CVE-2019-13612 : Vulnerability Insights and Analysis

MDaemon Email Server versions 19 through 20.0.1 have a vulnerability where SpamAssassin checks are not performed on email messages larger than 2 MB, potentially impacting the ability to manage the risk posed by malicious emails.

Understanding CVE-2019-13612

This CVE affects MDaemon Email Server versions 19 through 20.0.1, impacting the SpamAssassin checks on email messages.

What is CVE-2019-13612?

By default, MDaemon Email Server versions 19 through 20.0.1 do not conduct SpamAssassin checks on email messages exceeding 2 MB in size, limiting checks to 10 MB even with special configuration.

The Impact of CVE-2019-13612

The vulnerability could hinder effective risk management for malicious emails, especially if a server is configured with ample resources to scan large messages.

Technical Details of CVE-2019-13612

This section provides technical insights into the vulnerability.

Vulnerability Description

MDaemon Email Server versions 19 through 20.0.1 skip SpamAssassin checks by default for email messages larger than 2 MB, with checks limited to 10 MB even with special configuration.

Affected Systems and Versions

Product: MDaemon Email Server
Versions: 19 through 20.0.1

Exploitation Mechanism

The vulnerability allows malicious emails larger than 2 MB to bypass SpamAssassin checks, potentially exposing systems to email-based threats.

Mitigation and Prevention

Protective measures to address CVE-2019-13612.

Immediate Steps to Take

Update MDaemon Email Server to a patched version that addresses the vulnerability.
Implement additional email security measures to compensate for the lack of SpamAssassin checks.

Long-Term Security Practices

Regularly monitor and audit email security configurations.
Educate users on identifying and handling suspicious emails to mitigate risks.

Patching and Updates

Apply patches or updates provided by the vendor to fix the vulnerability and enhance email security.