Critical Malicious Code Vulnerability in web-shell-core Package
Summary
MAL-2025-5738: Malicious code in web-shell-core (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The web-shell-core package is an npm library designed for web shell functionalities, allowing users to execute commands on a server through a web interface. While it offers useful features for developers, it has been found to contain malicious code that compromises the security of any system where it is installed. This vulnerability poses significant risks, as it can lead to unauthorized access and control over affected systems.
Vulnerability Detail
The vulnerability identified in the web-shell-core package is classified as malicious code embedded within the software. This code can grant attackers full control over any computer that has the package installed, leading to potential data breaches and unauthorized access to sensitive information. The origin of this vulnerability is linked to the package's malicious intent, as it appears to be designed to exploit users rather than provide legitimate functionality. The ramifications of this vulnerability are severe, as it compromises the integrity and security of the affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall web-shell-coreIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, ensure that the web-shell-core package is uninstalled from your project. You can do this by executing the following command in your terminal: npm uninstall web-shell-core. Additionally, monitor your systems for any signs of unauthorized access or malicious activity.
Conclusion
The web-shell-core package contains a critical vulnerability due to embedded malicious code, which can compromise the security of any system where it is installed. Immediate action is required to uninstall the package and secure your system. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.
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FAQ
The web-shell-core package is an npm library that allows users to execute commands on a server through a web interface, but it has been found to contain malicious code.
The malicious code can grant attackers full control over your system, leading to potential data breaches and unauthorized access to sensitive information.
You should immediately uninstall the web-shell-core package and rotate all secrets and keys stored on the affected computer.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. You can check your application using the Vulert playground without any signup.
While removing the package is essential, there is no guarantee that all malicious software resulting from its installation will be removed. It is crucial to monitor your system for any signs of compromise.
