Learn about CVE-2021-21182, an insufficient policy enforcement vulnerability in Google Chrome. Find out the impact, affected versions, and mitigation steps to secure your system.
A remote attacker exploited an insufficient policy enforcement vulnerability in Google Chrome, allowing them to bypass navigation restrictions.
Understanding CVE-2021-21182
This CVE refers to the insufficient policy enforcement issue in Google Chrome versions prior to 89.0.4389.72.
What is CVE-2021-21182?
CVE-2021-21182 highlights a security flaw in Google Chrome that enabled a remote attacker to bypass navigation restrictions through a maliciously crafted HTML page.
The Impact of CVE-2021-21182
The vulnerability could be leveraged by an attacker who compromised the renderer process, leading to potential unauthorized navigation bypasses.
Technical Details of CVE-2021-21182
This section delves into the specifics of the vulnerability.
Vulnerability Description
The issue was associated with insufficient policy enforcement during navigations within the Chrome browser, creating an avenue for bypassing restrictions.
Affected Systems and Versions
Google Chrome versions below 89.0.4389.72 were impacted by this vulnerability.
Exploitation Mechanism
By exploiting this vulnerability, a remote attacker could circumvent navigation policies by using a meticulously crafted HTML page.
Mitigation and Prevention
Here are the necessary steps to address and prevent exploitation of CVE-2021-21182:
Immediate Steps to Take
Users should update Chrome to version 89.0.4389.72 or newer to mitigate the vulnerability. Additionally, exercise caution when interacting with untrusted websites.
Long-Term Security Practices
Maintain regular software updates, utilize security tools, and follow safe browsing habits to reduce the risk of exploitation.
Patching and Updates
Stay informed about security updates released by Google and promptly install patches to protect against known vulnerabilities.