CVE-2017-18433 : Security Advisory and Response

cPanel versions prior to 64.0.21 have a vulnerability (SEC-236) that enables code execution through the store_filter API call in webmail and demo accounts.

Understanding CVE-2017-18433

This CVE involves a security vulnerability in cPanel versions before 64.0.21 that allows for code execution via specific API calls.

What is CVE-2017-18433?

cPanel before version 64.0.21 is susceptible to a security flaw (SEC-236) that permits code execution through the store_filter API call in webmail and demo accounts.

The Impact of CVE-2017-18433

The vulnerability could potentially lead to unauthorized code execution, posing a significant risk to the confidentiality and integrity of data stored within cPanel accounts.

Technical Details of CVE-2017-18433

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in cPanel versions prior to 64.0.21 allows malicious actors to execute arbitrary code through the store_filter API call in webmail and demo accounts.

Affected Systems and Versions

Affected System: cPanel versions before 64.0.21
Affected Component: store_filter API call in webmail and demo accounts

Exploitation Mechanism

The vulnerability can be exploited by sending crafted requests to the store_filter API call, enabling attackers to execute malicious code within the cPanel environment.

Mitigation and Prevention

Protecting systems from CVE-2017-18433 is crucial to maintaining security.

Immediate Steps to Take

Update cPanel to version 64.0.21 or later to mitigate the vulnerability.
Monitor for any unusual activities in webmail and demo accounts.

Long-Term Security Practices

Regularly update cPanel and other software to patch known vulnerabilities.
Implement strong access controls and monitoring mechanisms to detect and prevent unauthorized code execution.

Patching and Updates

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