Discover New Bug Bounty Angles with Leaked Data
Bug bounty hunting has become a sophisticated field where hunters need to stay updated with new techniques and approaches. Leveraging leaked credentials can provide a significant advantage.
Whiteintel Team
Intelligence Division
This post dives deep into what leaked credentials and stealer logs are, how to find valuable assets with OSINT tools, and highlights critical SaaS services and CI/CD pipeline tools to target. Additionally, we will discuss nuances such as redirection to Microsoft for authorization and the importance of enumerating paths for hidden login pages.
What Are Leaked Credentials and Stealers?
Leaked credentials are sets of login details that have been exposed due to data breaches or malware logs. Stealer malware is designed to collect information from compromised systems, such as usernames, passwords, and cookies. These credentials often surface on dark-web forums and marketplaces, presenting both risks and opportunities for security professionals.
Incorporating leaked credentials into your bug bounty work--ethically and within program policies--can help you identify high-value vulnerabilities, especially when combined with detailed OSINT enumeration.
Increase Your Impact with OSINT Tools
OSINT tools can reveal exposed services and applications that might be overlooked. By integrating OSINT with leaked credential analysis, you can uncover assets such as SaaS instances and CI/CD platforms. Below are key tools and techniques:
Top OSINT Tools and Techniques
-
Subfinder:
Discovers subdomains (e.g.,
admin.target.com,jira.target.atlassian.net). -
Fofa:
Searches for exposed services like Jira and GitLab. Queries:
domain="atlassian.net". -
Shodan:
Scans for exposed devices. Use terms like
http.title:"Jira". -
Amass:
Maps subdomains and identifies exposed services like
ci.target.com. -
ffuf / GoBuster:
Invaluable for brute-forcing directories (e.g.,
/login,/admin) to find hidden portals.
Redirection to Microsoft for Authorization
In some cases, SaaS services are configured to redirect users to Microsoft for authentication through Azure AD. This adds an extra layer of complexity but can be a strong indicator of other accessible login endpoints that bypass the standard Microsoft flow.
Key Points: When encountering such redirection, look for alternate paths and login pages that might not be protected by SSO. Use ffuf and GoBuster to enumerate directories like /login.do, /auth, and /user.
Examples of High-Value SaaS Panels and CI/CD Tools
Below are examples of SaaS platforms and CI/CD tools that bug bounty hunters should target. These tools often contain critical data and are commonly found on subdomains.
SaaS Panels
- Jira: Exposes project management data.
- Confluence: Reveals internal documentation.
- ServiceNow: Service management info.
- Salesforce: Customer data and CRM records.
- Bitbucket: Source code and configs.
- Slack: Team communication.
CI/CD Pipeline Tools
- Jenkins: Build and deployment configs.
- GitLab CI/CD: Automated build deployment.
- TeamCity: Sensitive configurations.
- Travis CI: Check for environment variables.
- CircleCI: Pipeline secrets.
- Azure DevOps: Comprehensive code management.
Identifying SaaS Instances and Hidden Login Pages
To maximize your findings, enumerate paths using tools like ffuf to scan for login endpoints. If initial subdomain enumeration yields no results, directly enumerate subdomains for popular SaaS domains (e.g., subfinder -d atlassian.net) and grep for your target's name.
Add a little bit of Sauce - Search with Whiteintel
Whiteintel.io provides powerful search capabilities that allow you to search by domain names, subdomain names, and email addresses. With our advanced search filters, you can quickly identify affected SaaS credentials related to your bug bounty target.
Sample Report Template for Submission
Title: [Unauthorized Access to [SaaS/CI/CD Panel] for [Target Name]]
Summary: A vulnerability was discovered on [e.g., jira.company.atlassian.net] using leaked credentials and OSINT tools...
Details:
- Asset Type: [e.g., Jira panel]
- Discovery Method: Leaked credentials + OSINT
- Login Endpoints: [e.g., /login.do]
Steps to Reproduce:
- Access the target URL.
- Log in using verified credentials [following ethical guidelines].
- Note the presence of sensitive data.
How Whiteintel Helps Bug Bounty Researchers
Whiteintel is committed to empowering bug bounty researchers. Our newly launched Researcher License is tailored specifically for verified bug bounty hunters, offering exclusive access to extensive breach data, advanced search features, and real-time updates.
The Researcher License enables hunters to deepen their investigations, save valuable time, and submit high-impact reports by validating unauthorized access to systems using responsible methods.
To learn more about the Researcher License, contact us via the form at whiteintel.io.