Rollup.js Exposure Scanner

Rollup.js is widely used as a module bundler in JavaScript to compile small pieces of code into larger, more complex applications. Developers and companies use it primarily for building and optimizing web applications, ensuring efficient code splitting and tree-shaking capabilities. The tool is appreciated for its ability to work with JavaScript modules, aiding developers in creating applications that are both complex and highly scalable. Its rich plugin ecosystem facilitates various development tasks, including conversion of non-JS files. Organizations rely on Rollup.js to streamline their building processes in CI/CD pipelines, ensuring consistent application delivery. Given its extensive use in development, any configuration missteps could lead to vulnerabilities that expose sensitive data.

The detected vulnerability is related to the exposure of Rollup.js configuration files. These files often contain sensitive information and settings that, if accessible, can lead to information leakage. Such exposures highlight the involvement of misconfigured access controls on files meant to be private. Rollup.js configurations typically set parameters for how code is bundled and should remain safeguarded to prevent unintended access. The misuse or mishandling of these files, especially in production environments, could inform attackers about application structure. This vulnerability could be exploited if the Rollup configuration is publicly accessible over a network. Therefore, proper handling and securing of these configuration files are necessary to avoid security pitfalls.

The configuration detail for Rollup.js contains default export settings which might include vulnerable file paths or sensitive data entries. The vulnerable endpoint in this context is the publicly accessible '/rollup.config.js' file, which may reveal crucial configuration settings. This includes input paths, default exports, or custom plugin configurations that should be inaccessible to unauthorized users. The criteria for detection include confirming the presence of specific key terms like 'export default' and 'input:' within the accessible configuration file. Failing to conceal these details invites potential misuse where malicious actors can leverage this information destructively or strategically against resources.

If an unauthorized entity gains access to exposed Rollup.js configuration files, it could lead to several detrimental effects. Sensitive aspects of the web application's structure might be revealed, facilitating further exploitation or attacks. This exposure can lead to unauthorized manipulation of the build process, injecting malicious content, or disrupting the deployed application. In environments where version control or build integrity is crucial, this vulnerability becomes a gateway for more severe security threats. It also heightens the risk of data disclosure, where confidential settings can be retrieved and used maliciously. Overall, this exposure stands as a stark risk that needs addressing to prevent data breaches and application compromises.

REFERENCES

• https://rollup.docschina.org/guide/en/#configuration-files