deb-bandit/bandit/plugins/crypto_random.py

49 lines
1.6 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.
import bandit
from bandit.core.test_properties import *
@checks('Call')
def random_lib_calls(context):
# Alerts on any usage of any random library function
# check type just to be safe
if type(context.call_function_name_qual) == str:
qualname_list = context.call_function_name_qual.split('.')
# if the library is random
if len(qualname_list) >= 2 and qualname_list[-2] == 'random':
return bandit.Issue(
severity=bandit.LOW,
confidence=bandit.HIGH,
text="Use of random is not suitable for security/"
"cryptographic purposes."
)
@checks('Import', 'ImportFrom')
def random_lib_imports(context):
# Alerts on importing the 'random' library
if context.is_module_being_imported('random'):
return bandit.Issue(
severity=bandit.LOW,
confidence=bandit.HIGH,
text="Random library should not be used for any security or "
"cryptographic purposes."
)