CVE-2021-29965 : What You Need to Know
Learn about CVE-2021-29965, a Firefox vulnerability allowing password suggestions for the wrong site. Find out how to mitigate risks and secure your system.
A malicious website that causes an HTTP Authentication dialog to be spawned could trick the built-in password manager to suggest passwords for the currently active website instead of the website that triggered the dialog. This bug only affects Firefox for Android. This vulnerability affects Firefox versions less than 89.
Understanding CVE-2021-29965
This CVE identifies a vulnerability in Firefox that could lead to domain spoofing through the password manager on Firefox for Android.
What is CVE-2021-29965?
The vulnerability allows a malicious website to manipulate the password manager in Firefox for Android, potentially leading to incorrect password suggestions.
The Impact of CVE-2021-29965
The impact of this vulnerability is that the password manager in affected Firefox versions could be tricked into suggesting passwords for the wrong website, putting user credentials at risk.
Technical Details of CVE-2021-29965
This section outlines the specific technical details of the vulnerability.
Vulnerability Description
A malicious website can spawn an HTTP Authentication dialog to mislead the password manager into suggesting passwords for the wrong website in Firefox for Android.
Affected Systems and Versions
The vulnerability affects Firefox for Android versions below 89.
Exploitation Mechanism
By triggering the HTTP Authentication dialog, a malicious website can manipulate the password manager's behavior to suggest incorrect passwords.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-29965, users and organizations should take immediate and long-term security measures.
Immediate Steps to Take
Users should refrain from saving passwords on Firefox for Android until the issue is resolved. Consider using alternative password management solutions.
Long-Term Security Practices
Regularly update Firefox to the latest version to ensure patches for known vulnerabilities are applied promptly. Implement strong, unique passwords for each website to minimize the impact of domain spoofing attacks.
Patching and Updates
Stay informed about security advisories from Mozilla and apply recommended patches promptly to secure systems and mitigate potential risks.