CVE-2021-22895
Nextcloud Desktop Client SSL Certificate Verification Vulnerability
Description
Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the "Register with a Provider" flow.
INFO
Published Date :
June 11, 2021, 4:15 p.m.
Last Modified :
Dec. 2, 2021, 9:19 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
Affected Products
The following products are affected by CVE-2021-22895
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2021-22895.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/desktop/pull/2926 | Patch Third Party Advisory |
| https://github.com/nextcloud/desktop/releases/tag/v3.1.3 | Release Notes Third Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5 | Third Party Advisory |
| https://hackerone.com/reports/903424 | Exploit Issue Tracking Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4974 | 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-2021-22895 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-22895 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]
Dec. 02, 2021
Action Type Old Value New Value Changed Reference Type https://www.debian.org/security/2021/dsa-4974 No Types Assigned https://www.debian.org/security/2021/dsa-4974 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 20, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4974 [No Types Assigned] -
Reanalysis by [email protected]
Jul. 12, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:* versions up to (excluding) 3.3.1 OR *cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:* versions up to (excluding) 3.1.3 -
Initial Analysis by [email protected]
Jun. 22, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://github.com/nextcloud/desktop/pull/2926 No Types Assigned https://github.com/nextcloud/desktop/pull/2926 Patch, Third Party Advisory Changed Reference Type https://github.com/nextcloud/desktop/releases/tag/v3.1.3 No Types Assigned https://github.com/nextcloud/desktop/releases/tag/v3.1.3 Release Notes, Third Party Advisory Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5 Third Party Advisory Changed Reference Type https://hackerone.com/reports/903424 No Types Assigned https://hackerone.com/reports/903424 Exploit, Issue Tracking, Third Party Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:* versions up to (excluding) 3.3.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-22895 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-2021-22895
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.19 }} 0.02%
score
0.55664
percentile