CVE-2021-46361 Explained : Impact and Mitigation

A vulnerability in the Freemark Filter of Magnolia CMS v6.2.11 and below allows attackers to execute arbitrary code.

Understanding CVE-2021-46361

What is CVE-2021-46361?

An issue in the Freemark Filter of Magnolia CMS v6.2.11 and below enables attackers to bypass security restrictions and run arbitrary code using a manipulated FreeMarker payload.

The Impact of CVE-2021-46361

This vulnerability in Magnolia CMS allows threat actors to execute malicious code, potentially leading to unauthorized access or manipulation of data.

Technical Details of CVE-2021-46361

Vulnerability Description

The flaw in the Freemark Filter of Magnolia CMS v6.2.11 and earlier versions permits attackers to bypass security measures by crafting a malicious FreeMarker payload.

Affected Systems and Versions

Product: Magnolia CMS
Versions Affected: v6.2.11 and below

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting a specially-crafted FreeMarker payload into the affected system, thereby executing arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Update Magnolia CMS to version 6.2.12 or above to patch the vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Regularly audit and update all software components to prevent known vulnerabilities.
Implement strict input validation to mitigate injection attacks.

Patching and Updates

Apply security patches provided by Magnolia CMS promptly to address this vulnerability.