CVE-2023-29547 : Vulnerability Insights and Analysis

A security vulnerability has been identified in Firefox browsers for Android and desktop platforms, as well as Focus for Android, potentially leading to desynchronization of expected results when reading secure cookies.

Understanding CVE-2023-29547

This section delves into the details of the CVE-2023-29547 vulnerability.

What is CVE-2023-29547?

The vulnerability allowed the creation of an insecure cookie for the same domain where a secure cookie existed, resulting in potential desynchronization issues when accessing secure cookie data.

The Impact of CVE-2023-29547

The vulnerability affected Firefox for Android versions less than 112, Firefox versions less than 112, and Focus for Android versions less than 112. Attackers could exploit this issue to manipulate cookie data, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2023-29547

This section covers the technical aspects of the CVE-2023-29547 vulnerability.

Vulnerability Description

The vulnerability involved the improper handling of secure and insecure cookies in Firefox browsers, allowing the creation of insecure cookies that should have been rejected, leading to data desynchronization.

Affected Systems and Versions

Vendor: Mozilla
Affected Products:
Firefox for Android: Versions less than 112
Firefox: Versions less than 112
Focus for Android: Versions less than 112

Exploitation Mechanism

Attackers could exploit this vulnerability by creating insecure cookies alongside secure cookies on the same domain, potentially manipulating sensitive data and causing data desynchronization.

Mitigation and Prevention

In this section, we discuss the steps to mitigate and prevent CVE-2023-29547.

Immediate Steps to Take

Users are advised to update their Firefox browsers for Android, Firefox, and Focus for Android to versions 112 or higher to address the vulnerability and prevent potential cookie manipulation.

Long-Term Security Practices

Ensure regular updates of browsers and applications to safeguard against known vulnerabilities and implement secure cookie management practices to minimize risks of desynchronization and unauthorized data access.

Patching and Updates

Stay informed about security advisories from Mozilla and promptly apply patches and updates to address identified vulnerabilities and enhance the security posture of the affected systems.