GitPhish – Automated Tool Targets GitHub Device Code Phishing

Security researchers have released GitPhish, a new open-source tool designed to automate GitHub Device Code Phishing attacks, addressing significant operational challenges that previously limited the effectiveness and scalability of these social engineering techniques.

The tool, developed by Mason Davis and published on July 1, 2025, aims to help security teams better understand and defend against sophisticated phishing attacks targeting GitHub repositories and software supply chains.

Addressing Critical Authentication Vulnerabilities

GitHub Device Code Phishing exploits OAuth 2.0 Device Authorization Grant implementations, transforming simple eight-digit codes and phone calls into comprehensive organizational compromises.

The technique traditionally faced significant limitations, particularly the 15-minute expiration window for device codes, which forced attackers to maintain active engagement with targets and severely restricted scalability.

These constraints often compromised the quality of social engineering ruses, as attackers had to rush targets through authentication processes.

GitPhish revolutionizes this attack vector through two core innovations.

First, the platform automatically deploys professional landing pages on GitHub Pages, creating instant credibility with targets while guiding them through the Device Code login flow.

This approach eliminates the need for attackers to manually create convincing websites manually, significantly reducing preparation time and increasing attack sophistication.

Second, the tool implements dynamic device code generation, starting the expiration timer only when targets interact with the phishing attempt rather than when the attack is initiated.

This dynamic approach enables red team operators to execute multi-target GitHub Device Code Phishing campaigns without worrying about device code expiration, fundamentally changing the scalability of these attacks.

The platform can be operated through both command-line interfaces and web dashboards, providing comprehensive logging, analytics, and token management capabilities for security professionals.

Empowering Defensive Security Operations

The release of GitPhish serves a crucial defensive purpose, explicitly designed for security teams conducting assessments and building detection capabilities around Device Code Phishing in GitHub environments.

Red team operators can now simulate realistic attack scenarios to test organizational resilience, while detection engineers can validate their ability to identify suspicious OAuth flows, unusual GitHub authentication patterns, and potential social engineering attempts.

The tool’s accessibility further enhances its value for security professionals.

Installation requires only Python and a GitHub personal access token, taking minutes to complete. Security teams can clone the repository, execute pip install commands, launch the dashboard, and deploy professional landing pages within minutes.

The repository includes extensive documentation with real-world examples specifically tailored for red team and detection engineering scenarios.

This open-source approach democratizes access to advanced phishing simulation capabilities, enabling organizations of all sizes to better understand and defend against increasingly sophisticated social engineering attacks targeting their development infrastructure and software supply chains.

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