Yelp/detect-secrets
Yelp/detect-secrets là dự án mã nguồn mở trên GitHub, viết chủ yếu bằng Python, với 4.6k sao. An enterprise friendly way of detecting and preventing secrets in code.
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detect-secrets
About
detect-secrets is an aptly named module for (surprise, surprise) detecting secrets within a
code base.
However, unlike other similar packages that solely focus on finding secrets, this package is designed with the enterprise client in mind: providing a backwards compatible, systematic means of:
- Preventing new secrets from entering the code base,
- Detecting if such preventions are explicitly bypassed, and
- Providing a checklist of secrets to roll, and migrate off to a more secure storage.
This way, you create a separation of concern: accepting that there may currently be secrets hiding in your large repository (this is what we refer to as a baseline), but preventing this issue from getting any larger, without dealing with the potentially gargantuan effort of moving existing secrets away.
It does this by running periodic diff outputs against heuristically crafted regex statements, to identify whether any new secret has been committed. This way, it avoids the overhead of digging through all git history, as well as the need to scan the entire repository every time.
For a look at recent changes, please see CHANGELOG.md.
If you are looking to contribute, please see CONTRIBUTING.md.
For more detailed documentation, check out our other documentation.
Examples
Quickstart:
Create a baseline of potential secrets currently found in your git repository.
$ detect-secrets scan > .secrets.baseline
or, to run it from a different directory:
$ detect-secrets -C /path/to/directory scan > /path/to/directory/.secrets.baseline
Scanning non-git tracked files:
$ detect-secrets scan test_data/ --all-files > .secrets.baseline
Adding New Secrets to Baseline:
This will rescan your codebase, and:
- Update/upgrade your baseline to be compatible with the latest version,
- Add any new secrets it finds to your baseline,
- Remove any secrets no longer in your codebase
This will also preserve any labelled secrets you have.
$ detect-secrets scan --baseline .secrets.baseline
For baselines older than version 0.9, just recreate it.
Alerting off newly added secrets:
Scanning Staged Files Only:
$ git diff --staged --name-only -z | xargs -0 detect-secrets-hook --baseline .secrets.baseline
Scanning All Tracked Files:
$ git ls-files -z | xargs -0 detect-secrets-hook --baseline .secrets.baseline
Viewing All Enabled Plugins:
$ detect-secrets scan --list-all-plugins
ArtifactoryDetector
AWSKeyDetector
AzureStorageKeyDetector
BasicAuthDetector
CloudantDetector
DiscordBotTokenDetector
GitHubTokenDetector
GitLabTokenDetector
Base64HighEntropyString
HexHighEntropyString
IbmCloudIamDetector
IbmCosHmacDetector
IPPublicDetector
JwtTokenDetector
KeywordDetector
MailchimpDetector
NpmDetector
OpenAIDetector
PrivateKeyDetector
PypiTokenDetector
SendGridDetector
SlackDetector
SoftlayerDetector
SquareOAuthDetector
StripeDetector
TelegramBotTokenDetector
TwilioKeyDetector
Disabling Plugins:
$ detect-secrets scan --disable-plugin KeywordDetector --disable-plugin AWSKeyDetector
If you want to only run a specific plugin, you can do:
$ detect-secrets scan --list-all-plugins | \
grep -v 'BasicAuthDetector' | \
sed "s#^#--disable-plugin #g" | \
xargs detect-secrets scan test_data
Auditing a Baseline:
This is an optional step to label the results in your baseline. It can be used to narrow down your checklist of secrets to migrate, or to better configure your plugins to improve its signal-to-noise ratio.
$ detect-secrets audit .secrets.baseline
Usage in Other Python Scripts
Basic Use:
from detect_secrets import SecretsCollection
from detect_secrets.settings import default_settings
secrets = SecretsCollection()
with default_settings():
secrets.scan_file('test_data/config.ini')
import json
print(json.dumps(secrets.json(), indent=2))
More Advanced Configuration:
from detect_secrets import SecretsCollection
from detect_secrets.settings import transient_settings
secrets = SecretsCollection()
with transient_settings({
# Only run scans with only these plugins.
# This format is the same as the one that is saved in the generated baseline.
'plugins_used': [
# Example of configuring a built-in plugin
{
'name': 'Base64HighEntropyString',
'limit': 5.0,
},
# Example of using a custom plugin
{
'name': 'HippoDetector',
'path': 'file:///Users/aaronloo/Documents/github/detect-secrets/testing/plugins.py',
