CVE-2021-40695 : What You Need to Know
Learn about CVE-2021-40695, a Moodle container vulnerability enabling premature quiz grade viewing. Find out its impact, affected versions, and mitigation steps.
This CVE record involves a vulnerability in the Moodle container that allowed a student to view their quiz grade prematurely.
Understanding CVE-2021-40695
This section delves into the specifics of CVE-2021-40695.
What is CVE-2021-40695?
CVE-2021-40695 pertains to an information disclosure vulnerability in Moodle that enabled students to access quiz grades before the release.
The Impact of CVE-2021-40695
The vulnerability resulted in premature disclosure of quiz grades through the quiz web service, affecting the confidentiality of quiz data.
Technical Details of CVE-2021-40695
Exploring the technical aspects of the CVE.
Vulnerability Description
The flaw allowed students to view quiz grades before they were officially released, exploiting a quiz web service.
Affected Systems and Versions
- Product: Moodle
- Versions: 3.11 to 3.11.2, 3.10 to 3.10.6, 3.9 to 3.9.9, and earlier unsupported versions
Exploitation Mechanism
The vulnerability could be exploited by students to gain access to quiz grades before their scheduled release.
Mitigation and Prevention
Guidelines to address and prevent the vulnerability.
Immediate Steps to Take
- Upgrade Moodle to the latest supported version
- Monitor quiz grade access to detect unauthorized views
Long-Term Security Practices
- Regularly review and update user access controls
- Educate users on responsible data handling practices
- Conduct security assessments to identify vulnerabilities
Patching and Updates
Apply relevant patches and updates to ensure that Moodle remains secure against similar vulnerabilities in the future.