CVE-2019-5873 : Security Advisory and Response

Google Chrome on iOS before version 77.0.3865.75 had a vulnerability that allowed a remote attacker to deceive users by spoofing the Omnibox (URL bar) using a crafted HTML page.

Understanding CVE-2019-5873

This CVE describes an incorrect security UI issue in Google Chrome on iOS.

What is CVE-2019-5873?

Before version 77.0.3865.75, Google Chrome on iOS had inadequate policy validation in its navigation system. This vulnerability enabled a remote attacker to deceive the user by generating a fake appearance of the Omnibox (URL bar) using a skillfully constructed HTML page.

The Impact of CVE-2019-5873

The vulnerability allowed a remote attacker to spoof the contents of the Omnibox, potentially leading to phishing attacks or other malicious activities.

Technical Details of CVE-2019-5873

Google Chrome on iOS was affected by this vulnerability.

Vulnerability Description

Insufficient policy validation in navigation in Google Chrome on iOS prior to 77.0.3865.75 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions affected: < 77.0.3865.75

Exploitation Mechanism

The vulnerability could be exploited by a remote attacker to deceive users by creating a fake appearance of the Omnibox using a carefully crafted HTML page.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent such vulnerabilities.

Immediate Steps to Take

Update Google Chrome on iOS to version 77.0.3865.75 or newer.
Be cautious while browsing and avoid clicking on suspicious links.

Long-Term Security Practices

Regularly update all software and applications to the latest versions.
Educate users about phishing techniques and safe browsing practices.

Patching and Updates

Ensure that all security patches and updates for Google Chrome on iOS are promptly applied to mitigate the risk of exploitation.