CVE-2021-43129 : Exploit Details and Defense Strategies
Discover how the Desire2Learn/D2L Brightspace quizzing feature is vulnerable to a bypass in CVE-2021-43129, enabling unauthorized access to print and copy functionality during quizzes. Learn mitigation strategies here.
A bypass exists for Desire2Learn/D2L Brightspace's "Disable Right Click" option in the quizzing feature, enabling quiz-takers to access print and copy functionality.
Understanding CVE-2021-43129
What is CVE-2021-43129?
Desire2Learn/D2L Brightspace's quizzing feature is prone to a bypass where users can access print and copy functions despite the "Disable Right Click" setting.
The Impact of CVE-2021-43129
This vulnerability allows quiz-takers to overcome the restriction of disabling right-click actions, potentially leading to unauthorized copying or printing of quiz content.
Technical Details of CVE-2021-43129
Vulnerability Description
The flaw in Desire2Learn/D2L Brightspace permits users to right-click and access print and copy functionalities during quizzes, even when the right-click option is disabled.
Affected Systems and Versions
- Product: Desire2Learn/D2L Brightspace
- Vendor: Desire2Learn/D2L
- Versions: All versions affected
Exploitation Mechanism
The vulnerability enables quiz-takers to circumvent the right-click disable feature and access print and copy options through the browser's menu.
Mitigation and Prevention
Immediate Steps to Take
- Disable the right-click disable feature in Desire2Learn/D2L Brightspace temporarily.
- Monitor quiz interactions for any suspicious activity.
Long-Term Security Practices
- Regularly update the Desire2Learn/D2L Brightspace platform to ensure patches and fixes are applied promptly.
Patching and Updates
Apply the latest patches and updates provided by Desire2Learn/D2L to address the bypass vulnerability effectively.