CVE-2021-21211 Explained : Impact and Mitigation
Learn about CVE-2021-21211, a vulnerability in Google Chrome on iOS allowing remote attackers to leak cross-origin data. Find out the impact, affected versions, and mitigation steps.
Inappropriate implementation in Navigation in Google Chrome on iOS prior to version 90.0.4430.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
Understanding CVE-2021-21211
This section dives into the details of the CVE-2021-21211 vulnerability.
What is CVE-2021-21211?
The CVE-2021-21211 vulnerability involves inappropriate implementation in Navigation in Google Chrome on iOS before version 90.0.4430.72, which could be exploited by a remote attacker to leak cross-origin data through a carefully crafted HTML page.
The Impact of CVE-2021-21211
This vulnerability has the potential to compromise the confidentiality and integrity of data processed by affected versions of Google Chrome on iOS, posing a significant risk to user privacy and security.
Technical Details of CVE-2021-21211
Explore the technical aspects of CVE-2021-21211 to understand its implications and risks.
Vulnerability Description
The vulnerability arises from inadequate Navigation implementation in Google Chrome on iOS before version 90.0.4430.72, enabling an attacker to extract cross-origin data using a malicious HTML page.
Affected Systems and Versions
Google Chrome on iOS versions earlier than 90.0.4430.72 is susceptible to this security flaw, making devices running these versions vulnerable to data leakage.
Exploitation Mechanism
By crafting a specific HTML page, a remote attacker could exploit this vulnerability to extract sensitive cross-origin data from affected Chrome browsers on iOS devices.
Mitigation and Prevention
Take necessary steps to mitigate the risks posed by CVE-2021-21211 and enhance the security of your systems.
Immediate Steps to Take
Users are advised to update Google Chrome on their iOS devices to version 90.0.4430.72 or later to eliminate the vulnerability and protect against potential data leaks.
Long-Term Security Practices
Maintaining regular software updates and security patches is crucial to prevent future vulnerabilities and ensure the overall security of your systems.
Patching and Updates
Stay informed about security advisories from Google and promptly apply patches and updates to address known vulnerabilities and safeguard your digital environment.