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CVE-2021-21177 : Vulnerability Insights and Analysis

Get insights into CVE-2021-21177, a security flaw in Google Chrome pre-89.0.4389.72 allowing remote attackers to access sensitive data via crafted HTML pages. Learn about impacts and mitigation.

A detailed overview of CVE-2021-21177, a vulnerability in Google Chrome prior to version 89.0.4389.72 that allowed remote attackers to access sensitive information.

Understanding CVE-2021-21177

This section provides insights into the nature of the vulnerability and its impact.

What is CVE-2021-21177?

The CVE-2021-21177 vulnerability involves insufficient policy enforcement in the Autofill feature of Google Chrome before version 89.0.4389.72. This loophole enabled a remote attacker to extract potentially sensitive data from process memory by utilizing a maliciously crafted HTML page.

The Impact of CVE-2021-21177

The impact of this vulnerability was significant as it allowed unauthorized parties to retrieve sensitive information, posing a threat to user privacy and security.

Technical Details of CVE-2021-21177

Explore the technical aspects of CVE-2021-21177 to understand how it affected systems and what exploitation mechanisms were employed.

Vulnerability Description

The vulnerability stemmed from inadequate policy enforcement in the Autofill component of Google Chrome, creating a gateway for attackers to access privileged information stored in process memory.

Affected Systems and Versions

Google Chrome versions prior to 89.0.4389.72 were vulnerable to this issue, leaving users of these versions at risk of data exposure and exploitation by malicious actors.

Exploitation Mechanism

By leveraging a specially crafted HTML page, remote attackers could trigger the vulnerability and retrieve sensitive data from the system's memory, exploiting the inadequate policy enforcement within the Autofill functionality.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-21177 and safeguard your systems from similar vulnerabilities.

Immediate Steps to Take

Users are advised to update their Google Chrome browser to version 89.0.4389.72 or above to patch the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Incorporating robust security practices such as regular software updates, security awareness training, and employing secure browsing habits can enhance overall defense against cyber threats.

Patching and Updates

Regularly checking for and applying software patches and updates, especially for critical components like web browsers, is crucial to maintaining a secure computing environment.

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