CVE-2023-28103 : Security Advisory and Response

This CVE-2023-28103 involves a security vulnerability related to prototype pollution in matrix-react-sdk. The issue was identified as being of high severity with a CVSS base score of 8.2. It was published on March 28, 2023.

Understanding CVE-2023-28103

This section delves into the details of CVE-2023-28103, shedding light on what exactly this vulnerability entails and its potential impact.

What is CVE-2023-28103?

The CVE-2023-28103 vulnerability is associated with the matrix-react-sdk, which is a Matrix chat protocol SDK for React Javascript. It arises from improper control of the modification of object prototype attributes, also known as 'Prototype Pollution'. This vulnerability could lead to disruptions in the matrix-react-sdk functionality, causing denial of service and potentially impacting program logic.

The Impact of CVE-2023-28103

The impact of CVE-2023-28103 is significant, with a high CVSS base score of 8.2. When exploited, it could result in a high availability impact, affecting the normal operation of the matrix-react-sdk. The integrity impact is low, but the potential disruption to services is considerable.

Technical Details of CVE-2023-28103

In this section, we will explore the technical aspects of CVE-2023-28103, including the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in matrix-react-sdk arises from the improper control of object prototype attributes, allowing for potential modifications that can disrupt the SDK's functionality and lead to denial of service.

Affected Systems and Versions

The affected system in this case is the matrix-react-sdk with versions lower than 3.69.0. Users utilizing versions prior to 3.69.0 are at risk of being impacted by this vulnerability.

Exploitation Mechanism

By sending data with special strings in key locations, remote servers can trigger modifications to the

Object.prototype

, thereby exploiting the vulnerability and potentially causing disruptions to the matrix-react-sdk functionality.

Mitigation and Prevention

Mitigating CVE-2023-28103 requires immediate action to secure affected systems and prevent exploitation in the future. This section outlines the necessary steps to take for protection.

Immediate Steps to Take

Users are strongly advised to upgrade to matrix-react-sdk version 3.69.0 or higher, where the vulnerability has been addressed. Upgrading to the latest version will help safeguard against potential exploits resulting from this vulnerability.

Long-Term Security Practices

In the long term, it is essential for organizations and individuals to prioritize regular security assessments, updates, and patches to mitigate the risk of similar vulnerabilities in software applications. Implementing robust security measures and staying informed about security advisories is crucial for maintaining a secure system environment.

Patching and Updates

Regularly monitoring for security updates and applying patches promptly is key to staying protected against emerging threats. Keeping software and libraries up to date helps ensure that known vulnerabilities are addressed and the overall system security is maintained at an optimal level.