CVE-2021-36402 : Vulnerability Insights and Analysis

A detailed analysis of CVE-2021-36402 focusing on the Moodle application vulnerability.

Understanding CVE-2021-36402

In Moodle, Users' names required additional sanitizing in the account confirmation email to prevent a self-registration phishing risk.

What is CVE-2021-36402?

The CVE-2021-36402 vulnerability in Moodle arises from inadequate sanitization of users' names in account confirmation emails, exposing users to potential self-registration phishing attempts.

The Impact of CVE-2021-36402

This vulnerability allows threat actors to manipulate the account confirmation email, leading to phishing attacks and unauthorized accesses.

Technical Details of CVE-2021-36402

Explore the technical aspects of the vulnerability.

Vulnerability Description

The issue lies in the insufficient sanitization of users' names, making it easier for malicious actors to impersonate users via phishing emails.

Affected Systems and Versions

Moodle versions 3.11, 3.10 to 3.10.4, 3.9 to 3.9.7, and earlier unsupported versions are impacted by this security flaw.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious content into the confirmation email, tricking users into divulging sensitive information.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-36402.

Immediate Steps to Take

Organizations should sanitize users' names properly in confirmation emails and educate users about phishing risks.

Long-Term Security Practices

Regular security training, email filtering, and user awareness programs can help in preventing such phishing attacks.

Patching and Updates

Update Moodle to the latest patched version to address this vulnerability and avoid potential exploitation.