CVE-2018-20879 : Exploit Details and Defense Strategies

The cPanel version prior to 74.0.8 has a security vulnerability (SEC-444) that enables demo accounts to run unrestricted code through the Fileman::viewfile API.

Understanding CVE-2018-20879

This CVE identifies a security vulnerability in cPanel versions before 74.0.8 that allows demo accounts to execute arbitrary code via the Fileman::viewfile API (SEC-444).

What is CVE-2018-20879?

cPanel versions prior to 74.0.8 are susceptible to a security flaw that permits demo accounts to run arbitrary code through the Fileman::viewfile API.

The Impact of CVE-2018-20879

The vulnerability allows unauthorized execution of code by demo accounts, potentially leading to unauthorized access and malicious activities.

Technical Details of CVE-2018-20879

Vulnerability Description

The issue in cPanel versions before 74.0.8 enables demo accounts to execute unrestricted code through the Fileman::viewfile API (SEC-444).

Affected Systems and Versions

Affected Product: cPanel
Vulnerable Versions: Prior to 74.0.8

Exploitation Mechanism

The vulnerability can be exploited by demo accounts to execute arbitrary code, posing a significant security risk.

Mitigation and Prevention

Immediate Steps to Take

Upgrade cPanel to version 74.0.8 or newer to mitigate the vulnerability.
Monitor and restrict demo accounts' capabilities to minimize the risk of unauthorized code execution.

Long-Term Security Practices

Regularly update cPanel and other software to patch security vulnerabilities promptly.
Implement strong access controls and permissions to limit the impact of potential breaches.
Conduct security audits and penetration testing to identify and address any security weaknesses.
Educate users on safe computing practices to prevent exploitation of vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates for cPanel to address known vulnerabilities and enhance system security.