CVE-2020-14451 Explained : Impact and Mitigation

An issue was discovered in Mattermost Mobile Apps before 1.29.0. The iOS app allowed Single Sign-On cookies and Local Storage to remain after a logout, aka MMSA-2020-0013.

Understanding CVE-2020-14451

This CVE identifies a security issue in Mattermost Mobile Apps that could potentially impact user security.

What is CVE-2020-14451?

CVE-2020-14451 refers to a vulnerability in Mattermost Mobile Apps that allows Single Sign-On cookies and Local Storage to persist even after a user logs out, potentially exposing sensitive information.

The Impact of CVE-2020-14451

The vulnerability could lead to unauthorized access to user data and compromise user privacy and security.

Technical Details of CVE-2020-14451

This section provides more technical insights into the vulnerability.

Vulnerability Description

The iOS app of Mattermost Mobile Apps before version 1.29.0 fails to clear Single Sign-On cookies and Local Storage upon user logout, leaving sensitive data accessible.

Affected Systems and Versions

Product: Mattermost Mobile Apps
Vendor: N/A
Versions Affected: N/A

Exploitation Mechanism

Attackers could potentially exploit this vulnerability to access user accounts and sensitive information even after users have logged out.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Users should ensure they are using the latest version of Mattermost Mobile Apps that includes a fix for this vulnerability.
Clear browser cookies and local storage after logging out of the application.

Long-Term Security Practices

Regularly update the mobile app to the latest version to patch known security issues.
Implement Single Sign-On best practices to enhance security.

Patching and Updates

Mattermost has released version 1.29.0, which addresses this vulnerability. Users are advised to update to this version or newer to mitigate the risk of exploitation.