TruffleHog
Find leaked credentials.
---
[](https://goreportcard.com/report/github.com/trufflesecurity/trufflehog/v3)
[](/LICENSE)
[](/pkg/detectors)
---
# :mag_right: _Now Scanning_
**...and more**
# :loudspeaker: Join Our Community
Have questions? Feedback? Jump in slack or discord and hang out with us
Join our [Slack Community](https://join.slack.com/t/trufflehog-community/shared_invite/zt-pw2qbi43-Aa86hkiimstfdKH9UCpPzQ)
Join the [Secret Scanning Discord](https://discord.gg/8Hzbrnkr7E)
# :tv: Demo
```bash
docker run --rm -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest github --org=trufflesecurity
```
# :floppy_disk: Installation
Several options available for you:
```bash
# MacOS users
brew install trufflesecurity/trufflehog/trufflehog
# Docker
docker run --rm -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest github --repo https://github.com/trufflesecurity/test_keys
# Docker for M1 and M2 Mac
docker run --platform linux/arm64 --rm -it -v "$PWD:/pwd" trufflesecurity/trufflehog:latest github --repo https://github.com/trufflesecurity/test_keys
# Binary releases
Download and unpack from https://github.com/trufflesecurity/trufflehog/releases
# Compile from source
git clone https://github.com/trufflesecurity/trufflehog.git
cd trufflehog; go install
# Using installation script
curl -sSfL https://raw.githubusercontent.com/trufflesecurity/trufflehog/main/scripts/install.sh | sh -s -- -b /usr/local/bin
# Using installation script to install a specific version
curl -sSfL https://raw.githubusercontent.com/trufflesecurity/trufflehog/main/scripts/install.sh | sh -s -- -b /usr/local/bin
```
# :rocket: Quick Start
## 1: Scan a repo for only verified secrets
Command:
```bash
trufflehog git https://github.com/trufflesecurity/test_keys --only-verified
```
Expected output:
```
🐷🔑🐷 TruffleHog. Unearth your secrets. 🐷🔑🐷
Found verified result 🐷🔑
Detector Type: AWS
Decoder Type: PLAIN
Raw result: AKIAYVP4CIPPERUVIFXG
Line: 4
Commit: fbc14303ffbf8fb1c2c1914e8dda7d0121633aca
File: keys
Email: counter
Repository: https://github.com/trufflesecurity/test_keys
Timestamp: 2022-06-16 10:17:40 -0700 PDT
...
```
## 2: Scan a GitHub Org for only verified secrets
```bash
trufflehog github --org=trufflesecurity --only-verified
```
## 3: Scan a GitHub Repo for only verified keys and get JSON output
Command:
```bash
trufflehog git https://github.com/trufflesecurity/test_keys --only-verified --json
```
Expected output:
```
{"SourceMetadata":{"Data":{"Git":{"commit":"fbc14303ffbf8fb1c2c1914e8dda7d0121633aca","file":"keys","email":"counter \u003ccounter@counters-MacBook-Air.local\u003e","repository":"https://github.com/trufflesecurity/test_keys","timestamp":"2022-06-16 10:17:40 -0700 PDT","line":4}}},"SourceID":0,"SourceType":16,"SourceName":"trufflehog - git","DetectorType":2,"DetectorName":"AWS","DecoderName":"PLAIN","Verified":true,"Raw":"AKIAYVP4CIPPERUVIFXG","Redacted":"AKIAYVP4CIPPERUVIFXG","ExtraData":{"account":"595918472158","arn":"arn:aws:iam::595918472158:user/canarytokens.com@@mirux23ppyky6hx3l6vclmhnj","user_id":"AIDAYVP4CIPPJ5M54LRCY"},"StructuredData":null}
...
```
## 4: Scan a GitHub Repo + its Issues and Pull Requests.
```bash
trufflehog github --repo=https://github.com/trufflesecurity/test_keys --issue-comments --pr-comments
```
## 5: Scan an S3 bucket for verified keys
```bash
trufflehog s3 --bucket= --only-verified
```
## 6: Scan S3 buckets using IAM Roles
```bash
trufflehog s3 --role-arn=
```
## 7: Scan a Github Repo using SSH authentication in docker
```bash
docker run --rm -v "$HOME/.ssh:/root/.ssh:ro" trufflesecurity/trufflehog:latest git ssh://github.com/trufflesecurity/test_keys
```
## 8: Scan individual files or directories
```bash
trufflehog filesystem path/to/file1.txt path/to/file2.txt path/to/dir
```
## 9: Scan GCS buckets for verified secrets.
```bash
trufflehog gcs --project-id= --cloud-environment --only-verified
```
## 10: Scan a Docker image for verified secrets.
Use the `--image` flag multiple times to scan multiple images.
