CVE-2020-6493 : Security Advisory and Response

A use after free vulnerability in WebAuthentication in Google Chrome before version 83.0.4103.97 could allow a remote attacker to potentially escape the sandbox.

Understanding CVE-2020-6493

This CVE involves a specific type of vulnerability in Google Chrome that could be exploited by attackers.

What is CVE-2020-6493?

CVE-2020-6493 is a use after free vulnerability in WebAuthentication in Google Chrome before version 83.0.4103.97. This flaw could be abused by a remote attacker who compromised the renderer process to execute a sandbox escape using a maliciously crafted HTML page.

The Impact of CVE-2020-6493

The impact of this vulnerability is significant as it could lead to a potential sandbox escape, allowing attackers to execute arbitrary code on the affected system.

Technical Details of CVE-2020-6493

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is classified as a use after free issue in WebAuthentication in Google Chrome, specifically before version 83.0.4103.97.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: Less than 83.0.4103.97

Exploitation Mechanism

The vulnerability could be exploited by a remote attacker who has compromised the renderer process, leveraging a carefully crafted HTML page to trigger a sandbox escape.

Mitigation and Prevention

Protecting systems from CVE-2020-6493 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Google Chrome to version 83.0.4103.97 or newer to mitigate the vulnerability.
Be cautious while browsing and avoid clicking on suspicious links or visiting untrusted websites.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement strong security measures such as firewalls and antivirus software to prevent attacks.

Patching and Updates

Ensure that all systems running Google Chrome are regularly updated with the latest security patches to address vulnerabilities like CVE-2020-6493.