CVE-2020-15973 : Security Advisory and Response

Google Chrome prior to 86.0.4240.75 is affected by insufficient policy enforcement in extensions, allowing attackers to bypass security measures.

Understanding CVE-2020-15973

This CVE involves a vulnerability in Google Chrome that enables attackers to circumvent security policies through malicious extensions.

What is CVE-2020-15973?

The vulnerability in Google Chrome before version 86.0.4240.75 allows attackers to bypass same-origin policy by convincing users to install a crafted extension.

The Impact of CVE-2020-15973

Attackers exploiting this vulnerability can execute arbitrary code, access sensitive information, and perform unauthorized actions on affected systems.

Technical Details of CVE-2020-15973

Google Chrome's vulnerability details and affected systems.

Vulnerability Description

Insufficient policy enforcement in Chrome extensions before 86.0.4240.75 permits attackers to bypass security restrictions via malicious extensions.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 86.0.4240.75

Exploitation Mechanism

Attackers can exploit this vulnerability by tricking users into installing a malicious Chrome extension, enabling them to evade security policies.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-15973.

Immediate Steps to Take

Update Google Chrome to version 86.0.4240.75 or later to patch the vulnerability.
Avoid installing extensions from untrusted sources.
Regularly monitor for suspicious extension behavior.

Long-Term Security Practices

Educate users on safe browsing habits and extension installation practices.
Implement network and endpoint security measures to detect and prevent malicious activities.

Patching and Updates

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