Malicious Code Injection in witty_leopard_z3n: A Threat to npm Packages
Summary
MAL-2025-97395: Malicious code in witty_leopard_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'witty_leopard_z3n' is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This campaign has been known to flood the npm registry with packages that contain malicious scripts. The primary function of these packages is to generate and publish derivative packages with randomized names, which can inflate developer reputation scores for token rewards. This behavior poses a significant risk to the integrity of the npm registry and the security of applications relying on these packages.
Vulnerability Detail
The vulnerability in 'witty_leopard_z3n' originates from its design to include autopublish scripts that modify the package.json file. These modifications remove private flags, alter version numbers, and generate random package names, leading to the continuous republishing of variants that pollute the npm registry. The ramifications include potential exposure of sensitive data, unauthorized access to systems, and a compromised npm ecosystem, making it crucial for developers to address this issue promptly.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall witty_leopard_z3nIf 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 'witty_leopard_z3n' package and look for alternative packages that provide similar functionality without the associated risks. Additionally, consider using tools like Vulert to monitor your package-lock.json for vulnerabilities.
Conclusion
The 'witty_leopard_z3n' package poses a significant security risk due to its malicious code designed to manipulate npm packages. Developers are urged to remove this package and monitor their applications for vulnerabilities. Utilizing tools like Vulert can enhance security by providing real-time alerts for open-source vulnerabilities.
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FAQ
It is an npm package associated with the tea.xyz token reward campaign, known for containing malicious scripts.
The vulnerability can lead to unauthorized modifications of your package.json file and potential exposure of sensitive data.
You should uninstall the package immediately and monitor your application for any unusual behavior.
Yes, you can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities without any signup.
