Github search is quite powerful and useful feature and can be used to search sensitive data on the repositories. Collection of github dorks that can reveal sensitive personal and/or organizational information such as private keys, credentials, authentication tokens, etc. This list is supposed to be useful for assessing security and performing pen-testing of systems.

GitHub Dork Search Tool
github-dork.py is a simple python tool that can search through your repository or your organization/user repositories. Its not a perfect tool at the moment but provides a basic functionality to automate the search on your repositories against the dorks specified in text file.

Installation
This tool uses github3.py to talk with GitHub Search API.
Clone this repository and run:

Usage

GH_USER  - Environment variable to specify github user
GH_PWD   - Environment variable to specify password
GH_TOKEN - Environment variable to specify github token
GH_URL   - Environment variable to specify GitHub Enterprise base URL

Some example usages are listed below:

Limitations

• Authenticated requests get a higher rate limit. But, since this tool waits for the api rate limit to be reset (which is usually less than a minute), it can be slightly slow.
• Output formatting is not great. PR welcome
• Handle rate limit and retry. PR welcome

Contribution
Please consider contributing the dorks that can reveal potentially sensitive information in github.

List of Dorks
I am not categorizing at the moment. Instead I am going to just the list of dorks with a description. Many of the dorks can be modified to make the search more specific or generic. You can see more options here.

Dork	Description
filename:.npmrc _auth	npm registry authentication data
filename:.dockercfg auth	docker registry authentication data
extension:pem private	private keys
extension:ppk private	puttygen private keys
filename:id_rsa or filename:id_dsa	private ssh keys
extension:sql mysql dump	mysql dump
extension:sql mysql dump password	mysql dump look for password; you can try varieties
filename:credentials aws_access_key_id	might return false negatives with dummy values
filename:.s3cfg	might return false negatives with dummy values
filename:wp-config.php	wordpress config files
filename:.htpasswd	htpasswd files
filename:.env DB_USERNAME NOT homestead	laravel .env (CI, various ruby based frameworks too)
filename:.env MAIL_HOST=smtp.gmail.com	gmail smtp configuration (try different smtp services too)
filename:.git-credentials	git credentials store, add NOT username for more valid results
PT_TOKEN language:bash	pivotaltracker tokens
filename:.bashrc password	search for passwords, etc. in .bashrc (try with .bash_profile too)
filename:.bashrc mailchimp	variation of above (try more variations)
filename:.bash_profile aws	aws access and secret keys
rds.amazonaws.com password	Amazon RDS possible credentials
extension:json api.forecast.io	try variations, find api keys/secrets
extension:json mongolab.com	mongolab credentials in json configs
extension:yaml mongolab.com	mongolab credentials in yaml configs (try with yml)
jsforce extension:js conn.login	possible salesforce credentials in nodejs projects
SF_USERNAME salesforce	possible salesforce credentials
filename:.tugboat NOT _tugboat	Digital Ocean tugboat config
HEROKU_API_KEY language:shell	Heroku api keys
HEROKU_API_KEY language:json	Heroku api keys in json files
filename:.netrc password	netrc that possibly holds sensitive credentials
filename:_netrc password	netrc that possibly holds sensitive credentials
filename:hub oauth_token	hub config that stores github tokens
filename:robomongo.json	mongodb credentials file used by robomongo
filename:filezilla.xml Pass	filezilla config file with possible user/pass to ftp
filename:recentservers.xml Pass	filezilla config file with possible user/pass to ftp
filename:config.json auths	docker registry authentication data
filename:idea14.key	IntelliJ Idea 14 key, try variations for other versions
filename:config irc_pass	possible IRC config
filename:connections.xml	possible db connections configuration, try variations to be specific
filename:express.conf path:.openshift	openshift config, only email and server thou
filename:.pgpass	PostgreSQL file which can contain passwords
filename:proftpdpasswd	Usernames and passwords of proftpd created by cpanel
filename:ventrilo_srv.ini	Ventrilo configuration
[WFClient] Password= extension:ica	WinFrame-Client infos needed by users to connect toCitrix Application Servers
filename:server.cfg rcon password	Counter Strike RCON Passwords
JEKYLL_GITHUB_TOKEN	Github tokens used for jekyll
filename:.bash_history	Bash history file
filename:.cshrc	RC file for csh shell
filename:.history	history file (often used by many tools)
filename:.sh_history	korn shell history
filename:sshd_config	OpenSSH server config
filename:dhcpd.conf	DHCP service config
filename:prod.exs NOT prod.secret.exs	Phoenix prod configuration file
filename:prod.secret.exs	Phoenix prod secret
filename:configuration.php JConfig password	Joomla configuration file
filename:config.php dbpasswd	PHP application database password (e.g., phpBB forum software)
path:sites databases password	Drupal website database credentials
shodan_api_key language:python	Shodan API keys (try other languages too)
filename:shadow path:etc	Contains encrypted passwords and account information of new unix systems
filename:passwd path:etc	Contains user account information including encrypted passwords of traditional unix systems
extension:avastlic "support.avast.com"	Contains license keys for Avast! Antivirus
filename:dbeaver-data-sources.xml	DBeaver config containing MySQL Credentials
filename:.esmtprc password	esmtp configuration
extension:json googleusercontent client_secret	OAuth credentials for accessing Google APIs
HOMEBREW_GITHUB_API_TOKEN language:shell	Github token usually set by homebrew users
xoxp OR xoxb	Slack bot and private tokens
.mlab.com password	MLAB Hosted MongoDB Credentials
filename:logins.json	Firefox saved password collection (key3.db usually in same repo)
filename:CCCam.cfg	CCCam Server config file
msg nickserv identify filename:config	Possible IRC login passwords
filename:settings.py SECRET_KEY	Django secret keys (usually allows for session hijacking, RCE, etc)
filename:secrets.yml password	Usernames/passwords, Rails applications
filename:master.key path:config	Rails master key (used for decrypting credentials.yml.enc for Rails 5.2+)
filename:deployment-config.json	Created by sftp-deployment for Atom, contains server details and credentials
filename:.ftpconfig	Created by remote-ssh for Atom, contains SFTP/SSH server details and credentials
filename:.remote-sync.json	Created by remote-sync for Atom, contains FTP and/or SCP/SFTP/SSH server details and credentials
filename:sftp.json path:.vscode	Created by vscode-sftp for VSCode, contains SFTP/SSH server details and credentails
filename:sftp-config.json	Created by SFTP for Sublime Text, contains FTP/FTPS or SFTP/SSH server details and credentials
filename:WebServers.xml	Created by Jetbrains IDEs, contains webserver credentials with encoded passwords (not encrypted!)