CVE-2019-5856 Explained : Impact and Mitigation

Google Chrome prior to version 76.0.3809.87 had a vulnerability due to insufficient policy enforcement in storage, allowing a remote attacker to bypass site isolation.

Understanding CVE-2019-5856

This CVE highlights a security issue in Google Chrome that could be exploited by a remote attacker.

What is CVE-2019-5856?

Prior to version 76.0.3809.87, Google Chrome lacked adequate policy enforcement in storage, enabling a remote attacker to bypass site isolation.

The Impact of CVE-2019-5856

The vulnerability allowed a compromised renderer process to bypass site isolation using a specially crafted HTML page.

Technical Details of CVE-2019-5856

Google Chrome's vulnerability is detailed below.

Vulnerability Description

Insufficient policy enforcement in storage in Google Chrome allowed a remote attacker to bypass site isolation through a crafted HTML page.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 76.0.3809.87

Exploitation Mechanism

The attacker, having compromised the renderer process, could exploit the vulnerability using a specifically designed HTML page.

Mitigation and Prevention

Protect your system from CVE-2019-5856 with the following steps.

Immediate Steps to Take

Update Google Chrome to version 76.0.3809.87 or later.
Be cautious while browsing and avoid suspicious websites.

Long-Term Security Practices

Regularly update your browser and other software to the latest versions.
Implement strong security measures and use reputable security software.

Patching and Updates

Stay informed about security updates for Google Chrome and apply them promptly.