CVE-2018-20071 Explained : Impact and Mitigation

A vulnerability in Google Chrome prior to version 70.0.3538.67 allowed a remote attacker to exploit insufficient origin checks during JIT payment app installation.

Understanding CVE-2018-20071

Prior to version 70.0.3538.67 of Payments in Google Chrome, a loophole existed that enabled a remote attacker to install a service worker on a domain hosting malicious files.

What is CVE-2018-20071?

This CVE refers to the insufficient origin checks during JIT payment app installation in Google Chrome, allowing a remote attacker to install a service worker on a domain hosting malicious files.

The Impact of CVE-2018-20071

The vulnerability could be exploited by a remote attacker to compromise the security of a user's system by installing a service worker on a domain hosting malicious files.

Technical Details of CVE-2018-20071

Google Chrome's vulnerability details and affected systems.

Vulnerability Description

The vulnerability allowed a remote attacker to install a service worker on a domain hosting malicious files by exploiting insufficient origin checks during JIT payment app installation.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: Prior to 70.0.3538.67

Exploitation Mechanism

The attacker could exploit the vulnerability by using a specially crafted HTML page to install a service worker on a domain hosting malicious files.

Mitigation and Prevention

Steps to mitigate and prevent the exploitation of CVE-2018-20071.

Immediate Steps to Take

Update Google Chrome to version 70.0.3538.67 or later to patch the vulnerability.
Avoid visiting untrusted websites or clicking on suspicious links.

Long-Term Security Practices

Regularly update software and applications to the latest versions.
Implement strong security measures such as firewalls and antivirus software.
Educate users on safe browsing practices to prevent similar attacks.

Patching and Updates

Google has released updates to address this vulnerability. Ensure that all systems are updated to the latest version of Google Chrome.