Malicious Code Injection in jurss-zss-drs Package: A Threat to npm Users
Summary
MAL-2025-157231: Malicious code in jurss-zss-drs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The jurss-zss-drs package is part of a broader campaign that exploits the npm ecosystem, specifically targeting developers involved in token reward programs. This package, like others in the campaign, is designed to manipulate the npm registry by generating and publishing numerous derivative packages with altered metadata. Its primary function is to inflate developer reputation scores for rewards, but this comes at the cost of security and integrity within the npm ecosystem.
Vulnerability Detail
The vulnerability stems from the malicious code embedded within the jurss-zss-drs package, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior not only compromises the integrity of the affected package but also pollutes the npm registry with numerous derivative packages, potentially leading to confusion and misuse by developers. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which has been known to flood the npm registry with such malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall jurss-zss-drsIf 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 jurss-zss-drs package and any other packages associated with the tea.xyz token reward campaign. Additionally, consider using tools like Vulert to monitor your project's dependencies 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 jurss-zss-drs package poses a significant threat to npm users due to its malicious code designed to manipulate the npm registry. It is crucial to uninstall this package and monitor your dependencies for vulnerabilities to maintain the integrity of your projects.
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FAQ
The jurss-zss-drs package is a malicious npm package that is part of a campaign to inflate developer reputation scores through the creation of numerous derivative packages.
The malicious code modifies your package.json file, removes private flags, and generates random package names, which can lead to confusion and potential security risks.
You should uninstall the jurss-zss-drs package immediately using npm uninstall jurss-zss-drs and check for any other affected packages in your project.
Regularly monitor your dependencies using tools like Vulert, which can alert you to open-source vulnerabilities in real-time.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without requiring any signup.
