CVE-2018-20885 : What You Need to Know

A vulnerability in cPanel versions prior to 74.0.0 allows for the injection of Apache HTTP Server configuration due to the interpolation of the DocumentRoot variable (SEC-416).

Understanding CVE-2018-20885

This CVE identifies a security issue in cPanel that enables Apache HTTP Server configuration injection.

What is CVE-2018-20885?

The vulnerability in cPanel versions before 74.0.0 permits the injection of Apache HTTP Server configuration by exploiting the DocumentRoot variable interpolation (SEC-416).

The Impact of CVE-2018-20885

The vulnerability could potentially allow an attacker to manipulate Apache HTTP Server configuration settings, leading to unauthorized access or other malicious activities.

Technical Details of CVE-2018-20885

This section provides technical insights into the CVE.

Vulnerability Description

The issue arises from the insecure handling of the DocumentRoot variable in cPanel versions prior to 74.0.0, enabling the injection of Apache HTTP Server configuration.

Affected Systems and Versions

Affected: cPanel versions before 74.0.0
Not affected: Versions 74.0.0 and above

Exploitation Mechanism

The vulnerability is exploited by manipulating the DocumentRoot variable, allowing an attacker to inject malicious Apache HTTP Server configuration.

Mitigation and Prevention

Protecting systems from CVE-2018-20885 is crucial for maintaining security.

Immediate Steps to Take

Upgrade cPanel to version 74.0.0 or later to mitigate the vulnerability.
Monitor Apache HTTP Server configuration for any unauthorized changes.

Long-Term Security Practices

Regularly update cPanel and associated software to patch security flaws.
Implement access controls and monitoring to detect and prevent unauthorized configuration changes.

Patching and Updates

Apply patches and updates provided by cPanel to address security vulnerabilities.