CVE-2021-27908 : Security Advisory and Response

In March 2021, the CVE-2021-27908 vulnerability was discovered in Mautic, affecting versions prior to 3.3.2. This CVE poses a risk of exposing secret parameters, such as database credentials, by an authorized admin user. Here's a detailed overview of this security flaw.

Understanding CVE-2021-27908

This section will delve into what CVE-2021-27908 entails, its impact, technical details, and mitigation strategies.

What is CVE-2021-27908?

CVE-2021-27908 affects Mautic versions before 3.3.2, enabling an admin user to expose sensitive data like database credentials through the utilization of Symfony parameter syntax.

The Impact of CVE-2021-27908

The vulnerability's impact is rated as MEDIUM severity with high confidentiality and integrity impacts. Although the availability impact is low, the exploitation requires high privileges and local access.

Technical Details of CVE-2021-27908

This section provides a more in-depth look at the technical aspects of CVE-2021-27908, including vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

Prior to Mautic 3.3.2, admin users could inadvertently expose sensitive information in publicly-facing parts of the application, potentially leading to data breaches.

Affected Systems and Versions

All versions preceding Mautic 3.3.2 are susceptible to this vulnerability, highlighting the importance of updating to the latest secure version.

Exploitation Mechanism

To exploit CVE-2021-27908, an authorized admin user could intentionally or unintentionally reveal confidential data through the misuse of Symfony parameter syntax in Mautic's configuration fields.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the exploitation of CVE-2021-27908, safeguarding systems from potential security breaches.

Immediate Steps to Take

Users should promptly update Mautic to version 3.3.2 or later to patch the vulnerability and prevent unauthorized exposure of sensitive information.

Long-Term Security Practices

Implementing secure coding practices, regular security audits, and maintaining up-to-date software versions are essential for enhancing overall cybersecurity posture.

Patching and Updates

Regularly monitor security advisories from Mautic and promptly apply patches and updates to address newly identified vulnerabilities and enhance system security.