CVE-2021-38264 : Exploit Details and Defense Strategies

A Cross-site scripting (XSS) vulnerability has been identified in the Frontend Taglib module in Liferay Portal versions 7.4.0 and 7.4.1. This vulnerability allows remote attackers to inject arbitrary web script or HTML into the management toolbar search via the

keywords

parameter. The issue is a result of an incomplete fix from a previous CVE-2021-35463.

Understanding CVE-2021-38264

This section provides insights into the nature and impact of the CVE-2021-38264 vulnerability.

What is CVE-2021-38264?

CVE-2021-38264 is a Cross-site scripting (XSS) vulnerability found in the Frontend Taglib module of Liferay Portal versions 7.4.0 and 7.4.1. It allows malicious actors to inject arbitrary web script or HTML into the management toolbar search through the

keywords

parameter.

The Impact of CVE-2021-38264

The impact of this vulnerability is significant as it enables remote attackers to execute scripts in the context of an unsuspecting user's browser, potentially leading to various malicious activities.

Technical Details of CVE-2021-38264

Let's dive deeper into the technical aspects of the CVE-2021-38264 vulnerability.

Vulnerability Description

The vulnerability arises due to insufficient input validation in the handling of the

keywords

parameter within the Frontend Taglib module of Liferay Portal versions 7.4.0 and 7.4.1.

Affected Systems and Versions

Liferay Portal versions 7.4.0 and 7.4.1 are affected by this XSS vulnerability. Users of these versions are urged to take immediate action.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by injecting malicious scripts or HTML code into the search functionality of the management toolbar, potentially compromising the security and integrity of the system.

Mitigation and Prevention

Implementing effective security measures is crucial to mitigate the risks posed by CVE-2021-38264.

Immediate Steps to Take

Users are advised to apply the necessary patches or updates provided by Liferay to address the CVE-2021-38264 vulnerability promptly.

Long-Term Security Practices

Regular security audits, input validation mechanisms, and security awareness training can help prevent XSS vulnerabilities like CVE-2021-38264 in the long run.

Patching and Updates

Stay informed about security advisories from Liferay and promptly apply patches and updates to safeguard your systems against known vulnerabilities.