CVE-2017-18384 : Exploit Details and Defense Strategies

Jailed accounts in cPanel version 68.0.15 and earlier have the capability to restore files located outside of the jail, posing a security risk (SEC-310).

Understanding CVE-2017-18384

This CVE involves a vulnerability in cPanel versions prior to 68.0.15 that allows jailed accounts to restore files outside of their designated jail, potentially leading to security issues.

What is CVE-2017-18384?

cPanel versions before 68.0.15 permit jailed accounts to restore files beyond their restricted jail environment, creating a security concern identified as SEC-310.

The Impact of CVE-2017-18384

The vulnerability could allow malicious users to access and manipulate files outside their restricted area, compromising the system's integrity and confidentiality.

Technical Details of CVE-2017-18384

Vulnerability Description

Jailed accounts in cPanel versions earlier than 68.0.15 can restore files located outside their confinement, introducing a security risk.

Affected Systems and Versions

Product: cPanel
Versions affected: Up to 68.0.15

Exploitation Mechanism

The vulnerability enables jailed accounts to restore files from locations outside their restricted environment, potentially leading to unauthorized access and data manipulation.

Mitigation and Prevention

Immediate Steps to Take

Upgrade cPanel to version 68.0.15 or later to mitigate the vulnerability.
Regularly monitor and review file restoration activities within jailed accounts.

Long-Term Security Practices

Implement strict file access controls and permissions for jailed accounts.
Conduct regular security audits and assessments to identify and address any potential vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates provided by cPanel to address known vulnerabilities.