CVE-2017-15393 : Security Advisory and Response

CVE-2017-15393 was published on February 7, 2018, with a severity related to Google Chrome prior to version 62.0.3202.62. The vulnerability allowed remote attackers to gain unauthorized access to the remote debugging feature through a crafted HTML page.

Understanding CVE-2017-15393

This CVE entry highlights a case of insufficient policy enforcement in Devtools remote debugging in Google Chrome.

What is CVE-2017-15393?

Prior to version 62.0.3202.62, a lack of proper enforcement in the policy of Devtools remote debugging in Google Chrome enabled remote attackers to exploit a Referer leak, granting them unauthorized access to the remote debugging feature.

The Impact of CVE-2017-15393

The vulnerability posed a significant security risk as it allowed attackers to access remote debugging functionality, potentially leading to unauthorized data access and manipulation.

Technical Details of CVE-2017-15393

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability stemmed from insufficient policy enforcement in Devtools remote debugging, enabling attackers to leverage a specially crafted HTML page to exploit a Referer leak.

Affected Systems and Versions

Product: Google Chrome prior to 62.0.3202.62
Versions: Google Chrome prior to 62.0.3202.62

Exploitation Mechanism

Attackers could exploit the vulnerability by using a specially crafted HTML page to gain unauthorized access to the remote debugging feature in Google Chrome.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2017-15393, the following steps are recommended:

Immediate Steps to Take

Update Google Chrome to version 62.0.3202.62 or later to mitigate the vulnerability.
Avoid visiting untrusted websites or clicking on suspicious links to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update Google Chrome and other software to ensure the latest security patches are applied.
Implement network security measures such as firewalls and intrusion detection systems to enhance overall security posture.

Patching and Updates

Stay informed about security advisories and updates from Google Chrome to promptly address any future vulnerabilities.