CVE-2021-21170 : What You Need to Know

Google Chrome prior to version 89.0.4389.72 had an incorrect security UI in the Loader that allowed a remote attacker to spoof the contents of the Omnibox (URL bar) by compromising the renderer process with a crafted HTML page.

Understanding CVE-2021-21170

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-21170.

What is CVE-2021-21170?

The vulnerability in Google Chrome allowed attackers to manipulate the Omnibox content via a compromised renderer process.

The Impact of CVE-2021-21170

The security flaw enabled a remote attacker to spoof the contents of the URL bar, impacting user's browsing security and privacy.

Technical Details of CVE-2021-21170

Here we delve into the specifics of the vulnerability.

Vulnerability Description

The incorrect security UI in the Loader of Google Chrome facilitated spoofing of the Omnibox content by compromising the renderer process.

Affected Systems and Versions

Google Chrome versions prior to 89.0.4389.72 were susceptible to this vulnerability.

Exploitation Mechanism

Remote attackers could exploit this issue by utilizing a crafted HTML page to compromise the renderer process.

Mitigation and Prevention

This section outlines the steps to secure systems and prevent exploitation of this vulnerability.

Immediate Steps to Take

Users should update Google Chrome to version 89.0.4389.72 or higher to mitigate the risk of exploitation.

Long-Term Security Practices

Maintaining up-to-date browsers, implementing security best practices, and exercising caution while browsing can enhance overall security.

Patching and Updates

Regularly check for updates, apply patches promptly, and follow secure browsing habits to prevent security breaches.