CVE-2023-29489 : Exploit Details and Defense Strategies
Learn about CVE-2023-29489, a security flaw in cPanel versions before 11.109.9999.116 allowing cross-site scripting attacks. Find out the impact, technical details, and mitigation steps.
A security vulnerability has been discovered in cPanel, potentially leading to cross-site scripting (XSS) attacks via an invalid webcall ID. Learn more about the impact, technical details, and mitigation steps related to CVE-2023-29489.
Understanding CVE-2023-29489
This section delves into the specifics of the security issue identified in cPanel.
What is CVE-2023-29489?
The vulnerability in cPanel before version 11.109.9999.116 allows for XSS attacks through an improper handling of webcall IDs, identified as SEC-669. The affected versions include 11.109.9999.116, 11.108.0.13, 11.106.0.18, and 11.102.0.31.
The Impact of CVE-2023-29489
The vulnerability poses a moderate risk with a CVSS base score of 5.3. By exploiting this issue, an attacker could execute malicious scripts on the user's browser, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2023-29489
Explore the technical aspects of the CVE-2023-29489 vulnerability.
Vulnerability Description
The security flaw in cPanel arises from inadequate input validation, allowing an attacker to inject and execute scripts on the error page of cpsrvd service.
Affected Systems and Versions
The XSS vulnerability impacts cPanel versions before 11.109.9999.116, 11.108.0.13, 11.106.0.18, and 11.102.0.31.
Exploitation Mechanism
Attackers can trigger the XSS vulnerability by manipulating the webcall ID parameter, inserting malicious scripts that get executed when the error page is rendered.
Mitigation and Prevention
Discover the steps to mitigate the risk associated with CVE-2023-29489.
Immediate Steps to Take
Users are advised to update their cPanel installations to the fixed versions, specifically 11.109.9999.116 or newer, to prevent exploitation of the XSS vulnerability.
Long-Term Security Practices
Implement proper input validation mechanisms and regularly monitor for security updates to safeguard against similar XSS exploits in the future.
Patching and Updates
Stay proactive by applying security patches promptly and ensuring that your cPanel software is up to date with the latest security fixes.