CVE-2018-10799 : Exploit Details and Defense Strategies

Brave, an internet browser, encountered a hanging issue before version 0.14.0, particularly on Linux systems due to mishandling of extended URLs.

Understanding CVE-2018-10799

What is CVE-2018-10799?

A hang issue was discovered in Brave before version 0.14.0, primarily affecting Linux systems. The vulnerability stemmed from mishandling a lengthy URL created by concatenating window.location+='?\u202a\uFEFF\u202b' within a SCRIPT component.

The Impact of CVE-2018-10799

The vulnerability could lead to the browser hanging, impacting user experience and potentially allowing malicious actors to exploit the weakness.

Technical Details of CVE-2018-10799

Vulnerability Description

The vulnerability in Brave browser before version 0.14.0 was caused by improper handling of extended URLs.

Affected Systems and Versions

Brave browser versions before 0.14.0, especially on Linux systems

Exploitation Mechanism

Exploiting the vulnerability required the concatenation of window.location+='?\u202a\uFEFF\u202b' within a SCRIPT component.

Mitigation and Prevention

Immediate Steps to Take

Update Brave browser to version 0.14.0 or newer to mitigate the vulnerability
Avoid clicking on suspicious links or visiting untrusted websites

Long-Term Security Practices

Regularly update browsers and software to the latest versions
Implement security best practices to prevent and detect potential vulnerabilities

Patching and Updates

Stay informed about security updates for Brave browser and apply patches promptly