CVE-2020-29137 : Vulnerability Insights and Analysis

This CVE-2020-29137 article provides insights into a security vulnerability in cPanel before version 90.0.17 that allows self-XSS via the WHM Transfer Tool interface.

Understanding CVE-2020-29137

This section delves into the details of the CVE-2020-29137 vulnerability.

What is CVE-2020-29137?

cPanel versions prior to 90.0.17 are susceptible to a self-XSS vulnerability through the WHM Transfer Tool interface (SEC-577).

The Impact of CVE-2020-29137

The vulnerability could allow an attacker to execute malicious scripts in the context of the user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-29137

Exploring the technical aspects of CVE-2020-29137.

Vulnerability Description

The issue in cPanel before 90.0.17 permits self-XSS attacks via the WHM Transfer Tool interface (SEC-577).

Affected Systems and Versions

Affected Product: cPanel
Affected Version: < 90.0.17

Exploitation Mechanism

Attackers can exploit this vulnerability by tricking a user into executing malicious scripts within their own session, leading to potential security breaches.

Mitigation and Prevention

Guidelines to mitigate the CVE-2020-29137 vulnerability.

Immediate Steps to Take

Upgrade cPanel to version 90.0.17 or newer to address the self-XSS vulnerability.
Educate users to avoid clicking on suspicious links or executing untrusted scripts.

Long-Term Security Practices

Regularly update cPanel and other software to patch known vulnerabilities.
Implement security awareness training to educate users on safe browsing practices.

Patching and Updates

Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.