CVE-2019-20453 : Security Advisory and Response

Pydio Core versions prior to 8.2.4 and Pydio Enterprise versions prior to 8.2.4 contain a PHP object injection vulnerability that can lead to remote code execution.

Understanding CVE-2019-20453

This CVE identifies a security flaw in Pydio Core and Pydio Enterprise versions before 8.2.4 that allows authenticated users to inject objects and potentially execute remote code.

What is CVE-2019-20453?

CVE-2019-20453 is a PHP object injection vulnerability found in the page plugins/uploader.http/HttpDownload.php of Pydio Core and Pydio Enterprise versions prior to 8.2.4.

The Impact of CVE-2019-20453

The exploitation of this vulnerability enables authenticated users with basic privileges to inject objects, potentially leading to the execution of remote code.

Technical Details of CVE-2019-20453

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability involves a PHP object injection issue within the page plugins/uploader.http/HttpDownload.php of Pydio Core and Pydio Enterprise versions before 8.2.4.

Affected Systems and Versions

Pydio Core versions prior to 8.2.4
Pydio Enterprise versions prior to 8.2.4

Exploitation Mechanism

An authenticated user with basic privileges can exploit the vulnerability to inject objects and potentially execute remote code.

Mitigation and Prevention

Protecting systems from CVE-2019-20453 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Pydio Core and Pydio Enterprise to version 8.2.4 or later.
Monitor for any unauthorized access or suspicious activities.

Long-Term Security Practices

Regularly update software and apply security patches.
Implement strong authentication mechanisms and access controls.

Patching and Updates

Ensure that all systems running Pydio Core and Pydio Enterprise are patched with the latest security updates to mitigate the risk of PHP object injection vulnerabilities.