CVE-2019-16317 : Vulnerability Insights and Analysis

Pimcore versions earlier than 5.7.1 are vulnerable to an attack where an unauthorized user with restricted privileges can initiate the execution of a .phar file by utilizing a phar:// URL in a filename parameter. This is distinct from previous CVEs.

Understanding CVE-2019-16317

In Pimcore before version 5.7.1, a specific vulnerability allows unauthorized users to execute malicious .phar files through a crafted URL.

What is CVE-2019-16317?

This CVE refers to a security flaw in Pimcore versions prior to 5.7.1 that enables attackers with limited privileges to trigger the execution of a .phar file using a specially crafted phar:// URL.

The Impact of CVE-2019-16317

Unauthorized users with restricted privileges can execute malicious .phar files.
Attackers can exploit this vulnerability to compromise the system's security.

Technical Details of CVE-2019-16317

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

Vulnerability Description

The vulnerability allows unauthorized users to execute .phar files by manipulating a phar:// URL in a filename parameter due to the lack of proper restrictions on PHAR uploads.

Affected Systems and Versions

Pimcore versions earlier than 5.7.1 are affected.

Exploitation Mechanism

Attackers can exploit this vulnerability by utilizing a phar:// URL in a filename parameter to execute malicious .phar files.

Mitigation and Prevention

Protecting systems from CVE-2019-16317 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade Pimcore to version 5.7.1 or later to mitigate the vulnerability.
Implement proper input validation to prevent malicious file executions.

Long-Term Security Practices

Regularly update and patch software to address security vulnerabilities.
Conduct security audits and penetration testing to identify and remediate potential weaknesses.

Patching and Updates

Apply security patches provided by Pimcore promptly to address the vulnerability.