mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-15 01:30:40 +00:00
75 lines
2.6 KiB
Python
75 lines
2.6 KiB
Python
|
# -*- coding:utf-8 -*-
|
||
|
|
#
|
||
|
|
# Copyright 2014 Hewlett-Packard Development Company, L.P.
|
||
|
|
#
|
||
|
|
# 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"""
|
||
|
|
==============================================
|
||
|
|
B601: Test for shell injection within Paramiko
|
||
|
|
==============================================
|
||
|
|
|
||
|
|
Paramiko is a Python library designed to work with the SSH2 protocol for secure
|
||
|
|
(encrypted and authenticated) connections to remote machines. It is intended to
|
||
|
|
run commands on a remote host. These commands are run within a shell on the
|
||
|
|
target and are thus vulnerable to various shell injection attacks. Bandit
|
||
|
|
reports a MEDIUM issue when it detects the use of Paramiko's "exec_command" or
|
||
|
|
"invoke_shell" methods advising the user to check inputs are correctly
|
||
|
|
sanitized.
|
||
|
|
|
||
|
|
:Example:
|
||
|
|
|
||
|
|
.. code-block:: none
|
||
|
|
|
||
|
|
>> Issue: Possible shell injection via Paramiko call, check inputs are
|
||
|
|
properly sanitized.
|
||
|
|
Severity: Medium Confidence: Medium
|
||
|
|
Location: ./examples/paramiko_injection.py:4
|
||
|
|
3 # this is not safe
|
||
|
|
4 paramiko.exec_command('something; reallly; unsafe')
|
||
|
|
5
|
||
|
|
|
||
|
|
>> Issue: Possible shell injection via Paramiko call, check inputs are
|
||
|
|
properly sanitized.
|
||
|
|
Severity: Medium Confidence: Medium
|
||
|
|
Location: ./examples/paramiko_injection.py:10
|
||
|
|
9 # this is not safe
|
||
|
|
10 SSHClient.invoke_shell('something; bad; here\n')
|
||
|
|
11
|
||
|
|
|
||
|
|
.. seealso::
|
||
|
|
|
||
|
|
- https://security.openstack.org
|
||
|
|
- https://github.com/paramiko/paramiko
|
||
|
|
- https://www.owasp.org/index.php/Command_Injection
|
||
|
|
|
||
|
|
.. versionadded:: 0.12.0
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
import bandit
|
||
|
|
from bandit.core import test_properties as test
|
||
|
|
|
||
|
|
|
||
|
|
@test.checks('Call')
|
||
|
|
@test.test_id('B601')
|
||
|
|
def paramiko_calls(context):
|
||
|
|
issue_text = ('Possible shell injection via Paramiko call, check inputs '
|
||
|
|
'are properly sanitized.')
|
||
|
|
for module in ['paramiko']:
|
||
|
|
if context.is_module_imported_like(module):
|
||
|
|
if context.call_function_name in ['exec_command', 'invoke_shell']:
|
||
|
|
return bandit.Issue(severity=bandit.MEDIUM,
|
||
|
|
confidence=bandit.MEDIUM,
|
||
|
|
text=issue_text)
|