CVE-2021-29139 : Exploit Details and Defense Strategies

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

Understanding CVE-2021-29139

This CVE describes a remote cross-site scripting vulnerability in Aruba ClearPass Policy Manager.

What is CVE-2021-29139?

CVE-2021-29139 is a security vulnerability in Aruba ClearPass Policy Manager that allows remote attackers to execute malicious scripts in a user's browser.

The Impact of CVE-2021-29139

Exploitation of this vulnerability could lead to unauthorized access to sensitive data, cookie theft, or unauthorized actions on behalf of users.

Technical Details of CVE-2021-29139

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in Aruba ClearPass Policy Manager versions prior to 6.9.5, 6.8.9, and 6.7.14-HF1 allows for remote cross-site scripting attacks.

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 injecting malicious scripts into web applications and tricking users into executing them.

Mitigation and Prevention

Protect your systems from CVE-2021-29139 with the following measures.

Immediate Steps to Take

Apply the patches provided by Aruba to fix the vulnerability.
Regularly monitor and restrict network traffic to detect any suspicious activities.

Long-Term Security Practices

Educate users about the risks of opening untrusted links or downloading suspicious files.
Implement content security policies and input validation on web applications.

Patching and Updates

Regularly update Aruba ClearPass Policy Manager to the latest version that includes security patches.