CVE-2020-8236
Nextcloud Server Incorrect Two-Factor Verification
Description
A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the passwordless WebAuthn but not verifying it.
INFO
Published Date :
Nov. 2, 2020, 9:15 p.m.
Last Modified :
Sept. 27, 2022, 3:47 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.9
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-2020-8236.
| URL | Resource |
|---|---|
| https://hackerone.com/reports/924393 | Exploit Third Party Advisory |
| https://nextcloud.com/security/advisory/?id=NC-SA-2020-037 | Broken Link Vendor 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-2020-8236 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-8236 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 -
Reanalysis by [email protected]
Sep. 27, 2022
Action Type Old Value New Value Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2020-037 Vendor Advisory https://nextcloud.com/security/advisory/?id=NC-SA-2020-037 Broken Link, Vendor Advisory Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 19.0.2 OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions up to (excluding) 19.0.2 -
Initial Analysis by [email protected]
Nov. 16, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://hackerone.com/reports/924393 No Types Assigned https://hackerone.com/reports/924393 Exploit, Third Party Advisory Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2020-037 No Types Assigned https://nextcloud.com/security/advisory/?id=NC-SA-2020-037 Vendor Advisory Added CWE NIST CWE-287 Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 19.0.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-8236 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-2020-8236
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.01%
score
0.38461
percentile