CVE-2023-46116 Explained : Impact and Mitigation

This CVE-2023-46116 article provides insights into a vulnerability allowing Remote Code Execution via an insufficiently sanitized call to shell.openExternal in Tutanota email provider.

Understanding CVE-2023-46116

This section delves into the details of CVE-2023-46116.

What is CVE-2023-46116?

Tutanota, an encrypted email provider, is susceptible to a vulnerability that enables attackers to execute arbitrary code on a victim's computer. The issue lies in Tutanota's failure to block harmful URL schemes adequately.

The Impact of CVE-2023-46116

The vulnerability poses a significant threat as it allows threat actors to exploit the email client to execute malicious code, potentially compromising user data and system integrity.

Technical Details of CVE-2023-46116

Explore the technical aspects of CVE-2023-46116 in this section.

Vulnerability Description

Prior to version 3.118.12, Tutanota fails to block certain URL schemes, including

file:

, enabling attackers to achieve code execution on compromised systems.

Affected Systems and Versions

Tutanota versions prior to 3.118.12 are affected by this vulnerability, exposing users to the risk of remote code execution.

Exploitation Mechanism

By leveraging the inadequately sanitized call to shell.openExternal, threat actors can launch malicious actions, potentially compromising a user's device.

Mitigation and Prevention

Discover the recommended steps to mitigate the risks associated with CVE-2023-46116.

Immediate Steps to Take

Users should update their Tutanota email client to version 3.118.12 or newer to prevent exploitation of this vulnerability.

Long-Term Security Practices

Promote secure browsing habits and avoid clicking on suspicious links to reduce the likelihood of falling victim to similar attacks.

Patching and Updates

Regularly check for software updates and apply patches promptly to address security vulnerabilities and enhance system security.