Malicious Code Injection in saku-au-idusani Package - npm Vulnerability
Summary
MAL-2025-165686: Malicious code in saku-au-idusani (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The saku-au-idusani package is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, which has been linked to a series of malicious activities aimed at inflating developer reputation scores. The package's functionality is compromised due to the presence of malicious scripts that manipulate its metadata and behavior.
Vulnerability Detail
The vulnerability originates from the saku-au-idusani package, which contains malicious code designed to modify the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior leads to the continuous republishing of these variants, polluting the npm registry and potentially compromising the integrity of other packages. The malicious payload is part of a broader scheme to exploit the npm ecosystem for token rewards.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall saku-au-idusaniIf 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 saku-au-idusani package and any other packages associated with the tea.xyz token reward campaign. Additionally, consider using tools 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 saku-au-idusani package poses a significant risk due to its malicious code that alters package metadata and contributes to the pollution of the npm registry. It is crucial to uninstall this package and monitor your projects for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your software.
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FAQ
The saku-au-idusani package is an npm package that has been linked to malicious activities aimed at manipulating the npm registry.
The malicious code modifies your package.json file, potentially leading to security vulnerabilities and the pollution of the npm registry.
You should uninstall the saku-au-idusani package immediately and monitor your project for any other vulnerabilities.
Yes, you can use Vulert to monitor and alert for open-source vulnerabilities in your software by analyzing your package-lock.json file.
Regularly update your packages, use trusted sources, and employ tools like Vulert to monitor for vulnerabilities in real-time.
