CVE-2018-6114 : Exploit Details and Defense Strategies

Google Chrome prior to version 66.0.3359.117 had a vulnerability in the enforcement of content security policy (CSP) for <object> tags, allowing remote attackers to bypass CSP.

Understanding CVE-2018-6114

This CVE involves a flaw in Google Chrome's Blink engine that could be exploited by attackers to bypass content security policy.

What is CVE-2018-6114?

Prior to version 66.0.3359.117 of Google Chrome, a flaw existed in the enforcement of CSP for <object> tags, enabling attackers to bypass CSP using a specially crafted HTML page.

The Impact of CVE-2018-6114

This vulnerability could be exploited by remote attackers to circumvent content security policy, potentially leading to unauthorized access or other malicious activities.

Technical Details of CVE-2018-6114

Google Chrome's vulnerability details and affected systems.

Vulnerability Description

Incorrect enforcement of CSP for <object> tags in Blink in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to bypass content security policy via a crafted HTML page.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 66.0.3359.117

Exploitation Mechanism

Attackers could exploit this vulnerability by using a specially crafted HTML page to bypass the content security policy in Google Chrome.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2018-6114.

Immediate Steps to Take

Update Google Chrome to version 66.0.3359.117 or later to patch the vulnerability.
Be cautious while browsing and avoid clicking on suspicious links or visiting untrusted websites.

Long-Term Security Practices

Regularly update your web browser and other software to the latest versions to ensure security patches are applied.
Implement a robust content security policy to mitigate the risk of similar vulnerabilities.

Patching and Updates

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