CVE-2023-46116 CRITICAL

CVE-2023-46116: Remote Code Execution via insufficiently sanitized call to shell.openExternal

Vendor Tutao
Product tutanota
Weakness CWE-20 · Input validation
Published December 15, 2023
Last update October 8, 2024

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 15, 2023 CVE published
October 8, 2024 Record updated