CVE-2020-6393 : Security Advisory and Response

Insufficient policy enforcement in Blink in Google Chrome prior to 80.0.3987.87 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

Understanding CVE-2020-6393

This CVE involves a vulnerability in Google Chrome that could be exploited by a remote attacker to access cross-origin data.

What is CVE-2020-6393?

CVE-2020-6393 is a security vulnerability in Google Chrome that arises from insufficient policy enforcement in Blink, allowing unauthorized access to cross-origin data through a specially crafted HTML page.

The Impact of CVE-2020-6393

The vulnerability could be exploited by a remote attacker to leak sensitive cross-origin data, potentially compromising user privacy and security.

Technical Details of CVE-2020-6393

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability in Blink in Google Chrome before version 80.0.3987.87 results from inadequate policy enforcement, enabling a remote attacker to access cross-origin data.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 80.0.3987.87
Version Type: Custom

Exploitation Mechanism

The vulnerability can be exploited by a remote attacker through a specially crafted HTML page to leak cross-origin data.

Mitigation and Prevention

Protecting systems from CVE-2020-6393 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Google Chrome to version 80.0.3987.87 or later to mitigate the vulnerability.
Avoid visiting untrusted websites or clicking on suspicious links to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement strong security measures such as firewalls and antivirus software to enhance overall system security.

Patching and Updates

Stay informed about security updates for Google Chrome and apply patches promptly to address any new vulnerabilities.