CVE-2021-29142 : Vulnerability Insights and Analysis

A remote cross-site scripting (XSS) vulnerability was discovered in Aruba ClearPass Policy Manager version(s) prior to 6.9.5, 6.8.9, 6.7.14-HF1. Aruba has released patches to address this security issue.

Understanding CVE-2021-29142

This CVE involves a remote cross-site scripting vulnerability in Aruba ClearPass Policy Manager versions prior to 6.9.5, 6.8.9, 6.7.14-HF1, allowing attackers to execute malicious scripts on users' browsers.

What is CVE-2021-29142?

CVE-2021-29142 is a remote cross-site scripting (XSS) vulnerability found in Aruba ClearPass Policy Manager before versions 6.9.5, 6.8.9, and 6.7.14-HF1.

The Impact of CVE-2021-29142

This vulnerability could be exploited by attackers to inject malicious scripts into web pages viewed by users, leading to various attacks such as data theft, session hijacking, or defacement of websites.

Technical Details of CVE-2021-29142

The following technical details explain the vulnerability in depth:

Vulnerability Description

The vulnerability allows remote attackers to inject and execute arbitrary scripts in the context of an authenticated user on the affected system.

Affected Systems and Versions

Aruba ClearPass Policy Manager versions prior to 6.9.5, 6.8.9, 6.7.14-HF1 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by enticing a user to click on a specially crafted link that executes malicious scripts in the context of the user's session.

Mitigation and Prevention

To secure systems from CVE-2021-29142, consider the following mitigation strategies:

Immediate Steps to Take

Apply the security patches provided by Aruba to upgrade to a fixed version of ClearPass Policy Manager.
Monitor network traffic and web server logs for any suspicious activities.

Long-Term Security Practices

Regularly update software and firmware to ensure the latest security patches are applied.
Educate users about safe browsing practices to prevent XSS attacks.

Patching and Updates

Stay informed about security updates and patches released by Aruba for ClearPass Policy Manager to address known vulnerabilities.