CVE-2021-43498 : Security Advisory and Response
Learn about CVE-2021-43498, an Access Control vulnerability in ATutor 2.2.4 due to improper handling of HTTP POST parameters. Find out the impact, affected systems, exploitation method, and mitigation steps.
An Access Control vulnerability exists in ATutor 2.2.4 in password_reminder.php when specific HTTP POST parameters are set.
Understanding CVE-2021-43498
What is CVE-2021-43498?
ATutor 2.2.4 is impacted by an Access Control vulnerability in password_reminder.php due to improper handling of certain HTTP POST parameters.
The Impact of CVE-2021-43498
This vulnerability could allow an attacker to manipulate HTTP POST parameters, leading to unauthorized access or other forms of exploitation.
Technical Details of CVE-2021-43498
Vulnerability Description
The vulnerability exists in the handling of parameters g, id, h, form_password_hidden, and form_change in ATutor 2.2.4's password_reminder.php file.
Affected Systems and Versions
- Affected Systems: ATutor 2.2.4
- Affected Versions: All versions of ATutor 2.2.4
Exploitation Mechanism
Attackers can exploit this issue by setting specific HTTP POST parameters that the application fails to validate properly.
Mitigation and Prevention
Immediate Steps to Take
- Disable password reset functionality if not essential
- Monitor network traffic for any suspicious activity
Long-Term Security Practices
- Regularly update ATutor to the latest version
- Conduct security audits and penetration testing periodically
Patching and Updates
Ensure that ATutor is updated to the latest version to patch this vulnerability.