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Improper authentication on public shares (NC-SA-2018-012)

25th October 2018

Risk level: Low

CVSS v3 Base Score: 3.7 (CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N)

CWE: Improper Authentication - Generic (CWE-287)

Description

A missing access check could lead to continued access to password protected link shares when the owner had changed the password.

Affected Software

  • Nextcloud Server < 14.0.0 (CVE-2018-16464)

Action Taken

The error has been fixed.

Resolution

It is recommended that all instances are upgraded to Nextcloud 14.0.0.

Acknowledgements

The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:

  • Rudra Pratap Singh - Vulnerability discovery and disclosure.

This advisory is licensed CC BY-SA 4.0.

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