Malicious Code Injection in joko-pisang75-ruro: A Threat to npm Ecosystem
Summary
MAL-2025-104634: Malicious code in joko-pisang75-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'joko-pisang75-ruro' is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This campaign has been known to flood the npm registry with malicious packages that contain scripts designed to manipulate package metadata and inflate developer reputation scores. The package is designed to automatically generate and publish derivative packages, which can lead to significant pollution of the npm registry.
Vulnerability Detail
The vulnerability in 'joko-pisang75-ruro' originates from its malicious code, which modifies the package.json file to remove private flags and alters version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants. This behavior not only compromises the integrity of the npm registry but also poses a risk to developers who may unknowingly install these malicious packages, potentially leading to further exploitation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall joko-pisang75-ruroIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can avoid using the 'joko-pisang75-ruro' package and instead look for alternative packages that provide similar functionality without the associated risks. Additionally, you can use the following command to uninstall the package: npm uninstall joko-pisang75-ruro.
Conclusion
The 'joko-pisang75-ruro' package poses a significant risk due to its malicious code that alters package metadata and repopulates the npm registry with potentially harmful variants. It is crucial for developers to be vigilant and remove such packages from their projects to maintain the integrity of their applications.
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FAQ
It is an npm package associated with a token reward campaign that has been identified as malicious.
The vulnerability can lead to the installation of malicious code that modifies your project's metadata and can compromise the integrity of your application.
You should immediately uninstall the package and monitor your project for any unusual behavior.
Yes, tools like Vulert can help monitor and alert you in real-time for open-source vulnerabilities in your software.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without needing to sign up.
