Critical HTTP Request Smuggling Vulnerability in Node.js Package
Summary
UBUNTU-CVE-2016-2086: Node.js 0.10.x before 0.10.42, 0.12.x before 0.12.10, 4.x before 4.3.0, and 5.x before 5.6.0 allow remote attackers to conduct HTTP request smuggling attacks via a crafted Content-Length HTTP header. 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 runtime environment that allows developers to execute JavaScript code server-side. It is widely used for building scalable network applications. The affected versions of Node.js, specifically 0.10.x, 0.12.x, 4.x, and 5.x, have a vulnerability that can be exploited by remote attackers to conduct HTTP request smuggling attacks, compromising the integrity of web applications.
Vulnerability Detail
The vulnerability, identified as CVE-2016-2086, allows remote attackers to perform HTTP request smuggling by crafting a malicious Content-Length HTTP header. This can lead to unauthorized access to sensitive data, session hijacking, or even full system compromise. The flaw exists in multiple versions of Node.js prior to their respective patched releases, making it critical for users to address this issue promptly.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can implement additional validation on incoming HTTP headers to mitigate the risk of HTTP request smuggling. This can be done by using middleware in your application to check and sanitize headers before processing requests.
Conclusion
The CVE-2016-2086 vulnerability in Node.js poses a significant risk to applications that utilize affected versions. It is crucial for developers and system administrators to update their Node.js installations to the latest patched versions to mitigate potential security threats.
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FAQ
CVE-2016-2086 is a vulnerability in Node.js that allows remote attackers to conduct HTTP request smuggling attacks via a crafted Content-Length HTTP header.
The affected versions include Node.js 0.10.x before 0.10.42, 0.12.x before 0.12.10, 4.x before 4.3.0, and 5.x before 5.6.0.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.
Exploitation of this vulnerability can lead to unauthorized access to sensitive data, session hijacking, and potentially full system compromise.
Yes, there are patched versions available for the affected Node.js packages. Users should update to the latest secure version as outlined in the 'how to fix' section.
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