Critical Malicious Code Vulnerability in ent-esign-newweb Package
Summary
MAL-2025-5910: Malicious code in ent-esign-newweb (npm). Affects ent-esign-newweb versions 9.9.9. No fix is published. How to fix ↓
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Background
The ent-esign-newweb package is an npm library designed for electronic signature functionalities in web applications. It provides developers with tools to integrate e-signature capabilities seamlessly. However, this package has been identified to contain malicious code, posing significant security risks to any system utilizing it.
Vulnerability Detail
The vulnerability stems from the presence of embedded malicious code within the ent-esign-newweb package. This code can compromise any computer that has the package installed, potentially allowing unauthorized access to sensitive information such as secrets and keys. The malicious nature of the code means that simply removing the package may not eliminate all traces of the compromise, as full control of the affected system may have been granted to an external entity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ent-esign-newwebIf 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 isolate the affected application from the network to prevent further unauthorized access while you work on removing the package and securing your system.
Conclusion
The ent-esign-newweb package has been identified as containing malicious code that poses serious security risks. Immediate action is required to remove the package and secure affected systems. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
Immediately remove the package and assess your system for any signs of compromise.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without needing to sign up.
Failure to address this vulnerability may lead to unauthorized access to sensitive data and complete control of your system by malicious actors.
After removing the package, it is essential to rotate all secrets and keys stored on the affected system and conduct a thorough security audit.
While removing the package is crucial, it does not guarantee complete security, as other malicious software may have been installed during the compromise.
