CVE-2023-46116

Public Exploit
Remote Code Execution via insufficiently sanitized call to shell.openExternal

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.

Category

9.3
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.66% Top 30%
Vendor Advisory github.com
Affected: tutao tutanota
Published at:
Updated at:

References

Link Tags
https://github.com/tutao/tutanota/security/advisories/GHSA-mxgj-pq62-f644 vendor advisory exploit
https://github.com/tutao/tutanota/commit/88ecad17d00d05a722399aed35f0d280899d55a2 patch
https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L417 product
https://github.com/tutao/tutanota/blob/master/src/desktop/ApplicationWindow.ts#L423 product
https://user-images.githubusercontent.com/46137338/270564886-7a0389d3-f9ef-44e1-9f5e-57ccc72dcaa8.mp4 exploit

Frequently Asked Questions

What is the severity of CVE-2023-46116?
CVE-2023-46116 has been scored as a critical severity vulnerability.
How to fix CVE-2023-46116?
To fix CVE-2023-46116, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-46116 being actively exploited in the wild?
It is possible that CVE-2023-46116 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-46116?
CVE-2023-46116 affects tutao tutanota.
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