```bash
trufflehog docker --image trufflesecurity/secrets --only-verified
```
# :question: FAQ
+ All I see is `🐷🔑🐷 TruffleHog. Unearth your secrets. 🐷🔑🐷` and the program exits, what gives?
+ That means no secrets were detected
+ Why is the scan taking a long time when I scan a GitHub org
+ Unauthenticated GitHub scans have rate limits. To improve your rate limits, include the `--token` flag with a personal access token
+ It says a private key was verified, what does that mean?
+ Check out our Driftwood blog post to learn how to do this, in short we've confirmed the key can be used live for SSH or SSL [Blog post](https://trufflesecurity.com/blog/driftwood-know-if-private-keys-are-sensitive/)
+ Is there an easy way to ignore specific secrets?
+ If the scanned source [supports line numbers](https://github.com/trufflesecurity/trufflehog/blob/d6375ba92172fd830abb4247cca15e3176448c5d/pkg/engine/engine.go#L358-L365), then you can add a `trufflehog:ignore` comment on the line containing the secret to ignore that secrets.
# :newspaper: What's new in v3?
TruffleHog v3 is a complete rewrite in Go with many new powerful features.
- We've **added over 700 credential detectors that support active verification against their respective APIs**.
- We've also added native **support for scanning GitHub, GitLab, filesystems, S3, GCS and Circle CI**.
- **Instantly verify private keys** against millions of github users and **billions** of TLS certificates using our [Driftwood](https://trufflesecurity.com/blog/driftwood) technology.
- Scan binaries and other file formats
- Available as a GitHub Action and a pre-commit hook
## What is credential verification?
For every potential credential that is detected, we've painstakingly implemented programmatic verification against the API that we think it belongs to. Verification eliminates false positives. For example, the [AWS credential detector](pkg/detectors/aws/aws.go) performs a `GetCallerIdentity` API call against the AWS API to verify if an AWS credential is active.
# :memo: Usage
TruffleHog has a sub-command for each source of data that you may want to scan:
- git
- github
- gitlab
- docker
- S3
- filesystem (files and directories)
- syslog
- circleci
- GCS (Google Cloud Storage)
- stdin (coming soon)
Each subcommand can have options that you can see with the `--help` flag provided to the sub command:
```
$ trufflehog git --help
usage: TruffleHog git []
Find credentials in git repositories.
Flags:
--help Show context-sensitive help (also try --help-long and --help-man).
--debug Run in debug mode.
--trace Run in trace mode.
--profile Enables profiling and sets a pprof and fgprof server on :18066.
-j, --json Output in JSON format.
--json-legacy Use the pre-v3.0 JSON format. Only works with git, gitlab, and github sources.
--concurrency=10 Number of concurrent workers.
--no-verification Don't verify the results.
--only-verified Only output verified results.
--filter-unverified Only output first unverified result per chunk per detector if there is more than one result.
--config=CONFIG Path to configuration file.
--print-avg-detector-time Print the average time spent on each detector.
--no-update Don't check for updates.
--fail Exit with code 183 if results are found.
--version Show application version.
Args:
Git repository URL. https://, file://, or ssh:// schema expected.
```
For example, to scan a `git` repository, start with
```
$ trufflehog git https://github.com/trufflesecurity/trufflehog.git
```
## S3
The S3 source supports assuming IAM roles for scanning in addition to IAM users. This makes it easier for users to scan multiple AWS accounts without needing to rely on hardcoded credentials for each account.
The IAM identity that TruffleHog uses initially will need to have `AssumeRole` privileges as a principal in the [trust policy](https://aws.amazon.com/blogs/security/how-to-use-trust-policies-with-iam-roles/) of each IAM role to assume.
To scan a specific bucket using locally set credentials or instance metadata if on an EC2 instance:
```bash
trufflehog s3 --bucket=
```
To scan a specific bucket using an assumed role:
```bash
trufflehog s3 --bucket= --role-arn=
```
Multiple roles can be passed as separate arguments. The following command will attempt to scan every bucket each role has permissions to list in the S3 API:
```bash
trufflehog s3 --role-arn= --role-arn=
```
Exit Codes:
- 0: No errors and no results were found.
- 1: An error was encountered. Sources may not have completed scans.
- 183: No errors were encountered, but results were found. Will only be returned if `--fail` flag is used.
# :octocat: TruffleHog Github Action
```yaml
- name: TruffleHog
uses: trufflesecurity/trufflehog@main
with:
# Repository path
path:
# Start scanning from here (usually main branch).
base:
# Scan commits until here (usually dev branch).
head: # optional
# Extra args to be passed to the trufflehog cli.
extra_args: --debug --only-verified
```
The TruffleHog OSS Github Action can be used to scan a range of commits for leaked credentials. The action will fail if
any results are found.
