CVE-2018-20925 : What You Need to Know

Local privilege escalation can be potentially achieved in versions of cPanel prior to 70.0.23 through the use of the WHM Legacy Language File Upload interface (SEC-379).

Understanding CVE-2018-20925

cPanel before 70.0.23 allows local privilege escalation via the WHM Legacy Language File Upload interface (SEC-379).

What is CVE-2018-20925?

CVE-2018-20925 is a vulnerability in cPanel versions prior to 70.0.23 that enables local privilege escalation through the WHM Legacy Language File Upload interface (SEC-379).

The Impact of CVE-2018-20925

This vulnerability allows attackers to escalate their privileges locally, potentially gaining unauthorized access to sensitive information or performing malicious actions on the affected system.

Technical Details of CVE-2018-20925

Vulnerability Description

Type: Local privilege escalation
Vulnerable Component: WHM Legacy Language File Upload interface

Affected Systems and Versions

Affected Systems: cPanel versions before 70.0.23
Affected Component: WHM Legacy Language File Upload interface

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to upload files through the WHM Legacy Language File Upload interface, leading to unauthorized privilege escalation.

Mitigation and Prevention

Immediate Steps to Take

Upgrade cPanel to version 70.0.23 or later to mitigate the vulnerability.
Monitor system logs for any suspicious activities related to file uploads.

Long-Term Security Practices

Regularly update and patch cPanel to ensure the latest security fixes are in place.
Implement least privilege access controls to limit the impact of potential privilege escalation attacks.

Patching and Updates

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