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CVE-2023-46116

9.3 · CRITICAL

Tutanota (Tuta Mail) is an encrypted email provider.

Published Dec 15, 2023CWE-20EPSS 1.26%

Overview

CVE-2023-46116 is a critical-severity vulnerability. It was published on December 15, 2023 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Tutanota (Tuta Mail) is an encrypted email provider. Tutanota allows users to open links in emails in external applications. Prior to version 3.118.12, it correctly blocks the `file:` URL scheme, which can be used by malicious actors to gain code execution on a victims computer, however fails to check other harmful schemes such as `ftp:`, `smb:`, etc. which can also be used. Successful exploitation of this vulnerability will enable an attacker to gain code execution on a victim's computer. Version 3.118.2 contains a patch for this issue.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L417GitHubgithub.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L423GitHubgithub.com/tutao/tutanota/commit/88ecad17d00d05a722399aed35f0d280899d55a2GitHubgithub.com/tutao/tutanota/security/advisories/GHSA-mxgj-pq62-f644Refuser-images.githubusercontent.com/46137338/270564886-7a0389d3-f9ef-44e1-9f5e-57ccc72dcaa8.mp4GitHubgithub.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L417GitHubgithub.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L423GitHubgithub.com/tutao/tutanota/commit/88ecad17d00d05a722399aed35f0d280899d55a2GitHubgithub.com/tutao/tutanota/security/advisories/GHSA-mxgj-pq62-f644Refuser-images.githubusercontent.com/46137338/270564886-7a0389d3-f9ef-44e1-9f5e-57ccc72dcaa8.mp4

How CyberStrike helps

Frequently asked questions

What is CVE-2023-46116?

CVE-2023-46116 is a critical-severity vulnerability. It was published on December 15, 2023 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

How severe is CVE-2023-46116?

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-46116?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-46116?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-46116 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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