Malicious Code Injection in fajar-menjes22-ruro Package
Summary
MAL-2025-102517: Malicious code in fajar-menjes22-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The fajar-menjes22-ruro 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 for token rewards. However, it has been identified as containing malicious code that compromises the integrity of the npm registry.
Vulnerability Detail
The vulnerability originates from the package's malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially compromising other packages. The malicious scripts included in the package (auto.js, autopublish.js, etc.) are designed to automate these harmful actions, making it a significant threat to developers and users relying on the npm ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall fajar-menjes22-ruro
If 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 fajar-menjes22-ruro package and look for alternative packages that provide similar functionality without the associated risks. Additionally, you can monitor your project's dependencies using tools like Vulert, which can alert you to open-source vulnerabilities in real-time.
Conclusion
The fajar-menjes22-ruro package poses a significant risk due to its malicious code that modifies package.json files and repopulates the npm registry with harmful variants. It is crucial for developers to remove this package and monitor their dependencies to maintain the integrity of their projects.
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FAQ
The fajar-menjes22-ruro package is an npm package associated with a token reward campaign that automates the generation of derivative packages.
The vulnerability can lead to the pollution of the npm registry and compromise the integrity of your project's dependencies, potentially introducing malicious code.
You should uninstall the fajar-menjes22-ruro package immediately and check for any dependencies that may rely on it.
Yes, you can use Vulert to monitor your project's package-lock.json file for vulnerabilities without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.