},
],
# We can also specify whichever additional filters we want.
# This is an example of using the function `is_identified_by_ML_model` within the
# local file `./private-filters/example.py`.
'filters_used': [
{
'path': 'file://private-filters/example.py::is_identified_by_ML_model',
},
]
}) as settings:
# If we want to make any further adjustments to the created settings object (e.g.
# disabling default filters), we can do so as such.
settings.disable_filters(
'detect_secrets.filters.heuristic.is_prefixed_with_dollar_sign',
'detect_secrets.filters.heuristic.is_likely_id_string',
)
secrets.scan_file('test_data/config.ini')
Installation
$ pip install detect-secrets
✨🍰✨
Install via brew:
$ brew install detect-secrets
Usage
detect-secrets comes with three different tools, and there is often confusion around which one
to use. Use this handy checklist to help you decide:
- Do you want to add secrets to your baseline? If so, use
detect-secrets scan. - Do you want to alert off new secrets not in the baseline? If so, use
detect-secrets-hook. - Are you analyzing the baseline itself? If so, use
detect-secrets audit.
Adding Secrets to Baseline
$ detect-secrets scan --help
usage: detect-secrets scan [-h] [--string [STRING]] [--only-allowlisted]
[--all-files] [--baseline FILENAME]
[--force-use-all-plugins] [--slim]
[--list-all-plugins] [-p PLUGIN]
[--base64-limit [BASE64_LIMIT]]
[--hex-limit [HEX_LIMIT]]
[--disable-plugin DISABLE_PLUGIN]
[-n | --only-verified]
[--exclude-lines EXCLUDE_LINES]
[--exclude-files EXCLUDE_FILES]
[--exclude-secrets EXCLUDE_SECRETS]
[--word-list WORD_LIST_FILE] [-f FILTER]
[--disable-filter DISABLE_FILTER]
[path [path ...]]
Scans a repository for secrets in code. The generated output is compatible
with `detect-secrets-hook --baseline`.
positional arguments:
path Scans the entire codebase and outputs a snapshot of
currently identified secrets.
optional arguments:
-h, --help show this help message and exit
--string [STRING] Scans an individual string, and displays configured
plugins' verdict.
--only-allowlisted Only scans the lines that are flagged with `allowlist
secret`. This helps verify that individual exceptions
are indeed non-secrets.
scan options:
--all-files Scan all files recursively (as compared to only
scanning git tracked files).
--baseline FILENAME If provided, will update existing baseline by
importing settings from it.
--force-use-all-plugins
If a baseline is provided, detect-secrets will default
to loading the plugins specified by that baseline.
However, this may also mean it doesn't perform the
scan with the latest plugins. If this flag is
provided, it will always use the latest plugins
--slim Slim baselines are created with the intention of
minimizing differences between commits. However, they
are not compatible with the `audit` functionality, and
slim baselines will need to be remade to be audited.
plugin options:
Configure settings for each secret scanning ruleset. By default, all
plugins are enabled unless explicitly disabled.
--list-all-plugins Lists all plugins that will be used for the scan.
-p PLUGIN, --plugin PLUGIN
Specify path to custom secret detector plugin.
--base64-limit [BASE64_LIMIT]
Sets the entropy limit for high entropy strings. Value
must be between 0.0 and 8.0, defaults to 4.5.
--hex-limit [HEX_LIMIT]
Sets the entropy limit for high entropy strings. Value
must be between 0.0 and 8.0, defaults to 3.0.
--disable-plugin DISABLE_PLUGIN
Plugin class names to disable. e.g.
Base64HighEntropyString
filter options:
Configure settings for filtering out secrets after they are flagged by the
engine.
-n, --no-verify Disables additional verification of secrets via
network call.
--only-verified Only flags secrets that can be verified.
--exclude-lines EXCLUDE_LINES
If lines match this regex, it will be ignored.
--exclude-files EXCLUDE_FILES
If filenames match this regex, it will be ignored.
--exclude-secrets EXCLUDE_SECRETS
If secrets match this regex, it will be ignored.
--word-list WORD_LIST_FILE
Text file with a list of words, if a secret contains a
word in the list we ignore it.
-f FILTER, --filter FILTER
Specify path to custom filter. May be a python module
path (e.g.
detect_secrets.filters.common.is_invalid_file) or a
local file path (e.g.
file://path/to/file.py::function_name).
--disable-filter DISABLE_FILTER
Specify filter to disable. e.g.
detect_secrets.filters.common.is_invalid_file
Blocking Secrets not in Baseline
$ detect-secrets-hook --help
usage: detect-secrets-hook [-h] [-v] [--version] [--baseline FILENAME]
[--list-all-plugins] [-p PLUGIN]
[--base64-limit [BASE64_LIMIT]]
[--hex-limit [HEX_LIMIT]]
[--disable-plugin DISABLE_PLUGIN]
[-n | --only-verified]
[--exclude-lines EXCLUDE_LINES]
[--exclude-files EXCLUDE_FILES]
[--exclude-secrets EXCLUDE_SECRETS]
[--word-list WORD_LIST_FILE] [-f FILTER]
[--disable-filter DISABLE_FILTER]
[filenames [filenames ...]]
positional arguments:
filenames Filenames to check.
optional arguments:
-h, --help show this help message and exit
-v, --verbose Verbose mode.
