CVE-2017-18423 : Security Advisory and Response

Domain log files in cPanel versions prior to 66.0.2 become accessible for reading once the log processing is complete (SEC-273).

Understanding CVE-2017-18423

In cPanel before version 66.0.2, a vulnerability (SEC-273) allows domain log files to become readable after log processing.

What is CVE-2017-18423?

This CVE refers to a security issue in cPanel versions before 66.0.2 that enables unauthorized access to domain log files after log processing.

The Impact of CVE-2017-18423

The vulnerability could lead to unauthorized users gaining access to sensitive information contained in domain log files, compromising the confidentiality of data.

Technical Details of CVE-2017-18423

The technical aspects of the vulnerability are as follows:

Vulnerability Description

Domain log files in cPanel versions prior to 66.0.2 become accessible for reading once the log processing is complete.

Affected Systems and Versions

Affected systems: cPanel versions before 66.0.2
Affected versions: Not specified

Exploitation Mechanism

Unauthorized users can exploit this vulnerability to access domain log files after log processing, potentially exposing sensitive information.

Mitigation and Prevention

To address CVE-2017-18423, consider the following steps:

Immediate Steps to Take

Upgrade cPanel to version 66.0.2 or newer to mitigate the vulnerability.
Regularly monitor log files for any unauthorized access.

Long-Term Security Practices

Implement access controls to restrict unauthorized access to log files.
Conduct regular security audits to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by cPanel to address known vulnerabilities.