CVE-2019-5859 : Exploit Details and Defense Strategies

A flaw in the way URI schemes are filtered in versions of Google Chrome prior to 76.0.3809.87 on Windows enabled a remote attacker to bypass navigation restrictions by utilizing a specifically created HTML page.

Understanding CVE-2019-5859

Insufficient filtering in URI schemes in Google Chrome on Windows prior to 76.0.3809.87 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.

What is CVE-2019-5859?

Vulnerability in URI scheme filtering in Google Chrome on Windows
Enables a remote attacker to bypass navigation restrictions

The Impact of CVE-2019-5859

Remote attackers can exploit the vulnerability to bypass security measures
Potential for unauthorized access to sensitive information

Technical Details of CVE-2019-5859

Affects Google Chrome versions prior to 76.0.3809.87 on Windows

Vulnerability Description

Type: Policy bypass
Allows attackers to bypass navigation restrictions

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 76.0.3809.87

Exploitation Mechanism

Attackers can create a specially crafted HTML page to exploit the vulnerability

Mitigation and Prevention

Immediate Steps to Take:

Update Google Chrome to version 76.0.3809.87 or later
Avoid clicking on suspicious links or visiting untrusted websites

Long-Term Security Practices:

Regularly update software and applications to the latest versions
Implement strong security measures such as firewalls and antivirus programs
Educate users on safe browsing practices
Monitor for unusual network activity and behavior
Stay informed about security vulnerabilities and patches