For example, to scan the contents of pull requests you could use the following workflow:
```yaml
name: TruffleHog Secrets Scan
on: [pull_request]
jobs:
TruffleHog:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v3
with:
fetch-depth: 0
- name: TruffleHog OSS
uses: trufflesecurity/trufflehog@main
with:
path: ./
base: ${{ github.event.repository.default_branch }}
head: HEAD
extra_args: --debug --only-verified
```
# Pre-commit Hook
Trufflehog can be used in a pre-commit hook to prevent credentials from leaking before they ever leave your computer.
An example `.pre-commit-config.yaml` is provided (see [pre-commit.com](https://pre-commit.com/) for installation).
```yaml
repos:
- repo: local
hooks:
- id: trufflehog
name: TruffleHog
description: Detect secrets in your data.
entry: bash -c 'trufflehog git file://. --since-commit HEAD --only-verified --fail'
# For running trufflehog in docker, use the following entry instead:
# entry: bash -c 'docker run --rm -v "$(pwd):/workdir" -i --rm trufflesecurity/trufflehog:latest git file:///workdir --since-commit HEAD --only-verified --fail'
language: system
stages: ["commit", "push"]
```
# Regex Detector (alpha)
Trufflehog supports detection and verification of custom regular expressions.
For detection, at least one **regular expression** and **keyword** is required.
A **keyword** is a fixed literal string identifier that appears in or around
the regex to be detected. To allow maximum flexibility for verification, a
webhook is used containing the regular expression matches.
Trufflehog will send a JSON POST request containing the regex matches to a
configured webhook endpoint. If the endpoint responds with a `200 OK` response
status code, the secret is considered verified.
**NB:** This feature is alpha and subject to change.
## Regex Detector Example
```yaml
# config.yaml
detectors:
- name: hog detector
keywords:
- hog
regex:
adjective: hogs are (\S+)
verify:
- endpoint: http://localhost:8000/
# unsafe must be set if the endpoint is HTTP
unsafe: true
headers:
- 'Authorization: super secret authorization header'
```
```
$ trufflehog filesystem /tmp --config config.yaml --only-verified
🐷🔑🐷 TruffleHog. Unearth your secrets. 🐷🔑🐷
Found verified result 🐷🔑
Detector Type: CustomRegex
Decoder Type: PLAIN
Raw result: hogs are cool
File: /tmp/hog-facts.txt
```
## Verification Server Example (Python)
Unless you run a verification server, secrets found by the custom regex
detector will be unverified. Here is an example Python implementation of a
verification server for the above `config.yaml` file.
```python
import json
from http.server import BaseHTTPRequestHandler, HTTPServer
AUTH_HEADER = 'super secret authorization header'
class Verifier(BaseHTTPRequestHandler):
def do_GET(self):
self.send_response(405)
self.end_headers()
def do_POST(self):
try:
if self.headers['Authorization'] != AUTH_HEADER:
self.send_response(401)
self.end_headers()
return
# read the body
length = int(self.headers['Content-Length'])
request = json.loads(self.rfile.read(length))
self.log_message("%s", request)
# check the match
if request['hog detector']['adjective'][-1] == 'cool':
self.send_response(200)
self.end_headers()
else:
# any other response besides 200
self.send_response(406)
self.end_headers()
except Exception:
self.send_response(400)
self.end_headers()
with HTTPServer(('', 8000), Verifier) as server:
try:
server.serve_forever()
except KeyboardInterrupt:
pass
```
# :heart: Contributors
This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].
# :computer: Contributing
Contributions are very welcome! Please see our [contribution guidelines first](CONTRIBUTING.md).
We no longer accept contributions to TruffleHog v2, but that code is available in the `v2` branch.
## Adding new secret detectors
We have published some [documentation and tooling to get started on adding new secret detectors](hack/docs/Adding_Detectors_external.md). Let's improve detection together!
# Use as a library
Currently, trufflehog is in heavy development and no guarantees can be made on
the stability of the public APIs at this time.
# License Change
Since v3.0, TruffleHog is released under a AGPL 3 license, included in [`LICENSE`](LICENSE). TruffleHog v3.0 uses none of the previous codebase, but care was taken to preserve backwards compatibility on the command line interface. The work previous to this release is still available licensed under GPL 2.0 in the history of this repository and the previous package releases and tags. A completed CLA is required for us to accept contributions going forward.
# :money_with_wings: Enterprise product
Are you interested in continuously monitoring your Git, Jira, Slack, Confluence, etc.. for credentials? We have an enterprise product that can help. Reach out here to learn more https://trufflesecurity.com/contact/
We take the revenue from the enterprise product to fund more awesome open source projects that the whole community can benefit from.