Arbitrary File Read Vulnerability in Node.js Package: CVE-2021-44534
Summary
UBUNTU-CVE-2021-44534: Insufficient user input filtering leads to arbitrary file read by non-authenticated attacker, which results in sensitive information disclosure. Affects nodejs versions 0.10.15~dfsg1-4 – 0.10.25~dfsg2-2ubuntu1.2+esm2. No fix is published. How to fix ↓
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Background
Node.js is a popular open-source JavaScript runtime built on Chrome's V8 JavaScript engine. It allows developers to build scalable network applications and is widely used for server-side programming. The package is known for its non-blocking, event-driven architecture, making it efficient for handling multiple connections simultaneously. However, it has been found to have a vulnerability that allows unauthorized access to sensitive information.
Vulnerability Detail
The vulnerability, identified as CVE-2021-44534, arises from insufficient user input filtering, which can lead to arbitrary file read by non-authenticated attackers. This flaw can result in the disclosure of sensitive information, potentially compromising user data and system integrity. The vulnerability affects various versions of the Node.js package across multiple Ubuntu LTS releases, making it critical for users to address it promptly.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can restrict access to sensitive files and directories by adjusting file permissions and implementing stricter input validation in their applications. This can help mitigate the risk of unauthorized file access until the package is updated.
Conclusion
CVE-2021-44534 is a significant vulnerability affecting the Node.js package across multiple Ubuntu LTS versions. It allows unauthorized file access, which can lead to sensitive information disclosure. Users are strongly advised to update their packages to the latest patched versions and implement necessary workarounds to safeguard their applications.
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FAQ
CVE-2021-44534 is a vulnerability in the Node.js package that allows unauthorized users to read arbitrary files, leading to potential information disclosure.
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The vulnerability can lead to unauthorized access to sensitive information, which may compromise user data and system security.
Yes, there are patched versions of the Node.js package available for various Ubuntu LTS releases. Users should update to the latest version to mitigate the risk.
The CVSS score of CVE-2021-44534 is 6.5, indicating a medium severity level.
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