CVE-2022-31150 : What You Need to Know

This article provides detailed information about CVE-2022-31150, a vulnerability related to CRLF injection in request headers in undici Node.js package.

Understanding CVE-2022-31150

CVE-2022-31150 is a security vulnerability that allows attackers to inject CRLF sequences into request headers in undici Node.js package versions less than 5.7.1, potentially leading to various security risks.

What is CVE-2022-31150?

Undici is an HTTP/1.1 client developed for Node.js. The vulnerability in versions below 5.7.1 enables malicious actors to manipulate request headers by injecting CRLF sequences. A fix has been implemented in version 5.8.0.

The Impact of CVE-2022-31150

The CVSS base score for this vulnerability is 5.3, with a medium severity rating. It has a low attack complexity and impact on integrity, requiring no special privileges for exploitation. The vulnerability can be exploited over a network without user interaction, affecting the confidentiality and integrity of systems.

Technical Details of CVE-2022-31150

This section delves into further technical aspects of the CVE-2022-31150 vulnerability.

Vulnerability Description

The flaw allows threat actors to abuse CRLF injection to manipulate undici's request headers, potentially leading to various attacks like HTTP request smuggling.

Affected Systems and Versions

undici versions below 5.7.1 are vulnerable to this security issue. Users are advised to update to version 5.8.0 or newer to mitigate the risk.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting CRLF sequences into the request headers, enabling them to create malicious requests that manipulate the behavior of the HTTP server.

Mitigation and Prevention

To address CVE-2022-31150 and enhance security, users and developers should take the following measures.

Immediate Steps to Take

Upgrade undici to version 5.8.0 or later to eliminate the vulnerability.
Sanitize all HTTP headers to remove any CRLF sequences from untrusted sources.

Long-Term Security Practices

Regularly monitor for security advisories and updates related to undici.
Implement secure coding practices to prevent similar injection vulnerabilities.

Patching and Updates

Stay informed about patches and updates released by Node.js to address security vulnerabilities like CVE-2022-31150.