Malicious Code Vulnerability in ucok-poke39: Exploitation of npm Registry
Summary
MAL-2025-169659: Malicious code in ucok-poke39 (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
ucok-poke39 is an npm package that appears to be part of a token reward campaign associated with the tea.xyz protocol. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores. However, it has been compromised to include malicious scripts that manipulate package metadata and republish variants, leading to pollution of the npm registry.
Vulnerability Detail
The vulnerability in ucok-poke39 originates from its involvement in a malicious campaign that modifies the package.json file to remove private flags and change version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to the npm registry. This not only compromises the integrity of the affected package but also poses a risk to developers who may unknowingly install these malicious versions, potentially leading to further exploitation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ucok-poke39If 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 ucok-poke39 and any packages that depend on it. Additionally, consider using a tool like Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.
Conclusion
The ucok-poke39 package has been identified as containing malicious code that compromises the npm registry and poses a risk to developers. It is crucial to remove this package from your projects and monitor for any further vulnerabilities using tools like Vulert. Staying informed and proactive is key to maintaining the security of your software.
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FAQ
ucok-poke39 is an npm package involved in a token reward campaign that has been compromised to include malicious code.
The vulnerability can lead to the installation of malicious packages that modify your project's metadata and potentially introduce further security risks.
You can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without needing to sign up.
You should uninstall the package immediately using 'npm uninstall ucok-poke39' and monitor your project for any further vulnerabilities.
Yes, Vulert provides a service that monitors your package-lock.json for vulnerabilities in real-time, alerting you to any issues.
