CVE-2023-30591 Explained : Impact and Mitigation

A detailed report on the NodeBB Pre-Authentication Denial-of-Service vulnerability (CVE-2023-30591).

Understanding CVE-2023-30591

This section provides an overview of the NodeBB Pre-Authentication Denial-of-Service vulnerability.

What is CVE-2023-30591?

The CVE-2023-30591 vulnerability in NodeBB <= v2.8.10 allows unauthenticated attackers to trigger a crash by invoking specific functions while processing crafted Socket.IO messages.

The Impact of CVE-2023-30591

This vulnerability has a CVSS base score of 7.5 (High) and can result in a denial-of-service condition, impacting the availability of the NodeBB software.

Technical Details of CVE-2023-30591

In this section, we delve into the technical aspects of the CVE-2023-30591 vulnerability.

Vulnerability Description

The vulnerability allows unauthenticated attackers to crash NodeBB by sending specially crafted Socket.IO messages.

Affected Systems and Versions

NodeBB versions up to and including v2.8.10 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious Socket.IO messages containing specific data types for event names.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2023-30591.

Immediate Steps to Take

Apply the provided patches or updates from NodeBB to address the vulnerability promptly.

Long-Term Security Practices

Implement secure coding practices and regularly update NodeBB to prevent similar vulnerabilities.

Patching and Updates

Refer to the following links for patches and updates:

Third-Party Advisory
Patch 1
Patch 2
Patch 3