CVE-2021-32477 : Vulnerability Insights and Analysis

This article provides details about CVE-2021-32477, a vulnerability affecting Moodle versions 3.10 to 3.10.3 that allows unauthorized users to view sensitive information.

Understanding CVE-2021-32477

CVE-2021-32477 is a security vulnerability in Moodle versions 3.10 to 3.10.3 that improperly displays the last time a user accessed the mobile app on their profile page. This information should only be visible to users with the relevant capabilities, such as site administrators.

What is CVE-2021-32477?

The vulnerability in CVE-2021-32477 enables unauthorized users to access the sensitive data showing the last mobile app access timestamp on user profiles in Moodle. This information should be restricted to specific privileged users.

The Impact of CVE-2021-32477

The impact of CVE-2021-32477 can lead to a breach of user privacy and security as unauthorized individuals can gather sensitive information about user activity on the mobile app, potentially compromising user accounts.

Technical Details of CVE-2021-32477

The technical details of CVE-2021-32477 include:

Vulnerability Description

The vulnerability allows unauthorized users to view the last time a user accessed the mobile app on their profile page, exposing sensitive information that should be protected.

Affected Systems and Versions

Moodle versions 3.10 to 3.10.3 are affected by this vulnerability, putting users of these versions at risk of unauthorized access to sensitive data.

Exploitation Mechanism

Unauthorized users can exploit this vulnerability by simply accessing a user's profile page in Moodle versions 3.10 to 3.10.3 to view the last mobile app access timestamp without the necessary privileges.

Mitigation and Prevention

It is crucial to take immediate action to mitigate the risks associated with CVE-2021-32477. Here are some steps to consider:

Immediate Steps to Take

Upgrade to a patched version of Moodle that addresses the vulnerability.
Restrict access to user profile pages to only authorized personnel.

Long-Term Security Practices

Regularly monitor and update Moodle installations to ensure they are secure.
Educate users on best practices for maintaining privacy and security on online platforms.

Patching and Updates

Stay informed about security updates and patches released by Moodle to address CVE-2021-32477 and other potential vulnerabilities.