Malicious Code Injection in kamasada-nusata-bunjsadab Package
Summary
MAL-2025-157327: Malicious code in kamasada-nusata-bunjsadab (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The kamasada-nusata-bunjsadab package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores. However, it has been identified as containing malicious code that modifies essential files and repurposes the package for harmful activities.
Vulnerability Detail
The vulnerability originates from the package's malicious payload, which alters the package.json file by removing private flags, changing version numbers, and generating random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially compromising the integrity of other packages. The malicious scripts included in the package (auto.js, autopublish.js, etc.) are specifically designed to automate these harmful actions.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall kamasada-nusata-bunjsadabIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can monitor your package dependencies using tools like Vulert. Vulert allows you to check for vulnerabilities in your application without needing to access the code or install additional software. You can use the Vulert playground at https://vulert.com/scanner to check if your application is affected by this vulnerability.
Conclusion
The kamasada-nusata-bunjsadab package contains malicious code that poses a significant risk to developers and their projects. It is crucial to remove this package and monitor your dependencies to maintain the integrity of your applications.
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FAQ
It is an npm package associated with the tea.xyz token reward campaign, designed to automate the generation of derivative packages.
The malicious code modifies your package.json file, removes private flags, and generates random package names, which can lead to the pollution of the npm registry.
You should uninstall the kamasada-nusata-bunjsadab package immediately using the command 'npm uninstall kamasada-nusata-bunjsadab'.
Yes, regularly monitor your dependencies using tools like Vulert and ensure you only use trusted packages.
There is no patch for this specific package; the recommended action is to uninstall it.