--version Display version information.
--json Print detect-secrets-hook output as JSON
--baseline FILENAME Explicitly ignore secrets through a baseline generated
by `detect-secrets scan`
plugin options:
Configure settings for each secret scanning ruleset. By default, all
plugins are enabled unless explicitly disabled.
--list-all-plugins Lists all plugins that will be used for the scan.
-p PLUGIN, --plugin PLUGIN
Specify path to custom secret detector plugin.
--base64-limit [BASE64_LIMIT]
Sets the entropy limit for high entropy strings. Value
must be between 0.0 and 8.0, defaults to 4.5.
--hex-limit [HEX_LIMIT]
Sets the entropy limit for high entropy strings. Value
must be between 0.0 and 8.0, defaults to 3.0.
--disable-plugin DISABLE_PLUGIN
Plugin class names to disable. e.g.
Base64HighEntropyString
filter options:
Configure settings for filtering out secrets after they are flagged by the
engine.
-n, --no-verify Disables additional verification of secrets via
network call.
--only-verified Only flags secrets that can be verified.
--exclude-lines EXCLUDE_LINES
If lines match this regex, it will be ignored.
--exclude-files EXCLUDE_FILES
If filenames match this regex, it will be ignored.
--exclude-secrets EXCLUDE_SECRETS
If secrets match this regex, it will be ignored.
-f FILTER, --filter FILTER
Specify path to custom filter. May be a python module
path (e.g.
detect_secrets.filters.common.is_invalid_file) or a
local file path (e.g.
file://path/to/file.py::function_name).
--disable-filter DISABLE_FILTER
Specify filter to disable. e.g.
detect_secrets.filters.common.is_invalid_file
We recommend setting this up as a pre-commit hook. One way to do this is by using the pre-commit framework:
# .pre-commit-config.yaml
repos:
- repo: https://github.com/Yelp/detect-secrets
rev: v1.5.0
hooks:
- id: detect-secrets
args: ['--baseline', '.secrets.baseline']
exclude: package.lock.json
Inline Allowlisting
There are times when we want to exclude a false positive from blocking a commit, without creating a baseline to do so. You can do so by adding a comment as such:
secret = "hunter2" # pragma: allowlist secret
or
// pragma: allowlist nextline secret
const secret = "hunter2";
Auditing Secrets in Baseline
$ detect-secrets audit --help
usage: detect-secrets audit [-h] [--diff] [--stats]
[--report] [--only-real | --only-false]
[--json]
filename [filename ...]
Auditing a baseline allows analysts to label results, and optimize plugins for
the highest signal-to-noise ratio for their environment.
positional arguments:
filename Audit a given baseline file to distinguish the difference
between false and true positives.
optional arguments:
-h, --help show this help message and exit
--diff Allows the comparison of two baseline files, in order to
effectively distinguish the difference between various plugin
configurations.
--stats Displays the results of an interactive auditing session which
have been saved to a baseline file.
--report Displays a report with the secrets detected
reporting:
Display a summary with all the findings and the made decisions. To be used with the report mode (--report).
--only-real Only includes real secrets in the report
--only-false Only includes false positives in the report
analytics:
Quantify the success of your plugins based on the labelled results in your
baseline. To be used with the statistics mode (--stats).
--json Outputs results in a machine-readable format.
Configuration
This tool operates through a system of plugins and filters.
- Plugins find secrets in code
- Filters ignore false positives to increase scanning precision
You can adjust both to suit your precision/recall needs.
Plugins
There are three different strategies we employ to try and find secrets in code:
-
Regex-based Rules
These are the most common type of plugin, and work well with well-structured secrets. These secrets can optionally be verified, which increases scanning precision. However, solely depending on these may negatively affect the recall of your scan.
-
Entropy Detector
This searches for "secret-looking" strings through a variety of heuristic approaches. This is great for non-structured secrets, but may require tuning to adjust the scanning precision.
-
Keyword Detector
This ignores the secret value, and searches for variable names that are often associated with assigning secrets with hard-coded values. This is great for "non-secret-looking" strings (e.g. le3tc0de passwords), but may require tuning filters to adjust the scanning precision.
Want to find a secret that we don't currently catch? You can also (easily) develop your own plugin, and use it with the engine! For more information, check out the plugin documentation.
Filters
detect-secrets comes with several different in-built filters that may suit your needs.
