CVE-2021-36393 : Security Advisory and Response

A SQL injection risk was identified in Moodle, specifically in the library fetching a user's recent courses.

Understanding CVE-2021-36393

This CVE-2021-36393 article provides insights into the SQL injection vulnerability found in the Moodle platform.

What is CVE-2021-36393?

The CVE-2021-36393 pertains to an SQL injection risk discovered in Moodle's library responsible for retrieving a user's recent courses.

The Impact of CVE-2021-36393

The SQL injection vulnerability in the Moodle platform could allow attackers to execute malicious SQL queries, potentially leading to unauthorized access to sensitive data or even complete system takeover.

Technical Details of CVE-2021-36393

Get a closer look at the specific technical aspects surrounding CVE-2021-36393.

Vulnerability Description

The vulnerability lies within the library that handles fetching a user's recent courses and could be exploited by injecting malicious SQL queries.

Affected Systems and Versions

Moodle versions 3.11, 3.10 to 3.10.4, and 3.9 to 3.9.7, along with earlier unsupported versions, are affected by CVE-2021-36393.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting crafted SQL queries via the user's recent courses interface, leading to potential data breaches.

Mitigation and Prevention

Discover the necessary steps to mitigate and prevent the risks associated with CVE-2021-36393.

Immediate Steps to Take

Users of affected Moodle versions should apply relevant security patches immediately after release to mitigate the SQL injection risk.

Long-Term Security Practices

Implement secure coding practices, conduct regular security audits, and educate users on SQL injection risks to enhance overall cybersecurity posture.

Patching and Updates

Stay informed about security updates from Moodle and promptly apply patches to ensure protection against known vulnerabilities.