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# Copyright 2018, Rackspace US, Inc.
#
# 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.
"""NoLogPasswordsRule used with ansible-lint."""
from __future__ import annotations
import sys
from typing import TYPE_CHECKING, Any
from ansiblelint.rules import AnsibleLintRule
from ansiblelint.utils import convert_to_boolean
if TYPE_CHECKING:
from ansiblelint.file_utils import Lintable
class NoLogPasswordsRule(AnsibleLintRule):
"""Password should not be logged."""
id = "no-log-password"
description = (
"When passing password argument you should have no_log configured "
"to a non False value to avoid accidental leaking of secrets."
)
severity = "LOW"
tags = ["opt-in", "security", "experimental"]
version_added = "v5.0.9"
def matchtask(
self, task: dict[str, Any], file: Lintable | None = None
) -> bool | str:
if task["action"]["__ansible_module_original__"] == "ansible.builtin.user" and (
(task["action"].get("password_lock") or task["action"].get("password_lock"))
and not task["action"].get("password")
):
has_password = False
else:
for param in task["action"].keys():
if "password" in param:
has_password = True
break
else:
has_password = False
has_loop = [key for key in task if key.startswith("with_") or key == "loop"]
# No no_log and no_log: False behave the same way
# and should return a failure (return True), so we
# need to invert the boolean
no_log = task.get("no_log", False)
if (
isinstance(no_log, str)
and no_log.startswith("{{")
and no_log.endswith("}}")
):
# we cannot really evaluate jinja expressions
return False
return bool(
has_password and not convert_to_boolean(no_log) and len(has_loop) > 0
)
if "pytest" in sys.modules: # noqa: C901
import pytest
from ansiblelint.testing import RunFromText # pylint: disable=ungrouped-imports
NO_LOG_UNUSED = """
- name: Test
hosts: all
tasks:
- name: Succeed when no_log is not used but no loop present
ansible.builtin.user:
name: john_doe
password: "wow"
state: absent
"""
NO_LOG_FALSE = """
- hosts: all
tasks:
- name: Use of jinja for no_log is valid
user:
name: john_doe
user_password: "{{ item }}"
state: absent
no_log: "{{ False }}"
- name: Fail when no_log is set to False
user:
name: john_doe
user_password: "{{ item }}"
state: absent
with_items:
- wow
- now
no_log: False
- name: Fail when no_log is set to False
ansible.builtin.user:
name: john_doe
user_password: "{{ item }}"
state: absent
with_items:
- wow
- now
no_log: False
"""
NO_LOG_NO = """
- hosts: all
tasks:
- name: Fail when no_log is set to no
user:
name: john_doe
password: "{{ item }}"
state: absent
no_log: no
loop:
- wow
- now
"""
PASSWORD_WITH_LOCK = """
- hosts: all
tasks:
- name: Fail when password is set and password_lock is true
user:
name: "{{ item }}"
password: "wow"
password_lock: true
with_random_choice:
- ansible
- lint
"""
NO_LOG_YES = """
- hosts: all
tasks:
- name: Succeed when no_log is set to yes
with_list:
- name: user
password: wow
- password: now
name: ansible
user:
name: "{{ item.name }}"
password: "{{ item.password }}"
state: absent
no_log: yes
"""
NO_LOG_TRUE = """
- hosts: all
tasks:
- name: Succeed when no_log is set to True
user:
name: john_doe
user_password: "{{ item }}"
state: absent
no_log: True
loop:
- wow
- now
"""
PASSWORD_LOCK_YES = """
- hosts: all
tasks:
- name: Succeed when only password locking account
user:
name: "{{ item }}"
password_lock: yes
# user_password: "this is a comment, not a password"
with_list:
- ansible
- lint
"""
PASSWORD_LOCK_FALSE = """
- hosts: all
tasks:
- name: Succeed when password_lock is false and password is not used
user:
name: lint
password_lock: False
"""
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_no_log_unused(rule_runner: RunFromText) -> None:
"""The task does not use no_log but also no loop."""
results = rule_runner.run_playbook(NO_LOG_UNUSED)
assert len(results) == 0
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_no_log_false(rule_runner: RunFromText) -> None:
"""The task sets no_log to false."""
results = rule_runner.run_playbook(NO_LOG_FALSE)
assert len(results) == 2
for result in results:
assert result.rule.id == "no-log-password"
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_no_log_no(rule_runner: RunFromText) -> None:
"""The task sets no_log to no."""
results = rule_runner.run_playbook(NO_LOG_NO)
assert len(results) == 1
assert results[0].rule.id == "no-log-password"
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_password_with_lock(rule_runner: RunFromText) -> None:
"""The task sets a password but also lock the user."""
results = rule_runner.run_playbook(PASSWORD_WITH_LOCK)
assert len(results) == 1
assert results[0].rule.id == "no-log-password"
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_no_log_yes(rule_runner: RunFromText) -> None:
"""The task sets no_log to yes."""
results = rule_runner.run_playbook(NO_LOG_YES)
assert len(results) == 0
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_no_log_true(rule_runner: RunFromText) -> None:
"""The task sets no_log to true."""
results = rule_runner.run_playbook(NO_LOG_TRUE)
assert len(results) == 0
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_no_log_password_lock_yes(rule_runner: RunFromText) -> None:
"""The task only locks the user."""
results = rule_runner.run_playbook(PASSWORD_LOCK_YES)
assert len(results) == 0
@pytest.mark.parametrize(
"rule_runner", (NoLogPasswordsRule,), indirect=["rule_runner"]
)
def test_password_lock_false(rule_runner: RunFromText) -> None:
"""The task does not actually lock the user."""
results = rule_runner.run_playbook(PASSWORD_LOCK_FALSE)
assert len(results) == 0
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