CVE-2021-32800
Nextcloud Server Two Factor Authentication Bypass
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.
INFO
Published Date :
Sept. 7, 2021, 10:15 p.m.
Last Modified :
Sept. 27, 2022, 2:18 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-32800.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gv5w-8q25-785v | Third Party Advisory |
| https://github.com/nextcloud/server/pull/28078 | Patch Third Party Advisory |
| https://hackerone.com/reports/1271052 | Permissions Required Third Party Advisory |
| https://security.gentoo.org/glsa/202208-17 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32800 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32800 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 27, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202208-17 No Types Assigned https://security.gentoo.org/glsa/202208-17 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.12 *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.0.4 *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions from (including) 22.0.0 up to (excluding) 22.1.0 OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.12 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.0.4 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions from (including) 22.0.0 up to (excluding) 22.1.0 -
CVE Modified by [email protected]
Aug. 11, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-17 [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gv5w-8q25-785v No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gv5w-8q25-785v Third Party Advisory Changed Reference Type https://github.com/nextcloud/server/pull/28078 No Types Assigned https://github.com/nextcloud/server/pull/28078 Patch, Third Party Advisory Changed Reference Type https://hackerone.com/reports/1271052 No Types Assigned https://hackerone.com/reports/1271052 Permissions Required, Third Party Advisory Added CWE NIST CWE-306 Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.12 *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.0.4 *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions from (including) 22.0.0 up to (excluding) 22.1.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32800 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-32800
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.28 }} 0.08%
score
0.63284
percentile