Malicious Code Vulnerability in polymer-intfsi-addutfdi: Exploitation of npm Registry
Summary
MAL-2025-164451: Malicious code in polymer-intfsi-addutfdi (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The polymer-intfsi-addutfdi package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate the development of applications by providing reusable code components. However, it has been identified as part of a malicious campaign that aims to manipulate the npm registry by flooding it with derivative packages, thereby compromising the integrity of the ecosystem.
Vulnerability Detail
The vulnerability in polymer-intfsi-addutfdi stems from its association with a malicious campaign that modifies the package.json file to remove private flags and alters version numbers. It generates random package names, primarily themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This can lead to developers unknowingly using compromised packages, which may introduce security risks and affect application performance.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall polymer-intfsi-addutfdiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the polymer-intfsi-addutfdi package and look for alternative packages that provide similar functionality without the associated risks. Additionally, you can monitor your project dependencies using tools like Vulert, which can alert you to vulnerabilities in real-time.
Conclusion
The polymer-intfsi-addutfdi package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry. It is crucial for developers to remain vigilant, remove affected packages, and utilize tools like Vulert for ongoing monitoring of vulnerabilities in their projects.
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FAQ
It is an npm package used in JavaScript development, but it has been compromised by malicious actors.
Using this compromised package can lead to security risks, including the potential for unauthorized access or data manipulation.
You should uninstall the package immediately and check for any alternative packages that can fulfill your needs.
You can use tools like Vulert, which monitors your package-lock.json file for vulnerabilities without requiring code access.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
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