CVE-2017-18408 : Security Advisory and Response

Stored XSS vulnerabilities in WHM MySQL Password Change interfaces (SEC-282) were present in cPanel versions prior to 67.9999.103.

Understanding CVE-2017-18408

This CVE involves stored XSS vulnerabilities in cPanel versions before 67.9999.103, specifically in the WHM MySQL Password Change interfaces.

What is CVE-2017-18408?

cPanel before version 67.9999.103 is susceptible to stored XSS attacks in the WHM MySQL Password Change interfaces (SEC-282).

The Impact of CVE-2017-18408

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-2017-18408

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in cPanel versions prior to 67.9999.103 allows for stored XSS attacks in the WHM MySQL Password Change interfaces (SEC-282).

Affected Systems and Versions

Affected System: cPanel
Affected Versions: Versions prior to 67.9999.103

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the WHM MySQL Password Change interfaces, which are then executed when accessed by other users.

Mitigation and Prevention

Protecting systems from CVE-2017-18408 is crucial to maintaining security.

Immediate Steps to Take

Update cPanel to version 67.9999.103 or later to mitigate the vulnerability.
Regularly monitor and audit user inputs and outputs to detect and prevent XSS attacks.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS vulnerabilities.
Educate users on safe browsing practices and the risks of executing untrusted scripts.

Patching and Updates

Stay informed about security updates and patches released by cPanel to address vulnerabilities like CVE-2017-18408.