CVE-2021-32800 Information

Description

Nextcloud server is an open source self hosted personal cloud. In affected versions an attacker is able to bypass Two Factor Authentication in Nextcloud. Thus knowledge of a password or access to a WebAuthN trusted device of a user was sufficient to gain access to an account. It is recommended that the Nextcloud Server is upgraded to 20.0.12 21.0.4 or 22.1.0. There are no workaround for this vulnerability.

CVSS Vector

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

Reference

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gv5w-8q25-785v https://hackerone.com/reports/1271052 https://github.com/nextcloud/server/pull/28078

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

8.1