Malicious Code Injection in erwin-pisang81-ruro: A Threat to npm Ecosystem
Summary
MAL-2025-102221: Malicious code in erwin-pisang81-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package erwin-pisang81-ruro is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, notorious for flooding npm with malicious packages. Its primary function appears to be related to generating and publishing derivative packages, which can inflate developer reputation scores for token rewards. However, this functionality has been compromised, leading to significant security concerns.
Vulnerability Detail
The vulnerability in erwin-pisang81-ruro stems from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is designed to continuously republish variants of the package, polluting the npm registry and potentially compromising other packages. The origin of this issue is linked to the tea.xyz token reward campaign, which employs autopublish scripts to automate the creation of these malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall erwin-pisang81-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 prevent the installation of this malicious package by using npm's package-lock.json file to monitor dependencies. Ensure that your project does not include erwin-pisang81-ruro in its dependencies. You can also utilize Vulert to monitor your project for vulnerabilities in real-time without requiring code access or installation.
Conclusion
The erwin-pisang81-ruro package poses a significant threat to the npm ecosystem due to its malicious behavior, which can compromise project integrity and pollute the npm registry. It is crucial to remove this package and monitor for updates to safeguard your applications.
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FAQ
erwin-pisang81-ruro is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores through the creation of derivative packages.
The vulnerability can lead to the pollution of the npm registry, potentially affecting other packages and compromising the integrity of your project.
You should remove the erwin-pisang81-ruro package from your project and monitor for any updates or patches that may be released.
Yes, Vulert can monitor your project for open-source vulnerabilities in real-time using just the package-lock.json file, ensuring you are alerted to any issues.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
