|
return bandit.Issue(
|
||
|
|
severity=bandit.MEDIUM,
|
||
|
|
confidence=bandit.HIGH,
|
||
|
|
text="Mako templates allow HTML/JS rendering by default and "
|
||
|
|
"are inherently open to XSS attacks. Ensure variables "
|
||
|
|
"in all templates are properly sanitized via the 'n', "
|
||
|
|
"'h' or 'x' flags (depending on context). For example, "
|
||
|
|
"to HTML escape the variable 'data' do ${ data |h }."
|
||
|
|
)
|