CVE-2021-30506 Explained : Impact and Mitigation

A detailed overview of CVE-2021-30506, a vulnerability in Google Chrome on Android that allowed attackers to inject scripts or HTML into privileged pages.

Understanding CVE-2021-30506

This section delves into what CVE-2021-30506 entails, the impact it has, its technical details, and how to mitigate and prevent it.

What is CVE-2021-30506?

The vulnerability in Google Chrome on Android before version 90.0.4430.212 involved incorrect security UI during web app installs, enabling attackers to inject scripts or HTML into privileged pages through a crafted HTML page.

The Impact of CVE-2021-30506

The flaw in Chrome on Android could be exploited by attackers convincing users to install a malicious web application, leading to script or HTML injection into high-privilege pages, potentially compromising user data and security.

Technical Details of CVE-2021-30506

This section covers the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability allowed attackers to manipulate Chrome's security UI during web app installations, enabling script and HTML injections on privileged pages.

Affected Systems and Versions

Google Chrome on Android versions prior to 90.0.4430.212 were impacted by this vulnerability.

Exploitation Mechanism

Attackers could exploit the vulnerability by persuading users to install a web application, thereby injecting malicious scripts or HTML into pages with elevated privileges.

Mitigation and Prevention

In this section, find out the immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Users should update Google Chrome on Android to version 90.0.4430.212 or newer to mitigate the risk of exploitation.

Long-Term Security Practices

Adopting safe browsing habits, being cautious with web application installations, and avoiding suspicious links can help prevent similar security risks.

Patching and Updates

Regularly check for Chrome updates and apply patches promptly to ensure that known vulnerabilities are patched and security is optimized.