CVE-2022-31142 : Vulnerability Insights and Analysis

A potential timing attack vector has been identified in @fastify/bearer-auth plugin prior to versions 7.0.2 and 8.0.1. This CVE poses a high risk to confidentiality.

Understanding CVE-2022-31142

This CVE highlights a vulnerability in @fastify/bearer-auth related to timing attacks.

What is CVE-2022-31142?

The @fastify/bearer-auth plugin, versions 7.0.2 and 8.0.1, does not securely use crypto.timingSafeEqual, potentially allowing attackers to estimate the length of valid bearer tokens.

The Impact of CVE-2022-31142

The vulnerability poses a high-risk scenario for confidentiality, as malicious actors could exploit it to launch attacks.

Technical Details of CVE-2022-31142

This section covers specific technical aspects of the vulnerability.

Vulnerability Description

@fastify/bearer-auth plugin versions 7.0.2 and 8.0.1 are susceptible to a timing attack due to inadequate use of cryptographic functions.

Affected Systems and Versions

cna affected versions:

fastify-bearer-auth >= 5.0.1, < 7.0.2
fastify-bearer-auth = 8.0.0

Exploitation Mechanism

Attackers can estimate the length of a valid bearer token, compromising data confidentiality.

Mitigation and Prevention

To address CVE-2022-31142, users should take immediate steps and implement long-term security practices.

Immediate Steps to Take

Upgrade to patched versions 7.0.2 or 8.0.1 of @fastify/bearer-auth to mitigate the vulnerability.

Long-Term Security Practices

Regularly update software components and follow secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security advisories and apply patches promptly to protect against potential attacks.