shhgit finds secrets and sensitive files across GitHub (including Gists), GitLab and BitBucket committed in near real time.
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Finding secrets in GitHub is nothing new. There are many great tools available to help with this depending on which side of the fence you sit. On the adversarial side, popular tools such as gitrob and truggleHog focus on digging in to commit history to find secret tokens from specific repositories, users or organisations. On the defensive side, GitHub themselves are actively scanning for secrets through their token scanning project. Their objective is to identify secret tokens within committed code in real-time and notify the service provider to action. So in theory if any AWS secret keys are committed to GitHub, Amazon will be notified and automatically revoke them.
I developed shhgit to raise awareness and bring to life the prevalence of this issue. I hope GitHub will do more to prevent bad actors using the treasure trove of information across the platform. I don't know the inner-workings of their token scanning project but delaying the real-time feed API until the pipeline has completed and posing SLAs on the providers seems like a step in the right direction.
With some tweaking of the signatures shhgit would make an awesome addition to your bug bounty toolkit.
You can use the precompiled binaries or allow Go to build from source:
- Install Go for your platform.
go get github.com/eth0izzle/shhgitwill download and build shhgit automtically. Optionally you can clone this repository manually and runGO111MODULE=on CGO_ENABLED=0 go build -v -i -o shhgit.- See usage.
Or you can run from Docker:
- Grab a copy of the config.yaml and insert your github credentials (see Usage).
docker run -v $(pwd)/config.yaml:/config.yaml:ro eth0izzle/shhgit
shhgit can work in two ways: through the GitHub, GitLab and BitBucket public repoistorties or by processing files in a local directory.
By default, shhgit will run in the former 'public mode' and needs to access the public GitHub API. You will need to obtain and provide an access token. The API has a hard rate limit of 5,000 requests per hour per account, regardless what token is used. The more account-unique tokens you provide, the faster you can process the events. Follow this guide to generate a token; it doesn't require any scopes or permissions. And then place it under github_access_tokens in config.yaml. Note that it is against the GitHub terms to bypass their rate limits. Use multiple tokens at your own risk.
Unlike other tools, you don't need to pass any targets with shhgit. Simply run $ shhgit to start watching GitHub commits and find secrets or sensitive files matching the included 120 signatures. You can also forgo the signatures and use shhgit with a search query, e.g. to find all AWS keys you could use shhgit --search-query AWS_ACCESS_KEY_ID=AKIA
To run in local mode (and perhaps integrate in to your CI pipelines) you can pass the --local flag (see Usage below).
--clone-repository-timeout
Maximum time it should take to clone a repository in seconds (default 10)
--config-path
Searches for config.yaml from given directory. If not set, tries to find if from shhgit binary's and current directory
--csv-path
Specify a path if you want to write found secrets to a CSV. Leave blank to disable
--debug
Print debugging information
--entropy-threshold
Finds high entropy strings in files. Higher threshold = more secret secrets, lower threshold = more false positives. Set to 0 to disable entropy checks (default 5.0)
--local
Specify local directory (absolute path) which to scan. Scans only given directory recursively. No need to have Github tokens with local run.
--maximum-file-size
Maximum file size to process in KB (default 512)
--maximum-repository-size
Maximum repository size to download and process in KB) (default 5120)
--minimum-stars
Only clone repositories with this many stars or higher. Set to 0 to ignore star count (default 0)
--path-checks
Set to false to disable file name/path signature checking, i.e. just match regex patterns (default true)
--process-gists
Watch and process Gists in real time. Set to false to disable (default true)
--search-query
Specify a search string to ignore signatures and filter on files containing this string (regex compatible)
--silent
Suppress all output except for errors
--temp-directory
Directory to store repositories/matches (default "%temp%\shhgit")
--threads
Number of concurrent threads to use (default number of logical CPUs)
The config.yaml file has 7 elements. A default is provided.
github_access_tokens: # provide at least one token
- 'token one'
- 'token two'
webhook: '' # URL to a POST webhook.
webhook_payload: '' # Payload to POST to the webhook URL
blacklisted_extensions: [] # list of extensions to ignore
blacklisted_paths: [] # list of paths to ignore
blacklisted_entropy_extensions: [] # additional extensions to ignore for entropy checks
signatures: # list of signatures to check
- part: '' # either filename, extension, path or contents
match: '' # simple text comparison (if no regex element)
regex: '' # regex pattern (if no match element)
name: '' # name of the signature
shhgit comes with 120 signatures. You can remove or add more by editing config.yaml.
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- Fork it, baby!
- Create your feature branch:
git checkout -b my-new-feature - Commit your changes:
git commit -am 'Add some feature' - Push to the branch:
git push origin my-new-feature - Submit a pull request.
I take no responsibility for how you use this tool. Don't be a dick.
MIT. See LICENSE