Trufflehog : Find Credentials All Over The Place

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, and S3.
• Instantly verify private keys against millions of github users and billions of TLS certificates using our Driftwood technology.

What is credential verification?

For every potential credential that is detected, we’ve painstakingly implemented programatic verification against the API that we think it belongs to. Verification eliminates false positives. For example, the AWS credential detector performs a GetCallerIdentity API call against the AWS API to verify if an AWS credential is active.

Installation

Several options:

1. Go

git clone https://github.com/trufflesecurity/trufflehog.git
cd trufflehog; go install

2. Release binaries

3. Docker

Note: Apple M1 hardware users should run with docker run --platform linux/arm64 for better performance.

Most users

docker run -it -v “$PWD:/pwd” trufflesecurity/trufflehog:latest github –repo https://github.com/trufflesecurity/test_keys

Apple M1 users

The linux/arm64 image is better to run on the M1 than the amd64 image. Even better is running the native darwin binary avilable, but there is not container image for that.

docker run –platform linux/arm64 -it -v “$PWD:/pwd” trufflesecurity/trufflehog:latest github –repo https://github.com/trufflesecurity/test_keys

4. Pip (help wanted)

It’s possible to distribute binaries in pip wheels.

Here is an example of a project that does it.

Help with setting up this packaging would be appreciated!

5. Brew

brew tap trufflesecurity/trufflehog
brew install trufflehog

Usage

TruffleHog has a sub-command for each source of data that you may want to scan:

• git
• github
• gitlab
• S3
• filesystem
• syslog
• file and stdin (coming soon)

Each subcommand can have options that you can see with the -h 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
–version Prints trufflehog version.
-j, –json Output in JSON format.
–json-legacy Use the pre-v3.0 JSON format. Only works with git, gitlab, and github sources.
–concurrency=1 Number of concurrent workers.
–no-verification Don’t verify the results.
–only-verified Only output verified results.
–print-avg-detector-time Print the average time spent on each detector.
–no-update Don’t check for updates.
-i, –include-paths=INCLUDE-PATHS
Path to file with newline separated regexes for files to include in scan.
-x, –exclude-paths=EXCLUDE-PATHS
Path to file with newline separated regexes for files to exclude in scan.
–since-commit=SINCE-COMMIT
Commit to start scan from.
–branch=BRANCH Branch to scan.
–max-depth=MAX-DEPTH Maximum depth of commits to scan.
–allow No-op flag for backwards compat.
–entropy No-op flag for backwards compat.
–regex No-op flag for backwards compat.
Args:
Git repository URL. https:// or file:// schema expected.

For example, to scan a git repository, start with

$ trufflehog git https://github.com/trufflesecurity/trufflehog.git

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.

Scanning an organization

Try scanning an entire GitHub organization with the following

docker run -it -v “$PWD:/pwd” trufflesecurity/trufflehog:latest github –org=trufflesecurity

TruffleHog OSS Github Action

name: TruffleHog OSS
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

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:

name: Leaked 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@v3.4.3
with:
path: ./
base: ${{ github.event.repository.default_branch }}
head: HEAD