CVE-2021-21147 : Vulnerability Insights and Analysis

Inappropriate implementation in Skia in Google Chrome prior to version 88.0.4324.146 allowed a local attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Understanding CVE-2021-21147

This CVE identifies a vulnerability in Google Chrome that could enable a local attacker to manipulate the URL bar contents.

What is CVE-2021-21147?

The vulnerability arises from an inappropriate implementation in Skia within Google Chrome, enabling a local attacker to spoof the Omnibox contents.

The Impact of CVE-2021-21147

The exploitation of this vulnerability could allow a malicious actor to deceive users by displaying false information in the URL bar.

Technical Details of CVE-2021-21147

The technical details include the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The flaw in the Skia implementation in Google Chrome allows a local attacker to manipulate the URL bar contents through a specially crafted HTML page.

Affected Systems and Versions

Google Chrome versions prior to 88.0.4324.146 are affected by this vulnerability.

Exploitation Mechanism

By exploiting the inappropriate Skia implementation, a local attacker can deceive users by displaying misleading information in the URL bar.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-21147, immediate steps can be taken along with long-term security practices and regular patching.

Immediate Steps to Take

Users should update their Google Chrome browser to version 88.0.4324.146 or newer to address this vulnerability.

Long-Term Security Practices

Adopting secure browsing habits, staying vigilant against phishing attempts, and keeping software up to date can enhance overall cybersecurity.

Patching and Updates

Regularly check for security updates for Google Chrome and apply patches promptly to prevent exploitation of known vulnerabilities.