CVE-2021-21216 Explained : Impact and Mitigation

Google Chrome prior to version 90.0.4430.72 was affected by an inappropriate implementation in Autofill, enabling a remote attacker to spoof security UI through a specially crafted HTML page.

Understanding CVE-2021-21216

This section provides insights into the nature and impact of the CVE-2021-21216 vulnerability.

What is CVE-2021-21216?

The vulnerability in Google Chrome versions prior to 90.0.4430.72 allowed a remote attacker to deceive security mechanisms via a manipulated HTML page.

The Impact of CVE-2021-21216

The security flaw permitted threat actors to create deceptive UI elements, potentially leading users to disclose sensitive information unknowingly.

Technical Details of CVE-2021-21216

Explore the technical aspects of CVE-2021-21216 to understand its implications and severity.

Vulnerability Description

The flaw arose from improper implementation in Autofill, granting malicious actors the ability to spoof security prompts.

Affected Systems and Versions

Google Chrome versions earlier than 90.0.4430.72 were susceptible to this vulnerability, emphasizing the importance of prompt updates.

Exploitation Mechanism

An attacker could exploit this flaw by crafting a malicious HTML page to trick users into interacting with fake security UI.

Mitigation and Prevention

Learn how to address and mitigate the risks associated with CVE-2021-21216 to enhance your cybersecurity posture.

Immediate Steps to Take

Users are advised to update Google Chrome to version 90.0.4430.72 or later to eliminate the vulnerability and enhance security.

Long-Term Security Practices

Implement secure browsing habits, such as avoiding suspicious links and downloads, to mitigate the risk of falling victim to similar attacks.

Patching and Updates

Regularly apply security patches and updates provided by Google Chrome to safeguard against known vulnerabilities and bolster defense mechanisms.