--exclude-lines
Sometimes, you want to be able to globally allow certain lines in your scan, if they match a specific pattern. You can specify a regex rule as such:
$ detect-secrets scan --exclude-lines 'password = (blah|fake)'
Or you can specify multiple regex rules as such:
$ detect-secrets scan --exclude-lines 'password = blah' --exclude-lines 'password = fake'
--exclude-files
Sometimes, you want to be able to ignore certain files in your scan. You can specify a regex pattern to do so, and if the filename meets this regex pattern, it will not be scanned:
$ detect-secrets scan --exclude-files '.*\.signature$'
Or you can specify multiple regex patterns as such:
$ detect-secrets scan --exclude-files '.*\.signature$' --exclude-files '.*/i18n/.*'
--exclude-secrets
Sometimes, you want to be able to ignore certain secret values in your scan. You can specify a regex rule as such:
$ detect-secrets scan --exclude-secrets '(fakesecret|\${.*})'
Or you can specify multiple regex rules as such:
$ detect-secrets scan --exclude-secrets 'fakesecret' --exclude-secrets '\${.*})'
Inline Allowlisting
Sometimes, you want to apply an exclusion to a specific line, rather than globally excluding it. You can do so with inline allowlisting as such:
API_KEY = 'this-will-ordinarily-be-detected-by-a-plugin' # pragma: allowlist secret
These comments are supported in multiple languages. e.g.
const GoogleCredentialPassword = "something-secret-here"; // pragma: allowlist secret
You can also use:
# pragma: allowlist nextline secret
API_KEY = 'WillAlsoBeIgnored'
This may be a convenient way for you to ignore secrets, without needing to regenerate the entire baseline again. If you need to explicitly search for these allowlisted secrets, you can also do:
$ detect-secrets scan --only-allowlisted
Want to write more custom logic to filter out false positives? Check out how to do this in our filters documentation.
Extensions
wordlist
The --exclude-secrets flag allows you to specify regex rules to exclude secret values. However,
if you want to specify a large list of words instead, you can use the --word-list flag.
To use this feature, be sure to install the pyahocorasick package, or simply use:
$ pip install detect-secrets[word_list]
Then, you can use it as such:
$ cat wordlist.txt
not-a-real-secret
$ cat sample.ini
password = not-a-real-secret
# Will show results
$ detect-secrets scan sample.ini
# No results found
$ detect-secrets scan --word-list wordlist.txt
Gibberish Detector
The Gibberish Detector is a simple ML model, that attempts to determine whether a secret value is actually gibberish, with the assumption that real secret values are not word-like.
To use this feature, be sure to install the gibberish-detector package, or use:
$ pip install detect-secrets[gibberish]
Check out the gibberish-detector package for more information on how to train the model. A pre-trained model (seeded by processing RFCs) will be included for easy use.
You can also specify your own model as such:
$ detect-secrets scan --gibberish-model custom.model
This is not a default plugin, given that this will ignore secrets such as password.
Caveats
This is not meant to be a sure-fire solution to prevent secrets from entering the codebase. Only proper developer education can truly do that. This pre-commit hook merely implements several heuristics to try and prevent obvious cases of committing secrets.
Things That Won't Be Prevented:
- Multi-line secrets
- Default passwords that don't trigger the
KeywordDetector(e.g.login = "hunter2")
FAQ
General
-
"Did not detect git repository." warning encountered, even though I'm in a git repo.
Check to see whether your
gitversion is >= 1.8.5. If not, please upgrade it then try again. More details here.
Windows
-
detect-secrets auditdisplays "Not a valid baseline file!" after creating baseline.Ensure the file encoding of your baseline file is UTF-8. More details here.
Repo liên quan
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Trả lời nhanh
Đọc thêm về Yelp/detect-secrets ở đâu?
Trang TopGit này là một snapshot — tab "Readme" hiển thị nguyên văn README của repo (đã bỏ link, giữ ảnh). Repo GitHub ở github.com/Yelp/detect-secrets là nguồn chính thức.
Yelp/detect-secrets có phải mã nguồn mở không?
Có — Yelp/detect-secrets phát hành theo license Apache-2.0, nghĩa là mã nguồn mở để đọc, fork và (tùy license) tái sử dụng. Mã: github.com/Yelp/detect-secrets.
Yelp/detect-secrets là gì?
Yelp/detect-secrets (Yelp/detect-secrets) là dự án Python trên GitHub. Theo mô tả gốc: An enterprise friendly way of detecting and preventing secrets in code.
Đọc đầy đủ README ở tab phía trên.
Muốn nghe thêm một ý kiến về detect-secrets?
Hỏi một AI đọc được trang này — một cú bấm là có ngay nhận định về detect-secrets.