CVE-2018-20924 : Exploit Details and Defense Strategies

Arbitrary file-read and file-unlink operations are permitted through WHM style uploads in cPanel versions prior to 70.0.23 (SEC-378).

Understanding CVE-2018-20924

This CVE identifies a vulnerability in cPanel versions before 70.0.23 that allows arbitrary file-read and file-unlink operations through WHM style uploads.

What is CVE-2018-20924?

cPanel before version 70.0.23 is susceptible to arbitrary file-read and file-unlink operations via WHM style uploads, as identified by SEC-378.

The Impact of CVE-2018-20924

This vulnerability could potentially allow unauthorized users to read or delete files on the system, leading to data breaches or system compromise.

Technical Details of CVE-2018-20924

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in cPanel versions before 70.0.23 allows attackers to perform arbitrary file-read and file-unlink operations through WHM style uploads.

Affected Systems and Versions

Affected Product: cPanel
Affected Versions: Prior to 70.0.23

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging WHM style uploads to read or delete files on the system.

Mitigation and Prevention

Protecting systems from CVE-2018-20924 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update cPanel to version 70.0.23 or later to mitigate the vulnerability.
Monitor file operations and access logs for any suspicious activities.

Long-Term Security Practices

Implement access controls and least privilege principles to restrict file operations.
Regularly audit and review file permissions and user access rights.

Patching and Updates

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