CVE-2017-5928 : Security Advisory and Response

Various web browsers lack consideration for measuring memory-reference times using the 'Time to Tick' approach in the W3C High Resolution Time API, leading to an increased vulnerability to AnC attacks.

Understanding CVE-2017-5928

This CVE highlights a flaw in the implementation of the W3C High Resolution Time API in various web browsers, making them susceptible to AnC attacks.

What is CVE-2017-5928?

The vulnerability arises from the failure to account for memory-reference times accurately, allowing remote attackers to exploit the flaw through specially crafted JavaScript code.

The Impact of CVE-2017-5928

The oversight in measuring memory-reference times increases the risk of AnC attacks, compromising the security of affected web browsers.

Technical Details of CVE-2017-5928

This section delves into the specifics of the vulnerability.

Vulnerability Description

The W3C High Resolution Time API in multiple web browsers does not accurately measure memory-reference times, enabling AnC attacks through malicious JavaScript code.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers exploit the vulnerability by leveraging the inaccurate measurement of memory-reference times in the W3C High Resolution Time API.

Mitigation and Prevention

Protective measures to address and prevent the exploitation of CVE-2017-5928.

Immediate Steps to Take

Disable or restrict the execution of JavaScript on untrusted websites.
Implement browser security extensions that can detect and block malicious scripts.

Long-Term Security Practices

Regularly update web browsers to the latest versions to patch known vulnerabilities.
Educate users on safe browsing practices to minimize the risk of executing malicious scripts.

Patching and Updates

Apply security patches provided by browser vendors promptly to mitigate the vulnerability.