CVE-2023-35167 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2023-35167, a vulnerability found in the Remult framework for TypeScript.

Understanding CVE-2023-35167

In this section, we will discuss what CVE-2023-35167 is, its impact, technical details, and mitigation strategies.

What is CVE-2023-35167?

CVE-2023-35167 involves a vulnerability in the Remult CRUD framework for full-stack TypeScript. When using the apiPrefilter option of the

@Entity

decorator as a function that returns a filter to prevent unauthorized data access, an attacker with knowledge of the entity's

id

can gain unauthorized access to read, update, and delete data.

The Impact of CVE-2023-35167

The impact of this vulnerability is significant as it allows unauthorized access to sensitive data, compromising data integrity and confidentiality.

Technical Details of CVE-2023-35167

Let's delve into the specifics of CVE-2023-35167 to understand the vulnerability better.

Vulnerability Description

The vulnerability arises when setting EntityOptions.apiPrefilter to a function, allowing unauthorized access to data by an attacker who knows the entity's

id

.

Affected Systems and Versions

The Remult framework versions prior to 0.20.6 are affected by this vulnerability.

Exploitation Mechanism

Attackers exploit the inadequate access control implemented through the apiPrefilter function, granting unauthorized access based on entity

id

.

Mitigation and Prevention

To prevent exploitation of CVE-2023-35167, immediate steps and long-term security practices are crucial.

Immediate Steps to Take

Update the Remult framework to version 0.20.6 or later to patch the vulnerability. Use filter objects instead of functions for the

apiPrefilter

option to mitigate the risk.

Long-Term Security Practices

Implement robust access control mechanisms and regularly update the framework to address security vulnerabilities proactively.

Patching and Updates

Refer to the following links for more information:

Remult Security Advisory
Remult Commit Details
Remult Release v0.20.6