Malicious Code Injection in maman-taiwan18-ruro: A Threat to npm Ecosystem
Summary
MAL-2025-105570: Malicious code in maman-taiwan18-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'maman-taiwan18-ruro' is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to inflate developer reputation scores by automatically generating and publishing derivative packages with randomized names. This behavior poses a significant risk to the integrity of the npm registry and can lead to the proliferation of malicious code.
Vulnerability Detail
The vulnerability in 'maman-taiwan18-ruro' originates from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This allows the package to continuously republish variants, polluting the npm registry and potentially compromising other packages. The malicious scripts included (auto.js, autopublish.js, etc.) are designed to automate this process, making it difficult for developers to track and mitigate the risks associated with these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall maman-taiwan18-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, avoid using the 'maman-taiwan18-ruro' package and monitor your dependencies regularly. You can also use tools like Vulert to check for vulnerabilities in your package-lock.json without requiring code access or installation.
Conclusion
The 'maman-taiwan18-ruro' package poses a significant threat due to its malicious code that alters package configurations and repopulates the npm registry. It is essential to remove this package and monitor your dependencies for vulnerabilities to maintain the security of your projects.
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FAQ
The main issue is that it contains malicious code that modifies package.json files and repopulates the npm registry with harmful variants.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If you have installed the 'maman-taiwan18-ruro' package, you should uninstall it immediately using 'npm uninstall maman-taiwan18-ruro'.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software by analyzing your package-lock.json.
Using this package can lead to the pollution of the npm registry, compromise the integrity of your application, and expose your project to further security risks.
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