CVE-2023-46116

Summary

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.

Affected Software

Weaknesses

• CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

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

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: total

References

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

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