CVE-2017-18421 Explained : Impact and Mitigation

This CVE involves a vulnerability in cPanel versions prior to 66.0.2 that allows demo accounts to create databases and users.

Understanding CVE-2017-18421

This vulnerability, identified as SEC-271, poses a security risk for systems using affected versions of cPanel.

What is CVE-2017-18421?

cPanel versions before 66.0.2 enable demo accounts to perform unauthorized actions like creating databases and users, potentially leading to security breaches.

The Impact of CVE-2017-18421

The vulnerability allows unauthorized users to manipulate databases and user accounts, compromising the integrity and confidentiality of data stored on the system.

Technical Details of CVE-2017-18421

Affected systems and versions, along with the exploitation mechanism, are crucial to understanding this CVE.

Vulnerability Description

Demo accounts on cPanel versions prior to 66.0.2 can create databases and users, breaching security protocols.

Affected Systems and Versions

Product: cPanel
Vendor: cPanel
Versions Affected: Prior to 66.0.2

Exploitation Mechanism

Unauthorized users with demo accounts exploit the vulnerability to create databases and users, bypassing security restrictions.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are essential to mitigate the risks associated with CVE-2017-18421.

Immediate Steps to Take

Update cPanel to version 66.0.2 or later to patch the vulnerability.
Monitor database and user creation activities for any unauthorized actions.

Long-Term Security Practices

Regularly review and update access controls and permissions within cPanel.
Educate users on secure practices to prevent unauthorized database and user creation.
Conduct periodic security audits to identify and address any potential vulnerabilities.
Stay informed about security updates and patches for cPanel.
Consider implementing additional security measures to enhance system protection.

Patching and Updates

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