CVE-2018-20947 : Vulnerability Insights and Analysis

A vulnerability in cPanel versions prior to 68.0.27 allows unauthorized file-write actions through the telnetcrt script.

Understanding CVE-2018-20947

This CVE identifies a security issue in cPanel that could be exploited to perform specific file-write operations.

What is CVE-2018-20947?

cPanel versions before 68.0.27 are susceptible to a vulnerability (SEC-356) that enables unauthorized file-write actions via the telnetcrt script.

The Impact of CVE-2018-20947

The vulnerability could be exploited by malicious actors to write files on the system, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2018-20947

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in cPanel allows certain file-write operations through the telnetcrt script (SEC-356).

Affected Systems and Versions

Product: cPanel
Vendor: Not applicable
Versions affected: All versions prior to 68.0.27

Exploitation Mechanism

The vulnerability can be exploited by executing specific actions through the telnetcrt script, enabling unauthorized file writing.

Mitigation and Prevention

Protecting systems from CVE-2018-20947 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update cPanel to version 68.0.27 or newer to mitigate the vulnerability.
Monitor system logs for any suspicious file-write activities.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement access controls and restrictions to prevent unauthorized file modifications.

Patching and Updates

Ensure timely patching and updates for cPanel to address security vulnerabilities and enhance system protection.