S4E

Git File Disclosure Scanner

This scanner detects the use of Git Mailmap File Disclosure in digital assets.

Short Info


Level

Low

Single Scan

Single Scan

Can be used by

Asset Owner

Estimated Time

10 seconds

Time Interval

23 days 12 hours

Scan only one

URL

Toolbox

-

Git is a widely used version control system that helps developers track changes in their codebases. It supports collaboration among multiple team members, enabling efficient workflows. Git is essential for managing projects of all sizes, offering capabilities such as branching, merging, and distributed version tracking. It integrates with platforms like GitHub and GitLab, enhancing code hosting and review processes. Organizations rely on Git to streamline software development and ensure code quality. It is a tool of choice for developers in diverse fields, powering numerous open-source projects.

The vulnerability detected by this scanner is a file disclosure issue related to the .mailmap file in Git repositories. The .mailmap file is intended to map different author names and emails to a single identity, but when exposed, it can inadvertently reveal sensitive information. File disclosure vulnerabilities like this can lead to unauthorized access to internal data. This exposure could potentially highlight patterns of collaboration that were meant to be kept private. Protecting such files from external access is crucial in maintaining organizational security.

The technical details of this vulnerability involve the exposure of the .mailmap file via HTTP requests. When accessible, this file can be downloaded and inspected, exposing the email addresses and name mappings used in the repository. Attackers may exploit this information to perform social engineering attacks or gather intelligence about the development team. Ensuring that these files are not accessible through web servers is a key aspect of securing Git repositories from unauthorized disclosures.

When exploited, this file disclosure vulnerability can lead to several negative outcomes. Sensitive developer information, such as email addresses, can be harvested by attackers, leading to targeted phishing attacks. Unauthorized users might gain insights into the contributor structure of a project, potentially exposing business relationships. The disclosure could also compromise the privacy of contributors, leading to reputational harm. Therefore, mitigating this exposure is crucial for protecting sensitive organizational assets and preserving privacy.

REFERENCES

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