Malicious Code Injection in universal_loon_z3n: A Threat to npm Packages
Summary
MAL-2025-110145: Malicious code in universal_loon_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'universal_loon_z3n' is part of a series of npm packages that have been identified as malicious. These packages are often linked to token reward campaigns, specifically the tea.xyz protocol, which aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of these packages lies in their ability to modify critical files and continuously republish variants, thereby polluting the npm registry.
Vulnerability Detail
The vulnerability in 'universal_loon_z3n' originates from its association with a malicious campaign that employs scripts to alter the package.json file. This includes removing private flags, changing version numbers, and generating random package names. The ramifications of this vulnerability are significant, as it can lead to the proliferation of unwanted packages in the npm registry, potentially compromising the integrity of applications that rely on npm for package management.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall universal_loon_z3nIf 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 'universal_loon_z3n' package and check your project for any dependencies that may have been affected by this malicious package. You can use the following command to check for vulnerabilities in your project: 'npm audit'.
Conclusion
The 'universal_loon_z3n' package poses a significant threat due to its malicious code that modifies essential package files and repopulates the npm registry with unwanted variants. It is crucial for developers to remove this package and monitor their projects for similar vulnerabilities to maintain application integrity.
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FAQ
It is an npm package identified as part of a malicious campaign that modifies package files to inflate developer reputation scores.
The vulnerability can lead to the introduction of unwanted packages in your application, potentially compromising its security and integrity.
You should uninstall the 'universal_loon_z3n' package immediately and check your project for any other affected dependencies.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time 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 signing up.
Habilume
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Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
